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Latest ISRO Scientist CE Civil Engineering Exam Question (Objective Questions), MCQ in English

Subjects : Civil Engineering

Question Bank ISRO Scientist Civil Engineering Exam - English
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Civil Engineering

Question 1Single 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 ?
  1. A
    11 to 15 mm
  2. B
    8 to 10 mm
  3. C
    15 to 17 mm
  4. D
    5 to 7 mm
Question 2Single 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 (QA to QB) .
  1. A
  2. B
  3. C
    1
  4. D
Question 3Single Answer
Select the correct statement with respect to an over - reinforced cement concrete section under the working stress method .
  1. A
    The compressive stress in steel reaches the allowable limit before the maximum tensile stress in concrete reaches the allowable limit
  2. B
    Tensile steel stress and maximum compressive stress in concrete simultaneously reach their allowable limits
  3. C
    The allowable limiting stress is reached in concrete before the steel stress reaches the limiting value
  4. D
    The tensile stress in steel reaches the allowable limit before the maximum compressive stress in concrete reaches the allowable limit
Question 4Single 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
  1. A
    0.5 L
  2. B
    0.85 L
  3. C
    2 L
  4. D
    0.75 L
Question 5Single Answer
What is the principle of plane surveying ?
  1. A
    Working from part to whole
  2. B
    Working from point to area
  3. C
    Working from angle to volume
  4. D
    Working from whole to part
Question 6Single 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 :
  1. A
    100 m
  2. B
    1000 m
  3. C
    600 m
  4. D
    150 m
Question 7Single 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 :
  1. A
    20
  2. B
    25
  3. C
    15
  4. D
    10
Question 8Single Answer
What is the effect of fly ash in concrete ?
  1. A
    Reduces the secondary hydration process
  2. B
    Increases the heat of hydration
  3. C
    Increases the amount of air entrainment
  4. D
    Reduces the heat of hydration
Question 9Single 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 :
  1. A
    M 20 and M 30
  2. B
    M 20 and M 25
  3. C
    M 22 and M 40
  4. D
    M 15 and M 25
Question 10Single Answer
Identify the property that changes as a function of the geometrical dimensions of a section in structural materials :
  1. A
    Mass density
  2. B
    Moment of inertia
  3. C
    Poission’s ratio
  4. D
    Modulus of elasticity
Question 11Single 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 ?
  1. A
    120
  2. B
    140
  3. C
    70
  4. D
    60
Question 12Single Answer
No deduction is made in the quantity estimation for plastering work in cement mortar for openings having size up to :
  1. A
    0.5 m2
  2. B
    1.0 m2
  3. C
    3 m2
  4. D
    0.75 m2
Question 13Single Answer
What is the height of slump cone mould used for testing the workability of the concrete ?
  1. A
    20 cm
  2. B
    10 cm
  3. C
    30 cm
  4. D
    25 cm
Question 14Single 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
  1. A
    Statements S1 is true and Statement S2 is false
  2. B
    Both statements S1 and S2 are false
  3. C
    Statements S1 is false and Statement S2 is true
  4. D
    Both statements S1 and S2 are true
Question 15Single Answer
If the quadrantal bearing of a line AB is S 31'35' E, then its whole circle bearing is equal in :
  1. A
    121o25'
  2. B
    148o25'
  3. C
    58o25'
  4. D
    211o25'
Question 16Single Answer
The overflowing sheet of water on a weir is called :
  1. A
    creek
  2. B
    crest
  3. C
    limp
  4. D
    nappe
Question 17Single 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 ?
  1. A
    10 - 25 mm
  2. B
    25 - 50 mm
  3. C
    0 - 10 mm
  4. D
    50 - 100 mm
Question 18Single Answer
Which of the following is Kharif season in India ?
  1. A
    March / April to June / July
  2. B
    December / January to April / May
  3. C
    May / June to October / November
  4. D
    October / November to April / May
Question 19Single Answer
The estimated value of a built - up property at the end of its useful life without dismantled is called :
  1. A
    market value
  2. B
    book value
  3. C
    scrap value
  4. D
    salvage value
Question 20Single Answer
The amount of cement required for 100 m2 area, of damp proof course with 2.5 cm thinkness, in with proportion of 1: 2 : 4 (cement : sand : aggregate) will be :
  1. A
    2.5 m2
  2. B
    0.55 m2
  3. C
    1.10 m2
  4. D
    0.25 m2
Question 21Single Answer
Select the correct statement related to increasing the carbon content in steel from 0.2 to 0.9 percent .
  1. A
    Increasing the carbon content in steel decreases the yield stress and increases the ductility
  2. B
    Increasing the carbon content in steel increases the yield stress and reduces the ductility
  3. C
    Increasing the carbon content in steel decreases the yield stress and does not affect the ductility
  4. D
    Increasing the carbon content in steel does not have any effect on the yield stress or ductility
Question 22Single Answer
Which of the following laws states that pressure or intensity of pressure at a point is static fluid is equal in all directions ?
  1. A
    Newton's law
  2. B
    Pascal's law
  3. C
    Darcy's law
  4. D
    Hydrostatic law
Question 23Single 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
  1. A
    Sample A : Inactive; Sample B : Active
  2. B
    Sample A : Active; Sample B : Normal
  3. C
    Sample A : Active; Sample B : Inactive
  4. D
    Sample A : Normal ; Sample B : Inactive
Question 24Single Answer
Which of the following compounds of cement is responsible for early strength ?
  1. A
    C4AF
  2. B
    C3S
  3. C
    C3A
  4. D
    C2A
Question 25Single Answer
According to SP : 27 - 1984, the thickness of slab or RC slab shall be measured to the nearest of :
  1. A
    0.0002 m
  2. B
    0.005 m
  3. C
    0.0001 m
  4. D
    0.01 m
Question 26Single 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.
  1. A
    PP : Ozone, Photochemical smog, Aerosol/mist, Peroxy – Acetyl - Nitrate
    SP : Carbon monoxide, Particulate matter, Nitrogen oxides, Hydrocarbons, Sulphur dioxide
  2. B
    SP : Carbon monoxide, Particulate matter, Aerosol/mist, Peroxy - Acetyl - Nitrate
    SP : Nitrogen oxides, Hydrocarbons, Sulphur dioxide, Ozone, Photochemical smog
  3. C
    PP : Carbon monoxide, Particulate matter, Hydrocarbons, Sulphur dioxide
    SP : Ozone, Photochemical smog, Aerosol/mist, Peroxy - Acetyl - Nitrate
  4. D
    PP : Ozone, Photochemical smog, Carbon monoxide, Particulate matter, Nitrogen oxides
    SP : Aerosol/mist, Peroxy - Acetyl - Nitrate, Hydrocarbons, Sulphur dioxide
Question 27Single Answer
Saturated unit weight of soil is the ratio of : 
  1. A
    bulk unit weight of a soil when it is fully saturated
  2. B
    saturated bulk unit weight to total void
  3. C
    total void to saturated bulk unit weight
  4. D
    total void to saturated bulk unit weight
Question 28Single Answer
Identify the test to be conducted for the determination of the modulus of subgrade reaction in pavement design .
  1. A
    Plate bearing test
  2. B
    Triaxial test
  3. C
    CBR test
  4. D
    Direct shear test
Question 29Single 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) :
  1. A
    1.2
  2. B
    1.8
  3. C
    1.68
  4. D
    1.92
Question 30Single Answer
Which of the following can be considered as a taking off point in road planning in India ?
  1. A
    Lucknow plan
  2. B
    Delhi plan
  3. C
    Bombay plan
  4. D
    Nagpur plan
Question 31Single 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 .
  1. A
    Statement 1 is true but Statement 2 is false
  2. B
    Statement 1 is false but Statement 2 is true
  3. C
    Both statement 1 and 2 are true
  4. D
    Both statement 1 and 2 are false
Question 32Single 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 :
  1. A
    2
  2. B
    3
  3. C
    5
  4. D
    4
Question 33Single Answer
The soils transported and deposited by a river or a stream care called :
  1. A
    aeolian soils
  2. B
    alluvial soils
  3. C
    lacustrine soils
  4. D
    marine soils
Question 34Single 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 ?
  1. A
    0.155 m
  2. B
    0.225 m
  3. C
    0.100 m
  4. D
    0.552 m
Question 35Single 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).
  1. A
    T : Vertical collimation error, Horizontal collimation error
    P : Centering error, Eccentricity error
  2. B
    T : Centering error, Horizontal collimation error, Eccentricity error
    P : Vertical collimation error
  3. C
    T : Eccentricity error, Horizontal collimation error
    P : Centering error, Vertical collimation error, Eccentricity error
  4. D
    T : Centering error
    P : Vertical collimation error, Horizontal collimation error, Eccentricity error
Question 36Single Answer
According to IS 800 : 2007, identify the property which is considered as a mechanical property of structural steel, important in design .
  1. A
    Unit mass
  2. B
    Maximum percent elongation on a standard gauge length
  3. C
    Co - efficient of thermal expansion
  4. D
    Poisson ration
Question 37Single Answer
Which of the following methods is NOT used for measuring air content in fresh concrete ?
  1. A
    Blaine air permeability method
  2. B
    Gravimetric method
  3. C
    Pressure method
  4. D
    Volumetric method
Question 38Single Answer
Which of the following methods is NOT used for the calculation of depreciation of a structure ?
  1. A
    Straight line method
  2. B
    Quantity survey method
  3. C
    Geometric projection method
  4. D
    Declining balance method
Question 39Single Answer
The failure of an over reinforced concrete beam is due to :
  1. A
    compression failure
  2. B
    mid failure
  3. C
    shear failure
  4. D
    tension failure
Question 40Single Answer
In which type of estimate is 'Court yard' NOT considered ?
  1. A
    Unit rate estimate
  2. B
    Plinth area estimate
  3. C
    Lump sum estimate
  4. D
    Cub rate estimate
Question 41Single 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
  1. A
    M-3, N-4, O-2, P-1
  2. B
    M-3, N-4, O-1, P-2
  3. C
    M-4, N-3, O-1, P-2
  4. D
    M-2, N-4, O-1, P-3
Question 42Single 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 :
  1. A
    120 kNm
  2. B
    180 kNm
  3. C
    144 kNm
  4. D
    150 kNm
Question 43Single 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 :
  1. A
    14.54 kN and 28 kN
  2. B
    17.8 kN and 48 kN
  3. C
    20 kN and 24 kN
  4. D
    18 kN and 21 kN
Question 44Single Answer
What will be the percentage of passing aggregate for the grading zone 1 of sieve size 1.18 mm ?
  1. A
    100%
  2. B
    10% - 20%
  3. C
    7% - 25%
  4. D
    30% - 70%
Question 45Single Answer
The annual or periodical payment for repayment of the capital amount invested on a property for a specified period is known as :
  1. A
    depreciation
  2. B
    obsolescence
  3. C
    amortization
  4. D
    annuity
Question 46Single 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 :
  1. A
    Flood walls
  2. B
    Guide banks
  3. C
    Groynes
  4. D
    Levees
Question 47Single Answer
The test commonly to determine the grade of bitumen in terms of its hardness is :
  1. A
    the penetration test
  2. B
    the ductility test
  3. C
    the softening point test
  4. D
    the flash and fire point test
Question 48Single 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) .
  1. A
    24,000
  2. B
    20,000
  3. C
    18,000
  4. D
    28,000
Question 49Single Answer
Which type of odour characteristic is NOT used for classifying odour of a given water sample as per IS 3025 (part-5) 1983 ?
  1. A
    Degree of sweetness
  2. B
    Degree of turbidity
  3. C
    Degree of pungency
  4. D
    Degree of smokiness
Question 50Single 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 ?
  1. A
    0
  2. B
    2
  3. C
    3
  4. D
    1
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