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Latest BWSSB Assistant Engineer Exam Question (Objective Questions), MCQ in English

Subjects : Civil Engineering

Question Bank BWSSB Assistant Engineer Paper-2 Civil Exam - English

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Civil Engineering

Question 1Single Answer

A water supply distribution system for an averagely-populated township is to be designed for

A
Maximum daily demand
B
Maximum hourly demand and fire demand
C
Average demand
D
Maximum daily demand and fire demand or maximum hourly demand, whichever is higher

Question 2Single Answer

A combined sewerage system is more appropriate for developed areas where

A
Rainfall occurs for a very few days in a year
B
Rainfall occurs almost uniformly throughout the year
C
Air temperatures are nearly uniform throughout the year
D
Air temperatures through the year include extremes during certain runs of days

Question 3Single Answer

100 m³ of sludge holds a moisture content of 95%. If its moisture content chagnes to 90%, the volume of this sludge will then be

A
40.5m³
B
50m³
C
75m³
D
94.7m³

Question 4Single Answer

The design overflow rate of a sedimentation tank is chosen considering

A
Flow rate through the tank
B
Diameter of the particle intended to be removed
C
Volume of the sedimentation tank
D
Detention time in the tank

Question 5Single Answer

Consider the following statements in respect of flow equalization in a waste water treatment plant :
1. Biological treatment is enhanced because shock loadings are eliminated or minimized
2. Flow equalizations is an attractive option for upgrading the performance of overloaded treatment plants.
3. Inhibiting substances can be diluted and pH can be stabilized
4. Thickening performance of primary sedimentation tanks following grit removal is improved.
Which of the above statements are correct?

A
1, 2, 3 and 4
B
1, 2 and 3 only
C
1, 2 and 4 only
D
3 and 4 only

Question 6Single Answer

A drain carrying 5m³/s of wastewater with its BOD of 100mg/l joins a stream carrying 50 m³/ s flow with its BOD of 5mg/l. What will be the value of the BOD of the combined flow after complete mixing?

A
3.6 mg/l
B
13.6 mg/l
C
33.6 mg/l
D
53.6 mg/l

Question 7Single Answer

Consider the following statements in respect of aerated grit chamber:
1. The grit accumulates at the bottom in advancing spiral-flow aeration tanks, location ally preceded by grit chambers, led to the eventual development of aerated grit chambers.
2. The excessive wear on grit handling equipment is a major factor for the popularity of aerated grit chambers.
3. Aerated grit chambers are designed to provide detention period of 1 minute at maximum rate of flow.
4. Diffusers are located at 0.45 m to 0.6 m above the bottom of teh chamber.
Which of the above statements are correct?

A
1, 2 and 3 only
B
3 and 4 only
C
1, 2 and 4 only
D
1, 2, 3 and 4

Question 8Single Answer

Quick sand condition occurs when

A
the void ratio of the soil becomes 1.0
B
the upward seepage pressure in soil becomes zero
C
the upward seepage pressure in soil becones equal to the saturated unit weight of he soil
D
the upward seepage pressure in soil becomes equal to he submerged unit weight of the soil

Question 9Single Answer

The side of a square land was measured as 150 m and is in error by 0.05 m. What is the corresponding error in the computed area of the land.

A
5 m²
B
25 m²
C
10 m²
D
20 m²

Question 10Single Answer

Consider the following statements in respect of anaerobic sludge digester:
1. It is less expensive compared to several other methods available.
2. Processing of separable solids impacts the environment to a minimum
3. Quantity of separated solids requiring disposal is minimal
4. Digested sludge is very readily dewaterable.
Which of the above statements are correct?

A
1, 2, 3 and 4
B
1, 2 and 3 only
C
3 and 4 only
D
1, 2 and 4 only

Question 11Single Answer

Consider the following statements as regards a Septic Tank
1. The size required is large and uneconomical when serving more than roughly 100 persons.
2. It can remove around 90% of BOD and 80% of suspended solids.
3. As compared to the sludge holdings of a plain sedimentation tank, a septic tank can hold about 90% less of sludge volume.
4. Frequent removal of sludge is not required Which of the above statements are correct?

A
1 and 2
B
1 and 3
C
3 and 4
D
1 and 4

Question 12Single Answer

Sewage sickness relates to

A
Toxicity of sewage interfering with ‘response’ to treatment
B
Destruction of aquatic flora and fauna due to gross pollution of receiving bodies of water by the sewage
C
reduction in the waste purifying capacity of the soil
D
Clogging of pores in soil due to excessive application of sewage leading to obstruction of land aeration thereby leading to septic conditions in the land

Question 13Single Answer

The waste water of a certain large colony contains 10^–5.6 mmol of OH^– ions at 25ºC. The pH of this sample is

A
8.6
B
7.9
C
5.4
D
4.5

Question 14Single Answer

Consider the relevance of the following features for causing photochemical smog:
1. Air stagnation
2. Abundant sunlight
3. High concentration of NO_x in atmosphere.
4. High concentration of SO₂ in atmosphere. Which of the above features are correct?

A
1, 2 and 4 only
B
3 and 4 only
C
1, 2 and 3 only
D
1, 2, 3 and 4

Question 15Single Answer

Consider the following statements related to ecology:
1. All the physical, chemical and biological factors that a species needs in order to live and reproduce is called ecological niche.
2. The boundary zone between two ecosystems is known as ecotone.
3. The forests in the Arctics are known as tundra.
4. A biome usually has a distinct climate and life forms adapted to that climate. Biome is more extensive and complex than an ecosystem Which of the above statements are correct?

A
1, 2 and 3 only
B
1, 2 and 4 only
C
3 and 4 only
D
1, 2, 3 and 4

Question 16Single Answer

Consider the following laws of ecology suggested by Barry Commoner:
1. Everything is connected to everything else.
2. Everything must go somewhere.
3. Nature knows best.
4. There is no such thing as a free lunch.
Which of the above statements are correct?

A
1, 2 and 3 only
B
1, 2 and 4 only
C
3 and 4 only
D
1, 2, 3 and 4

Question 17Single Answer

For a hydraulically efficient rectangular channel of bed width 5m, the hydraulic radius is

A
0.5m
B
1.25m
C
2.75m
D
4.25m

Question 18Single Answer

A soil sample has shrinkage limit of 6%, and the specific gravity of the soil grains is 2.6. The porosity of soil at shrinkage limit is

A
7.5%
B
9.5%
C
13.5%
D
16.5%

Question 19Single Answer

Local mean time of a place of longitude of 42⁰36’ W is 8h 42m 15s AM. The corresponding Green which Mean Time is

A
10 h 32 m 40 s AM
B
11h 32 m 39s PM
C
0 h 32 m 39s PM
D
11 h 32 m 39s AM

Question 20Single Answer

A vertical photograph of a flat area having an average elevation of 250m above mean sea level was taken with a camera of focal length 25 cm. A section line AB 300 m long in the area measures 15cm on the photograph; a tower BP in the area also appears on the photograph. The distance between images of top and bottom of the tower measures 0.5 cm on the photograph. The distance of the image of the top of the tower is 10 cm. The actual height of the tower is

A
10 m
B
15 m
C
20 m
D
25 m

Question 21Single Answer

Consider the following statements :
1. There will be no defects in select grade timbers.
2. The codal values for strength of grade-II timer without defects may be reduced by 37.5%.
3. For timber used as columns, the permissible stress in ungraded timbers is adopted with a multiplying factor of 0.50.
4. In case of wind force and earthquakes, a modification factor of 1.33 is adopted. Which of the above statements are correct ?

A
1 and 3 only
B
1 and 4 only
C
2 and 4 only
D
2 and 3 only

Question 22Single Answer

Consider the following statements regarding timber :
1. The strength of timber increases by Kiln seasoning.
2. Cutting of wood is to be done prior to treatment.
3. Water seasoning is good for prevention of warping.
4. ASCU treatment enhances the strength of wood. Which of the above statements are correct ?

A
1, 2 and 3 only
B
2, 3 and 4 only
C
1, 3 and 4 only
D
1, 2, 3 and 4

Question 23Single Answer

Gase(s) emitted during rotting or decomposition of timber is /are mainly

A
Methane and Hydrogen
B
Hydrogen Sulphide
C
Carbonic acid and Hydrogen
D
Ammonia

Question 24Single Answer

Efflorescence of bricks is due to

A
Excessive burning of bricks
B
High silt content in brick clay
C
High porosity of bricks
D
Soluble salts present in parent clay

Question 25Single Answer

Disintegration of bricks masonry walls is primarily due to
1. Efflorescence
2. Magnesium sulphate in brick
3. Calcined clay admixtures
4. Kankar nodules
Which of the a above statements are correct ?

A
1, 2 and 3 only
B
1, 2 and 4 only
C
3 and 4 only
D
1, 2, 3 and 4

Question 26Single Answer

Consider the following test :
1. Transverse strength test
2. Water absorption test
3. Impact test
4. Breaking strength test
Which of the above are relevant to testing of tiles ?

A
1, 2 and 3 only
B
1, 2 and 4 only
C
3 and 4 only
D
1, 2, 3 and 4

Question 27Single Answer

Which of the following statements is/are correct regarding the strength of cement ?
1. Particle sizes less than 3 m increases the viscous nature of the cement.
2. Finer particles in cement can be replaced by fly-ash to improve the strength.

A
1 only
B
2 only
C
Both 1 and 2
D
Neither 1 nor 2

Question 28Single Answer

The constituent compound in Portland cement which reacts immediately with water, and also sets earliest, is

A
Tricalcium silicate
B
Dicalcium silicate
C
Tricalcium aluminate
D
Tetracalcium aluminoferrite

Question 29Single Answer

Which of the following statements are correct with regard to cement mortar ?
1. Workability of cement mortar can be improved by addition of lime.
2. Fly-ash cement is economical in plastering jobs.
3. Addition of saw dust improves workability.
4. Sand in mortar can be replaced by finely crushed fire bricks.

A
1, 2, 3 and 4
B
1, 2 and 3 only
C
3 and 4 only
D
1, 2 and 4 only

Question 30Single Answer

In a concrete mix of proportion 1 : 3 : 6, the actual quantity of sand, which is judged to have undergone 15% bulking, per unit volume of cement, will be

A
3.00
B
3.45
C
4.50
D
6.00

Question 31Single Answer

Consider the following statements:
1. IS 3583 refers to Burnt Clay Paving Bricks.
2. IS 5779 refers to Burnt Clay Soling Bricks.
3. IS 3952 refers to Burnt Clay Hollow Bricks.
4. IS 2222 refers to Burnt Clay Lay Bricks.
Which of the above statements are correct?

A
1, 2 and 3 only
B
1, 2 and 4 only
C
3 and 4 only
D
1, 2, 3 and 4

Question 32Single Answer

Consider the following statements:
1. A high aggregate impact value indicates strong aggregates.
2. A low aggregate crushing value indicates high crushing strength of aggregates.
3. Aggregates having elongation index values greater than 15% are generally considered suitable for pavement construction.
4. Flakiness index of aggregates should not be less than 25% for use in road construction.
Which of the above statements are correct?

A
2 and 3 only
B
2 and 4 only
C
1 and 3 only
D
1 and 4 only

Question 33Single Answer

Consider the following statements regarding refractory bricks in furnaces:
1. The furnace is fired at temperatures more than 1700°C.
2. Silica content in the soil should be less than 40%.
3. Water absorption of bricks should not exceed 10%
4. Chrome bricks are known as basic bricks. Which of the above statements are correct?

A
1 and 2 only
B
2 and 4 only
C
1 and 3 only
D
3 and 4 only

Question 34Single Answer

Consider the following statements about lime:
1. Calcination of limestone results in quick lime.
2. Lime produced from pure variety of chalk is hydraulic lime.
3. Hydrated lime is obtained by treating quick lime with water.
Which of the above statements are correct?

A
1, 2 and 3
B
1 and 2 only
C
2 and 3 only
D
1 and 3 only

Question 35Single Answer

Consider the following statements:
1. If more water is added to concrete for increasing its workability, it results into concrete of low strength.
2. No slump is an indication of a good workable concrete.
3. Higher the slump of concrete, lower will be its workability.
4. Workability of concrete is affected by water content as well as water-cement ratio.
Which of the above statements are correct?

A
1 and 3 only
B
2 and 3 only
C
1 and 4 only
D
2 and 4 only

Question 36Single Answer

Pozzolana used as an admixture in concrete has the following advantages:
1. It improves workability with lesser amount of water.
2. It increases the heat of hydration and so lets the concrete set quickly.
3. It increases the resistance of concrete to attack by salts and sulphates.
4. It leaches out calcium hydroxide.
Select the correct answer using the codes given below:

A
1, 2 and 3 only
B
1, 2 and 4 only
C
1, 3 and 4 only
D
2, 3 and 4 only

Question 37Single Answer

Consider the following statements regarding Cyclopean Concrete:
1. Size of aggregate is more than 150 mm.
2. Size of aggregate is less than 150 mm.
3. High slump.
4. High temperature rise due to heat of hydration.
Which of the above statements are correct?

A
1 and 3 only
B
1 and 4 only
C
2 and 3 only
D
2 and 4 only

Question 38Single Answer

A chain, working a crane, has sectional area of 625 mm² and transmits a load of 10 kN. When the load is being lowered at a uniform rate of 40 m/min, the chain gets jammed suddenly at which time the length of the chain unwound is 10m. Assuming E = 200 GPa, the stress induced in the chain due to this sudden jamming is

A
100.6 N/mm²
B
120.4 N/mm²
C
140.2 N/mm²
D
160.0 N/mm²

Question 39Single Answer

In mild steel specimens subjected to tensile test cycle, the elastic limit in tension is raised and the elastic limit in compression is lowered, This is called

A
Annealing effect
B
Bauschinger effect
C
Strain rate effect
D
Fatigue effect

Question 40Single Answer

Consider the following statements :
1. The shear stress distribution across the section of a circular shaft subjected to twisting varies parabolically.
2. The shear stress at the centre of a circular shaft under twisting moment is zero
3. The shear stress at the extreme fibres of a circular shaft under twisting moment is maximum.
Which of the above statements is/are correct?

A
1, 2 and 3
B
1 only
C
2 only
D
3 only

Question 41Single Answer

One bag of Portland cement, 50 kg in weight, would normally have a bulk volume of

A
30 l
B
35 l
C
40 l
D
45 l

Question 42Single Answer

AsCu, a preservative for wood, developed by the Forest Research Institute, Dehradun, comprises of chemicals:

A
1 : 1 : 1
B
1 : 2 : 3
C
1 : 2 : 4
D
1 : 3 : 4

Question 43Single Answer

Consider the following statements related to autoclave bricks:
1.Less water absorption compared to other bricks.
2.Noise reduction
3.It is cheap compared to other types of bricks.
4.Requirement of bulk volume of mortar in joints being relatively less compared to other types of brick masonry.
5.Not recommended for outer walls.
Which of the above statements are relevant to the use of ‘autoclave’ bricks?

A
1, 2 and 4
B
1, 3 and 5
C
2, 3 and 4
D
2, 4 and 5

Question 44Single Answer

The minimum number of annular rings to be seen in every 2.54 cm in the radial direction from the core for timber to be classified as ‘Dense’ is

A
10
B
20
C
25
D
30

Question 45Single Answer

If the actual thickness of a brick masonry wall is 19 cm, its effective length is 2.70 m, its effective height is 2.82 m and its code specified stiffening coefficient is 1.2 then, for design considerations, the slenderness ratio of the wall will be taken as

A
11.8
B
12.4
C
14.2
D
14.8

Question 46Single Answer

Consider the following forms of water in a hydrated cement paste:
1.Capillary water
2.Chemically combined water
3.Interlayer water
4.Adsorbed water
Which of the above forms of water will, on its/their removal, cause shrinkage of the paste?

A
1, 2 and 3
B
1, 2 and 4
C
2, 3 and 4
D
1, 3 and 4

Question 47Single Answer

Consider the following statements:High early strength of cement is obtained as a result of
1.Fine grinding.
2.Decreasing the lime content
3.Burning at higher temperature
4.Increasing the quality of gypsum.
Which of the above statements are correct?

A
1 and 2
B
1 and 3
C
2 and 3
D
3 and 4

Question 48Single Answer

Consider the following statements related to ‘composite mortar’:
1.Addition of lime to cement mortar improves its workability
2.Composite mortar is obtained by adding 10% by weight of cement and mixing with water.
3.Composite mortar is not preferred in tall buildings.
4.Mechanical grinding is essential for developing composite mortar.Which of the above statements are true in this case?

A
1, 2 and 3 only
B
1, 3 and 4 only
C
2, 3 and 4 only
D
1, 2, 3 and 4

Question 49Single Answer

Consider the following statements related to ‘non-destructive testing’ of concrete:
1.Indentation test is used to assess the quality of concrete.
2.Resonant Frequency Method is based on a laboratory test.
3.Compressive strength of concrete is estimated through Pulse Velocity Measurement.
4.Dynamic modulus of Elasticity is determined by a Sonometer Test.
5.Thickness of concrete can be estimated by in-situ Rebound Hammer Test.
Which of the above statements are correct?

A
1, 2 and 3 only
B
1, 2 and 5 only
C
1, 2, 3 and 4 only
D
1, 2, 3, 4 and 5

Question 50Single Answer

What is the amount of water required for a workable RC of mix 1 : 2: 4 by weight., when W/C is 0-60 and unit weight of concrete is 2400 kg/m³?

A
165 l
B
205 l
C
245 l
D
285 l

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Civil Engineering

Question 51Single Answer

What will be the depth of penetration of the plunger in Vicat Apparatus (IS : 5513 - 1976) from the bottom of the Vicat Mould, when the cement paste is tested for standard consistency, according to IS 4031 – 1988 ?

A
11 to 15 mm
B
8 to 10 mm
C
15 to 17 mm
D
5 to 7 mm

Question 52Single Answer

Two sewer pipelines A and B (having the same diameter and made of the same material) are laid at a bed slope of 1 in 225 and 1 in 625, respectively. Determine the ratio of their carrying capacities (Q_A to Q_B) .

Question 53Single Answer

Select the correct statement with respect to an over - reinforced cement concrete section under the working stress method .

A
The compressive stress in steel reaches the allowable limit before the maximum tensile stress in concrete reaches the allowable limit
B
Tensile steel stress and maximum compressive stress in concrete simultaneously reach their allowable limits
C
The allowable limiting stress is reached in concrete before the steel stress reaches the limiting value
D
The tensile stress in steel reaches the allowable limit before the maximum compressive stress in concrete reaches the allowable limit

Question 54Single Answer

A cantilever beam of span L is built - in at the support. It is restrained against lateral deflection and torsion at the free end. The effective length of compression flange for the beam as per IS 800 : 2007 is

A
0.5 L
B
0.85 L
C
2 L
D
0.75 L

Question 55Single Answer

What is the principle of plane surveying ?

A
Working from part to whole
B
Working from point to area
C
Working from angle to volume
D
Working from whole to part

Question 56Single Answer

According is IS 5968 : 1987, the minimum radius of radius of curve to be provided in the alignment of unlined canals carrying a discharge of less than 30 cumecs up to 15 cumecs is :

A
100 m
B
1000 m
C
600 m
D
150 m

Question 57Single Answer

A Pelton wheel is to be designed for a pitch diameter of 1 m and jet diameter of 0.1 m. The number of buckets on the runner computed by Taygun’s formula is :

A
20
B
25
C
15
D
10

Question 58Single Answer

What is the effect of fly ash in concrete ?

A
Reduces the secondary hydration process
B
Increases the heat of hydration
C
Increases the amount of air entrainment
D
Reduces the heat of hydration

Question 59Single Answer

As per IS 456 : 2000, the minimum grade of concrete to be used for plain concrete and reinforced concrete, respectively, in concrete works exposed directly along the sea coast are :

A
M 20 and M 30
B
M 20 and M 25
C
M 22 and M 40
D
M 15 and M 25

Question 60Single Answer

Identify the property that changes as a function of the geometrical dimensions of a section in structural materials :

A
Mass density
B
Moment of inertia
C
Poission’s ratio
D
Modulus of elasticity

Question 61Single Answer

As per IRC (Indian Roads Congress) recommendation, what will be the designed stopping sight distance (in metres) at the vehicle speed of 80 km/h on a rural highway ?

A
120
B
140
C
70
D
60

Question 62Single Answer

No deduction is made in the quantity estimation for plastering work in cement mortar for openings having size up to :

A
0.5 m²
B
1.0 m²
C
3 m²
D
0.75 m²

Question 63Single Answer

What is the height of slump cone mould used for testing the workability of the concrete ?

A
20 cm
B
10 cm
C
30 cm
D
25 cm

Question 64Single Answer

Select the correct option with regard in the following statements (S1, S2) pertaining to pavements .
S1 : Present serviceability index is used for the functional evaluation of pavement surface condition
S2 : Rigid pavements are less affected by temperature variations than flexible pavements

A
Statements S1 is true and Statement S2 is false
B
Both statements S1 and S2 are false
C
Statements S1 is false and Statement S2 is true
D
Both statements S1 and S2 are true

Question 65Single Answer

If the quadrantal bearing of a line AB is S 31'35' E, then its whole circle bearing is equal in :

A
121^o25'
B
148^o25'
C
58^o25'
D
211^o25'

Question 66Single Answer

The overflowing sheet of water on a weir is called :

A
creek
B
crest
C
limp
D
nappe

Question 67Single Answer

According to IS 456 - 2000, what is the slump of a medium degree of workability of concrete if planed in heavily reinforced sections like slabs, beams, walls, columns ?

A
10 - 25 mm
B
25 - 50 mm
C
0 - 10 mm
D
50 - 100 mm

Question 68Single Answer

Which of the following is Kharif season in India ?

A
March / April to June / July
B
December / January to April / May
C
May / June to October / November
D
October / November to April / May

Question 69Single Answer

The estimated value of a built - up property at the end of its useful life without dismantled is called :

A
market value
B
book value
C
scrap value
D
salvage value

Question 70Single Answer

The amount of cement required for 100 m²area, of damp proof course with 2.5 cm thinkness, in with proportion of 1: 2 : 4 (cement : sand : aggregate) will be :

A
2.5 m²
B
0.55 m²
C
1.10 m²
D
0.25 m²

Question 71Single Answer

Select the correct statement related to increasing the carbon content in steel from 0.2 to 0.9 percent .

A
Increasing the carbon content in steel decreases the yield stress and increases the ductility
B
Increasing the carbon content in steel increases the yield stress and reduces the ductility
C
Increasing the carbon content in steel decreases the yield stress and does not affect the ductility
D
Increasing the carbon content in steel does not have any effect on the yield stress or ductility

Question 72Single Answer

Which of the following laws states that pressure or intensity of pressure at a point is static fluid is equal in all directions ?

A
Newton's law
B
Pascal's law
C
Darcy's law
D
Hydrostatic law

Question 73Single Answer

The determination of plasticity index and the percentage by weight of clay mineral finer than 2 µ present in the soil were done for two soil samples A and B. The ratio of plasticity index to the percentage of clay size particle for the samples A and B are given in the table .
Soil sample Ratio of plasticity index to percentage of clay size particle
Sample A Less than 0.75
Sample B Greater than 1.25 The two soil sample A and B are classified as

A
Sample A : Inactive; Sample B : Active
B
Sample A : Active; Sample B : Normal
C
Sample A : Active; Sample B : Inactive
D
Sample A : Normal ; Sample B : Inactive

Question 74Single Answer

Which of the following compounds of cement is responsible for early strength ?

A
C₄AF
B
C₃S
C
C₃A
D
C₂A

Question 75Single Answer

According to SP : 27 - 1984, the thickness of slab or RC slab shall be measured to the nearest of :

A
0.0002 m
B
0.005 m
C
0.0001 m
D
0.01 m

Question 76Single Answer

Classify the following pollutants as primary pollutants (PP) and secondary pollutants (SP). Ozone, Carbon monoxide, Particulate matter, photochemical smog, Nitrogen oxides, Aerosol/mist, Hydrocarbons, Perory - Acetyl - Nitrate, Sulphur dioxide.

A
PP : Ozone, Photochemical smog, Aerosol/mist, Peroxy – Acetyl - Nitrate
SP : Carbon monoxide, Particulate matter, Nitrogen oxides, Hydrocarbons, Sulphur dioxide
B
SP : Carbon monoxide, Particulate matter, Aerosol/mist, Peroxy - Acetyl - Nitrate
SP : Nitrogen oxides, Hydrocarbons, Sulphur dioxide, Ozone, Photochemical smog
C
PP : Carbon monoxide, Particulate matter, Hydrocarbons, Sulphur dioxide
SP : Ozone, Photochemical smog, Aerosol/mist, Peroxy - Acetyl - Nitrate
D
PP : Ozone, Photochemical smog, Carbon monoxide, Particulate matter, Nitrogen oxides
SP : Aerosol/mist, Peroxy - Acetyl - Nitrate, Hydrocarbons, Sulphur dioxide

Question 77Single Answer

Saturated unit weight of soil is the ratio of :

A
bulk unit weight of a soil when it is fully saturated
B
saturated bulk unit weight to total void
C
total void to saturated bulk unit weight
D
total void to saturated bulk unit weight

Question 78Single Answer

Identify the test to be conducted for the determination of the modulus of subgrade reaction in pavement design .

A
Plate bearing test
B
Triaxial test
C
CBR test
D
Direct shear test

Question 79Single Answer

In limit state design, the design bond stress for deformed bars (conforming to IS 1786) for M20 concrete mentioned in IS 456 : 2000 is (in N/mm² units) :

A
1.2
B
1.8
C
1.68
D
1.92

Question 80Single Answer

Which of the following can be considered as a taking off point in road planning in India ?

A
Lucknow plan
B
Delhi plan
C
Bombay plan
D
Nagpur plan

Question 81Single Answer

The following two statements pertain to a simply supported under reinforced concrete beam. Select the correct option with regard is these statements .
1. The failure of the beam takes place due to the yielding of steel .
2. The moment of resistance of the beam is more than that of the balanced section of the beam .

A
Statement 1 is true but Statement 2 is false
B
Statement 1 is false but Statement 2 is true
C
Both statement 1 and 2 are true
D
Both statement 1 and 2 are false

Question 82Single Answer

A continuous beam ABC with span AB = BC = L is shown in the figure. Support A is fixed type, and supports B and C are roller type. The kinematic indeterminacy of the beam is :

Question 83Single Answer

The soils transported and deposited by a river or a stream care called :

A
aeolian soils
B
alluvial soils
C
lacustrine soils
D
marine soils

Question 84Single Answer

What is the mechanical extra widening required for a two-lane pavement of width 7 m on a horizontal curve of radius 250 m, if the longest wheel base of a vehicle expected on the road is 5 m with a design speed of 70 km/h ?

A
0.155 m
B
0.225 m
C
0.100 m
D
0.552 m

Question 85Single Answer

The following are some of the errors that area associated with a total station survey work. Vertical collimation error, Centering error, Horizontal collimation error, Eccentricity error Categorize the given errors as those due to temporary adjustments (T) and permanent adjustments (P).

A
T : Vertical collimation error, Horizontal collimation error
P : Centering error, Eccentricity error
B
T : Centering error, Horizontal collimation error, Eccentricity error
P : Vertical collimation error
C
T : Eccentricity error, Horizontal collimation error
P : Centering error, Vertical collimation error, Eccentricity error
D
T : Centering error
P : Vertical collimation error, Horizontal collimation error, Eccentricity error

Question 86Single Answer

According to IS 800 : 2007, identify the property which is considered as a mechanical property of structural steel, important in design .

A
Unit mass
B
Maximum percent elongation on a standard gauge length
C
Co - efficient of thermal expansion
D
Poisson ration

Question 87Single Answer

Which of the following methods is NOT used for measuring air content in fresh concrete ?

A
Blaine air permeability method
B
Gravimetric method
C
Pressure method
D
Volumetric method

Question 88Single Answer

Which of the following methods is NOT used for the calculation of depreciation of a structure ?

A
Straight line method
B
Quantity survey method
C
Geometric projection method
D
Declining balance method

Question 89Single Answer

The failure of an over reinforced concrete beam is due to :

A
compression failure
B
mid failure
C
shear failure
D
tension failure

Question 90Single Answer

In which type of estimate is 'Court yard' NOT considered ?

A
Unit rate estimate
B
Plinth area estimate
C
Lump sum estimate
D
Cub rate estimate

Question 91Single Answer

Match the items in List 1 (name of quantities) with those in List 2 (unit of quantities in the SI system). Use codes in List for matching .
List 1 List 2
M. Dynamic viscosity 1. N/m
N. Kinematic viscosity 2. N.m
O. Surface tension 3. N.s/m²
P. Energy 4. m²/s

A
M-3, N-4, O-2, P-1
B
M-3, N-4, O-1, P-2
C
M-4, N-3, O-1, P-2
D
M-2, N-4, O-1, P-3

Question 92Single Answer

A reinforced concrete beam is subjected to the following bending moments .
Moment due to dead load = 50 kNm
Moment due to live load = 50 kNm
Moment due to seismic load = 20 kNm
The design bending moment for limit state of collapse is :

A
120 kNm
B
180 kNm
C
144 kNm
D
150 kNm

Question 93Single Answer

In a workshop shade, trusses are spaced at 4 m centre to centre. The purlins are spaced at 1.4 m centre to centre along the slope of 30⁰. The (Dead Load + Live load) is 3 kNm² and the wind load in 5 kNm². The vertical and the inclined point loads, respectively, will be :

A
14.54 kN and 28 kN
B
17.8 kN and 48 kN
C
20 kN and 24 kN
D
18 kN and 21 kN

Question 94Single Answer

What will be the percentage of passing aggregate for the grading zone 1 of sieve size 1.18 mm ?

A
100%
B
10% - 20%
C
7% - 25%
D
30% - 70%

Question 95Single Answer

The annual or periodical payment for repayment of the capital amount invested on a property for a specified period is known as :

A
depreciation
B
obsolescence
C
amortization
D
annuity

Question 96Single Answer

Among the following river training works, which are aligned either parallel or at an angle to the banks, identify the one having a difference in alignment when compared to others :

A
Flood walls
B
Guide banks
C
Groynes
D
Levees

Question 97Single Answer

The test commonly to determine the grade of bitumen in terms of its hardness is :

A
the penetration test
B
the ductility test
C
the softening point test
D
the flash and fire point test

Question 98Single Answer

A level section has formation width of 10 m, side slope of 1 : 2 (vertical : horizontal) and central height of 2 m. Determine the quantity of earthwork required for a 1 km length of formation (in m³) .

A
24,000
B
20,000
C
18,000
D
28,000

Question 99Single Answer

Which type of odour characteristic is NOT used for classifying odour of a given water sample as per IS 3025 (part-5) 1983 ?

A
Degree of sweetness
B
Degree of turbidity
C
Degree of pungency
D
Degree of smokiness

Question 100Single Answer

The liquid limit and plastic limit of clay materials is 45% and 25% respectively, what is the activity of clay materials if 20% by weight of particles of size less than 2 microns ?

Question 101Single Answer

Among the following corrections applied for tape measurement, identify the correction which is NOT always negative in sign :

A
Sag
B
Slope of taype
C
Pull
D
Wrong alignment

Question 102Single Answer

A village has a population of 200 with as average rate of water demand as 100 litre per capita per day. A rapid sand filter having an average filtration rate of 100 litre/hour/m² is to be designed for water treatment. The area of rapid sand filter required is : (Take the ratio of maximum demand to average demand as 1.5.)

A
8.00 m²
B
14.50 m²
C
10.00 m²
D
12.50 m²

Question 103Single Answer

If the bearing of the side AB of a regular hexagon traverse ABCDFFA shown in the figure is 36^o45', the bearing of the adjacent side BC of the traverse is :

A
216^o15'
B
96^o45'
C
83^o15'
D
156^o45'

Question 104Single Answer

Pigment volume concentration (PVC) of paint is defined as :

Question 105Single Answer

The Indian Roads Congress (IRC) was founded in the year :

A
1927
B
1934
C
1950
D
1982

Question 106Single Answer

In a leveling survey work, the first staff reading taken in a staff station after shifting the instrument and the last staff reading taken to a staff sation before the instrument in shifted are, respectively :

A
back sight and intermediate sight
B
intermediate sight and back sight
C
back sight and fore sight
D
fore sight and back sight

Question 107Single Answer

Which of the following Indian Standard Codes provides conservatively imposed loads for buildings and structures ?

A
IS 875 (part 4) – 1987
B
IS 875 (part 1) – 1987
C
IS 875 (part 3) – 1987
D
IS 875 (part 2) – 1987

Question 108Single Answer

Activity of soil is ratio of the plasticity index to :

A
percentage of compressive strength
B
percentage by weight of clay fraction
C
liquidity index
D
percentage of sensitivity

Question 109Single Answer

Kor watering in irrigation is defined as :

A
the first watering which is given to seeds sown in the plot for germination
B
the first watering which is given to a crop when the crop is a few centimeters high
C
the first watering which is given to a crop before transplanting
D
the first watering which is given to a plot when the crop is transplanted

Question 110Single Answer

What is a SI unit for dynamic viscosity ?

A
Pascal second
B
Pascal
C
Stoke
D
Newton

Question 111Single Answer

Arrange the following building materials in the increasing order of density of materials .
Granite, Steel, River sand, Water

A
Water, River sand, Steel, Granite
B
River sand, Granite, Water, Steel
C
River sand, Water, Granite, Steel
D
Water, River sand, Granite, Steel

Question 112Single Answer

The bearing of a line AB is 150^o15' and the angle ABC between line AB and BC is 110^o30' as shown in the given figure .

What is the bearing of line BC ?

A
440^o45'
B
80^o45'
C
79^o15'
D
330^o15'

Question 113Single Answer

Select the correct statement with respect to a slow sand filter :

A
The filtering medium has effective size 0.45 to 0.7 mm, uniformity coefficient 1.3 to 1.7, multiple graded layers of sand with bacteria and odour removal
B
The rate of filtration is in the range of 100 - 150 m³/m²/day
C
The effective size of sand particles shall be 0.15 to 0.3 mm, and their uniformity coefficient shall be preferably below 3
D
Backwashing daily or on alternate days is necessary for cleaning

Question 114Single Answer

What will be the carrying capacity of a horizontal rectangular channel 4 m wide, conveying a discharge of 1 cumecs per meter width of channel ?

A
4.000 m³/s
B
2.085 m³/s
C
1.000 m³/s
D
8.000 m³/s

Question 115Single Answer

Select the correct option with regard to the following statements (S1, S2) pertaining to consolidation in soils :
S1: A soil is termed as normally consolidated, if the present effective orver burden pressure is less than maximum to which the soil was ever been subjected to in the past .
S2: The large the value of co - efficient of consolidation, the shorter it takes for full consolidation to occur .

A
S1 is true and S2 is false
B
Both S1 and S2 are false
C
Both S1 and S2 are true
D
S1 is false and S2 is true

Question 116Single Answer

A real fluid in which the shear stress is directly proportional to the velocity gradient is known as :

A
non - newtonian fluid
B
newtonian fluid
C
ideal fluid
D
plastic fluid

Question 117Single Answer

An airport runway fill needs 8,50,000 m³ of soil compacted to void ratio of 0.7. The required soil is to be taken from a borrow pit having an in situ void ratio of 0.8. If the transportation cost is Rs.10 per m³, estimated cost for the filling work is (in Rs.) :

A
82,00,000
B
90,00,000
C
50,00,000
D
85,00,000

Question 118Single Answer

If p is internal pressure, d is diameter and t is thickness of wall for a thin cylindrical shell, then the value of hoop stress will be :

A
pt/4d
B
pd/4t
C
pd/2t
D
td/4p

Question 119Single Answer

As per IS 800 : 2007, in the design of beams/plate girders, when the web of a member acting alone is inadequate, different types of stiffeners are provided. Match the type of stiffeners provided in List 1 with the requirement to be satisfied by them in List 2 .
(Use the Code in the lists for matching)
List 1 List 2
B. Intermediate transverse wed stiffener 1. Provide local reinforcement to wed under shear and bearing
C. Load carrying stiffiener 2. Improve the buckling strength of a slender Web due to shear
D. Bearing stiffener 3. Prevent local buckling of web due to concentrated loading
E. Diagonal stiffener 4. Prevent local crushing of web due to concentrated loading

A
B - 3, C - 2, D - 4, E - 1
B
B - 4, C - 3, D - 1, E - 2
C
B - 2, C - 3, D - 4, E - 1
D
B - 4, C - 3, D - 2, E - 1

Question 120Single Answer

A canal was designed for a full supply discharge of 60 cumee. The average supply discharge in the canal is 40 cumee. The capacity factor of the cannal is :

A
6.0
B
4.00
C
0.67
D
0.45

Question 121Single Answer

Sewers must be checked for minimum velocities at their minimum hourly flows which is equal to :

A
1/4 average daily flows
B
1/2 average daily flows
C
average daily flows
D
1/3 average daily flows

Question 122Single Answer

What is the permissible limit of organic mater present in water for mixing concrete as per IS 456 - 2000 ?

A
200 mg/ l
B
3000 mg/ l
C
2000 mg/ l
D
400 mg/ l

Question 123Single Answer

A horizontal pipeline AB of diameter d cpmveus water, flowing from A to B. The U - tube manometer with mercury as manometric liquid can be used for the measurement of :

A
difference in the total energy between two points A and B
B
difference in the pressure head between two points A and B
C
difference in the velocity between the points A and B
D
difference in the kinetic head at the two points A and

Question 124Single Answer

A cantilever of beam span l is fixed at one end, the other end resting freely on the middle of a simply supported cross-beam of the same span and section. If the cantilever beam is now loaded with a uniform load of w per unit length, find the reaction at the free end offered by the cross beam.

Question 125Single Answer

Select the INCORRECT obstacle in chaining in a chain survey:

A
Obstracle to ranging only
B
Obstracle to chanining only
C
Obstracle to plotting
D
Obstracle to chanining and ranging

Question 126Single Answer

The basis for classification of ordinary Portland cement (OPC) as grade 33, 43 and 53 as per IS 10262 is :

A
28 days compressive strength
B
fineness value and setting time
C
soundness value
D
setting time

Question 127Single Answer

The mass of a chunk of moist soil is 20 kg and its dry density is 1500 kg/m³. What is the void ratio of the soil if the specific gravity is 2.50 and density of water is 10000 kg/m³

A
66.67%
B
72.35%
C
44.45%
D
56.67%

Question 128Single Answer

The maximum effective slenderness ratio for the compression flange of a steel beam against lateral torsional bucking as per IS 800 - 2007 is :

A
400
B
180
C
250
D
300

Question 129Single Answer

As old building has a future life of 15 years. The rate of interest on capital is 7%. If the coefficient of annual sinking fund is 0.43, then what will be value of year's purchase?

A
4
B
3
C
2.36
D
2

Question 130Single Answer

The value used for the prevention of reversal of flow in a pipeline is :

A
an air value
B
a check
C
a scour value
D
a butterfly value

Question 131Single Answer

In earthquake resistant design, response reduction factor (R) for steel special moment resisting frame (SMF) design as per IS 800 : 2000 is :

A
1.5
B
5.0
C
1.0
D
2.5

Question 132Single Answer

In mix design for M25 concrete, the assumed standard deviation for estimation of target mean strength of concrete mix, as recommended by IS 456 : 2000 is (in N/mm²) :

A
5.0
B
4.5
C
3.5
D
4.0

Question 133Single Answer

Which of the following CANNOT be considered as a hard surface lining of cannal ?

A
Boulder lining
B
Soil cement lining
C
Asphaltic concrete lining
D
Plaster lining

Question 134Single Answer

The following radings were obtained during differential leveling.
Reduced Level (RL) of point A is 240.000 m. The fore sight and back sight between points A and TPI in 1.420 m and 2.024 m, respectively. Fore sight and back sight between points TP1 and TP2 is 2.100 m and 1.986 m, respectively. The back sight from B is 1.722 m. These are marked on the givenfigure. What is the RL at turning point – 2 (TP2)? All values are in meteres.

A
242.024
B
241.202
C
240.604
D
240.490

Question 135Single Answer

Which of the following actions is NOT a permanent adjustment in case of trasit theodolite ?

A
Axis of the telescope levewl adjusted to paralled to the line of collimation
B
Axis of the plate level adjusted to perpendicular to vertical axis
C
Bringing the vertical axis of the theorolite exactly over the station mark
D
Horizontal axis is perpendicular to vertical axis when the instrument is levelled

Question 136Single Answer

Which of the following actions is NOT a permanent adjustment in case of trasit theodolite ?

A
Axis of the telescope levewl adjusted to paralled to the line of collimation
B
Axis of the plate level adjusted to perpendicular to vertical axis
C
Bringing the vertical axis of the theorolite exactly over the station mark
D
Horizontal axis is perpendicular to vertical axis when the instrument is levelled

Question 137Single Answer

The ability of a material in endure alternate wet and dry conditions for a long period without considerable deformation and loss of mechanical strength is called :

A
chemical resistance
B
fire resistance
C
weathering resistance
D
frost resistance

Question 138Single Answer

A newly built hose is let out for a rent of Rs. 1,000 per month inclusive of all taxes. If outgoings are at 20% of the gross rent and expected rate of return is 10%, what is the capital value by the rental method of valuation ?

A
Rs. 99,600
B
Rs. 1,12,300
C
Rs. 87,600
D
Rs. 96,000

Question 139Single Answer

What is the approximate composition of silicon dioxide (SiO²) present in ordinary Portland cement ?

A
60 - 67%
B
17 - 25%
C
40 - 50%
D
3 - 8%

Question 140Single Answer

The following statements (C1, C2, C3, C4) pertain in the characteristics of different type of canals. Which of the following statements is/are correct ?
C1 : A contour canal can irrigate command areas on both the banks.
C2 : If is possible to constract a contour canal with banks on one side only
C3 : In the case of a ridge canal, the number of cross drainage works are maximum.
C4 : Side slope canal is aligned roughly at right angles to the ground contours.

A
C1 only
B
C2 and C4 only
C
C1, C3 and C4 only
D
C1 and C3 only

Question 141Single Answer

In an incompressible static flaid column, the rate of increase of pressure in the vertical direction is equal to weight density of fluid at that point. Which of the following is the law for this statements.

A
Bernoulli's law
B
Viscosity law
C
Hydrostatic law
D
Pascal's law

Question 142Single Answer

A construction firm has estimate a net annual rent of Rs. 90,000 on a building, at the prevailing annual rate of interest of 9%. If the annual interest rate is revised to 5%, determine the increase in the capitalized value of the property.

A
Rs. 22,50,000
B
Rs. 8,00,000
C
Rs. 10,00,000
D
Rs. 18,00,000

Question 143Single Answer

. Which constituent in cemnt is to be kept minimum to avoid a sulphate attack ?

A
C₂A
B
C₃S
C
C₃A
D
C₂ AF

Question 144Single Answer

The saturation capacity, field capacity and the permanent wilting point of a soil are 47%, 27% and 14%, respectively. The available moisture for the crops grown in the soil is:

A
13%
B
27%
C
20%
D
33%

Question 145Single Answer

On a right angle two - lane road intersection with two-way traffic, the total number of potential conflict points are:

A
24
B
44
C
18
D
32

Question 146Single Answer

Which of the following methods is NOT used for finding deflection of beam ?

A
Moment area method
B
Castigliano's method
C
strain energy method
D
Moment distribution method

Question 147Single Answer

Two centrifugal pumps P and R are available for use in a pipe flow system and their head - discharge characteristics are as follows.

The following statements (S1, S2 and S3) pertain to the head and discharge values during actual operation. Neglect looses in the system. Which of the following statements are correct ?
S1 : When the two pumps P and R are connected in paralled, the discharge is 0.36 cumecs corresponding to a head 35 m.
S2 : When the two pumps P and R are connected in paralled, the discharge is 0.36 cumecs corresponding to a head 70 m.
S3 : When the two pumps P and R are connected in series.
The discharge is 0.3 cumecs corresponding to a head 46 m.

A
S2 and S3
B
S2 only
C
S1 and S3
D
S1 and S2

Question 148Single Answer

As per IS 1742 - 1983 normally a sewer shall be designed for discharging ____ times the dry-weather flow flowing half-full with a minimum self-cleansing velocity of ____.

A
three; 0.75m/s
B
four; 1.75m/s
C
two; 0.5m/s
D
five; 2.4m/s

Question 149Single Answer

The determination of shear strength of a soft staturated clay deposit in the filed can be done by :

A
the tri - axial test
B
the vane shear test
C
the unconfined compression test
D
the direct shear test

Question 150Single Answer

The total unit weight of the glacial outwash soil is 5 kN/m3. The water content in the soil is 17%. Find dry unit weight :

A
4.27 kN/m³
B
0.29 kN/m³
C
3.40 kN/m³
D
6.27 kN/m³

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