Question Bank
MAHAGENCO Engineer Exam (Civil Engineering) - English
Duration: 120 ยท Questions: 120 ยท Max Marks: 120 ยท Language: 1
Civil Engineering
1
One bag of Portland cement, 50 kg in weight, would normally have a bulk volume of
2
AsCu, a preservative for wood, developed by the Forest Research Institute, Dehradun, comprises of chemicals:
3
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?
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?
4
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
5
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
6
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?
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?
7
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?
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?
8
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?
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?
9
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?
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?
10
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?
11
Which IS code is used for classification of timber for seasoning purposes?
12
Consider the following with regard to the application of preservation of timber:
1.Increase in the life span of the member
2.Increase in the strength of the timber
3.Removal of moisture
4.Prevention of growth of fungi by killing them
Which of the above are correct?
1.Increase in the life span of the member
2.Increase in the strength of the timber
3.Removal of moisture
4.Prevention of growth of fungi by killing them
Which of the above are correct?
13
The plies in plywood are so placed that the grains of each ply are
14
Which of the following is an ODD one as regards ‘requirement of good brick-earth’?
15
The compressive strength of heavy-duty bricks, as per IS : 2980-1962, should not be less than
16
Consider the following statements:
1.Brickwork will have high water tightness.
2.Brickwork is preferred for monument structures.
3.Bricks resist fire better than stones
4.Bricks of good quality shall have thin mortar bonds.
Which of the above statements are correct?
1.Brickwork will have high water tightness.
2.Brickwork is preferred for monument structures.
3.Bricks resist fire better than stones
4.Bricks of good quality shall have thin mortar bonds.
Which of the above statements are correct?
17
Consider the following statements:A good soil for making bricks should contain
1.30% alumina
2.10% lime nodules
3.Only small quantity of iron oxides
4.15% magnesia
Which of the above statements are correct?
1.30% alumina
2.10% lime nodules
3.Only small quantity of iron oxides
4.15% magnesia
Which of the above statements are correct?
18
Which compound of cement is responsible for strength of cement?
19
Which type of cement is recommended in large mass concrete works such as a dam?
20
Consider the following statements regarding ‘setting of cement’:
1.Low-heat cement sets faster than OPC.
2.Final setting time decides the strength of cement
3.Initial setting time of Portland Pozzollona is 30 minutes
4.Air-induced setting is observed when stored under damp conditions.
4.Addition of gypsum retards the setting time.
Which of the above statements are correct?
1.Low-heat cement sets faster than OPC.
2.Final setting time decides the strength of cement
3.Initial setting time of Portland Pozzollona is 30 minutes
4.Air-induced setting is observed when stored under damp conditions.
4.Addition of gypsum retards the setting time.
Which of the above statements are correct?
21
Consider the following statements regarding ‘strength of cement’:
1.Strength test on cement is made on cubes of cement-sand mix.
2.Water to be used for the paste is 0.25 P, where P is the water needed for normal consistency.
3.The normal consistency is determined on Le Chatelier’s principle.
4.Cubes are cast in two layers in leak-proof moulds further compacted in each layer by vibration on a machine.
Which of the above statements are correct?
1.Strength test on cement is made on cubes of cement-sand mix.
2.Water to be used for the paste is 0.25 P, where P is the water needed for normal consistency.
3.The normal consistency is determined on Le Chatelier’s principle.
4.Cubes are cast in two layers in leak-proof moulds further compacted in each layer by vibration on a machine.
Which of the above statements are correct?
22
Which of the following ingredients refer to binding material of mortar?
1.Cement
2.Lime
3.Sand
4.Ashes
Select the correct answer using the code given below.
1.Cement
2.Lime
3.Sand
4.Ashes
Select the correct answer using the code given below.
23
Consider the following statements:
1.Bricks in masonry are bound by mortar.
2.Mortars make brick damp-proof.
3.Strength of brick in masonry is improved by plastering.
4.Addition of lime improves workability.
5.Marine construction needs sulphate-resistant cement mortar.
Which of the above statements are relevant for ‘cement mortar’?
1.Bricks in masonry are bound by mortar.
2.Mortars make brick damp-proof.
3.Strength of brick in masonry is improved by plastering.
4.Addition of lime improves workability.
5.Marine construction needs sulphate-resistant cement mortar.
Which of the above statements are relevant for ‘cement mortar’?
24
Consider the following parameters of concrete:
1.Impermeability
2.Compactness
3.Durability
4.Desired consistency
5.Workability
Which of the above parameters are relevant for ‘water-cement ratio’?
1.Impermeability
2.Compactness
3.Durability
4.Desired consistency
5.Workability
Which of the above parameters are relevant for ‘water-cement ratio’?
25
Consider the following statements:Presence of Na2O and K2O in concrete leads to
1.Expansive reaction in concrete
2.Cracking of concrete
3.Disruption of concrete
4.Shrinkage of concrete
Which of the above statements are correct?
1.Expansive reaction in concrete
2.Cracking of concrete
3.Disruption of concrete
4.Shrinkage of concrete
Which of the above statements are correct?
26
The maximum total quantity of dry aggregate by mass per 50 kg of cement, to be taken as the sum of the individual masses of fine and coarse aggregates (kg), for M20 grade of concrete is
27
Absorption capacity of an aggregate refers to the difference expresses in appropriate proportion in water content between
28
Consider the following statements concerning ‘elasticity of concrete’:
1.Stress-strain behavior of concrete is a straight line up to 10% ultimate stress.
2.Strain determination is obtained from tangent modulus.
3.Modulus of elasticity of concrete is also called as secant modulus.
Which of the above statements are correct?
1.Stress-strain behavior of concrete is a straight line up to 10% ultimate stress.
2.Strain determination is obtained from tangent modulus.
3.Modulus of elasticity of concrete is also called as secant modulus.
Which of the above statements are correct?
29
Consider the following statements :The addition of CaCl2 in concrete results in
1.Increased shrinkage
2.Decreased setting time
3.Decreased shrinkage
4.Increased setting time
Which of the above statements are correct?
1.Increased shrinkage
2.Decreased setting time
3.Decreased shrinkage
4.Increased setting time
Which of the above statements are correct?
30
Which of the following statements are correct ?
1.Knots in a tree affect the continuity of fibres.
2.Nail knots do not influence the strength of timber.
3.Druxiness of wood is not a defect.
4.Tall trees with twisted fibers give good timber for poles.
1.Knots in a tree affect the continuity of fibres.
2.Nail knots do not influence the strength of timber.
3.Druxiness of wood is not a defect.
4.Tall trees with twisted fibers give good timber for poles.
31
Excrescences in wood are
1.Defects found in trees
2.Formed due to injuries inflicted on trees when they are growing
3.Defects which render wood suitable as firewood only
1.Defects found in trees
2.Formed due to injuries inflicted on trees when they are growing
3.Defects which render wood suitable as firewood only
32
What treatment is adopted for making timber fire-resistant?
33
Deterioration of structure of timber due to dry rot is:
1.Caused by fungi
2.Due to dry-spell after heavy rains
3.Due to attack of termites
4.ndicated by surface stripes on scantlings
1.Caused by fungi
2.Due to dry-spell after heavy rains
3.Due to attack of termites
4.ndicated by surface stripes on scantlings
34
Alternate wetting and drying of timber :
1.Results in shrinkage and swelling
2.Brings about wet rot onset
3.Increases the durability
4.Causes transmission of spores from germination
1.Results in shrinkage and swelling
2.Brings about wet rot onset
3.Increases the durability
4.Causes transmission of spores from germination
35
As per I.S. classification, the minimum compressive strength of a first class brick should be
36
When provided with alternating courses of (a) all headers and (b) all stretchers, the front elevation of such brick masonry is designated as
37
I.S. code specifies that the compressive strength of brick shall be determined by keeping the brick:
1.On edge
2.On bed
3.After soaking in water for 2 hrs
4.After soaking in water for 24 hrs
1.On edge
2.On bed
3.After soaking in water for 2 hrs
4.After soaking in water for 24 hrs
38
Soundness test of cement is carried out to determine its
39
The objectives of producing cement include:
1.Incorporating industrial wastes
2.Increasing free lime
3.Increasing fineness
4.Saving energy needed in the process
1.Incorporating industrial wastes
2.Increasing free lime
3.Increasing fineness
4.Saving energy needed in the process
40
A mild steel rod tapers uniformly from 24 mm mm dia. over its length of 400 mm. The rod when held vertical is subjected to an axial tensile load of 12 kN. E = 2 × 105 N/mm2. The extension of the rod in mm would be:
41
Two different liquids are flowing through different pipes of the same diameter. In the first pipe, the flow is laminar with centerline velocity,Vmax.1,Whereas in the second pipe, the flow is turbulent. For turbulent flow, the average velocity is 0.82 times the centerline velocity,vmax.2 . For equal volumetric flow rates in both the pipes, the ratio Vmax.1/Vmax.2(up to two decimal place) is_____.
42
Poisson’s ratio of a material is 0.3. Then the ratio of Young’s modulus to bulk modulus is
43
For a gas phase cracking reaction A→B+C at 300รขโฦ , the Gibbs free energy of the reaction at this temperature is รขหโ G°= -2750J/mol . The pressure is 1 bar and the gas phase can be assumed to be ideal. The universal gas constant =8.314J/mol. K. The fractional molar conversion of A at equilibrium is________.
44
Which of the following statements are correct ?
1.In a ductile material elastic deformation is more predominant than plastic one.
2.Brittleness is not an absolute property of a metal.
3.Rate of loading has no influence in changing the behavior of a metal from ‘ductile’ to ‘brittle’ at low temperatures
4.Under hydrostatic compression, a brittle metal may change into a ductile one.
1.In a ductile material elastic deformation is more predominant than plastic one.
2.Brittleness is not an absolute property of a metal.
3.Rate of loading has no influence in changing the behavior of a metal from ‘ductile’ to ‘brittle’ at low temperatures
4.Under hydrostatic compression, a brittle metal may change into a ductile one.
45
The total deflection of a structure when subjected simultaneously to different sets of loading is equal to the sum of the deflections under each such set of loads as if acting separately on the structure. Which one the following justifies this statement?
46
A rectangular bar of cross-sectional area a is subjected to an axial tensile load P. The maximum shear stress will occur on a plane at X° to any normal cross-section where X° is
47
A solid circular shaft has been subjected to a pure torsion moment. The ratio of maximum shear stress to maximum normal stress at any point would be
48
Which of the following statements are correct?
1.All load carrying members transmit load through basic modes of tension, compression, torsion and shear only.
2.Beams carry transverse loads.
3.Combined loading is a complicated loading.
4.Nature of internal forces decides the aspect of combines loading.
1.All load carrying members transmit load through basic modes of tension, compression, torsion and shear only.
2.Beams carry transverse loads.
3.Combined loading is a complicated loading.
4.Nature of internal forces decides the aspect of combines loading.
49
Identify the WRONG statement amongst the following:
50
Which of the following statements are correct?
1.Experimental results on thin-walled tubes show that maximum normal stress theory is valid.
2.Normal-stress theory is valid in case of brittle materials.
3.In case of pure shear, St. Venant’s theory is more valid than other theories.
4.Tresca’s theory is very closely substantiated by experimental results.
5.In maximum stress theory, the yield locus is a hexagon.
1.Experimental results on thin-walled tubes show that maximum normal stress theory is valid.
2.Normal-stress theory is valid in case of brittle materials.
3.In case of pure shear, St. Venant’s theory is more valid than other theories.
4.Tresca’s theory is very closely substantiated by experimental results.
5.In maximum stress theory, the yield locus is a hexagon.
51
A thin cylindrical shell made of mild steel plate is 1000 mm in diameter. It is to be subjected to an internal pressure of 2 N/mm2. If the material yields at 200N/mm2, the thickness of the plate in mm on the basis of Rankine’s theory of failure with assuming a factor of safety of 3 would be
52
Which of the following can change if only the catalyst is changed for a reaction system?
53
Which of the following loads should be applied on a simply supported beam, so that the shear force is constant throughout its span?
54
A simply supported rolled steel joist of I-section has flange width 250 mm and overall depth 600 mm. Its moment of inertia IXX = 12 × 106 mm4. The steel joist is used as a beam over a simply supported span of 6m. It carries a load of 40 kN/m including its self weight throughout the span. The maximum stress induced in the beam in N/mm2 due to bending would be
55
Which of the following terms represents the torque that produces a twist of one radian in a shaft of unit length?
56
A 60 mm dia. shaft is subjected to a torque of 6 kN-m. C = 8 × 104 N/mm2. The maximum shear stress induced in the shaft in N/mm2will be
57
A water main 160 cm dia. contains water at a pressure head of 200m. Take weight of water to be 1000 kg/m3. The thickness of the metal shell required for the water main, given that the maximum permissible stress in the metal is 400kg/cm2, will be
58
The radial splits which are wider on the outside of the log and narrower towards the pith are known as
59
Consider the following distinguishing characteristics of hardwood:
1.They have distinct annular rings.
2.They are not resinous.
Which of these characteristics of hardwood is/are correct?
1.They have distinct annular rings.
2.They are not resinous.
Which of these characteristics of hardwood is/are correct?
60
Consider the following statements on the specific gravity of wood:
1.It is always greater than 2.
2.It is less than 1.
3.It is not dependent upon temperature and equilibrium moisture content.
Which of these statements are correct?
1.It is always greater than 2.
2.It is less than 1.
3.It is not dependent upon temperature and equilibrium moisture content.
Which of these statements are correct?
Aptitude
1
In ruby laser, the stimulated emission is due to transition from
2
A direct current I flows along the length of an infinitely long straight thin walled pipe, then the magnetic field is
3
convex lens made of glass has focal length 0.15m in air. If the refractive index of glass is 3/2, and that of water is 4/3 the focal length of lens when immersed in water is
4
Two sources are said to be coherent if they produce waves
5
Three resistors 1 รขโยฆ, 2 รขโยฆ, 3รขโยฆ resistor a 3 V battery is connected. The current through 3 รขโยฆ resistor is -
6
In a common emitter amplifier the input signal is applied across
7
Adding detergents to water helps in removing dirty greasy stains. This is because
1. It increases greasy stains. This is because
2. It decreases the oil-water surface tension
3. It increases the viscosity of the solution
4. Dirt is held suspended surrounded by detergent molecules
1. It increases greasy stains. This is because
2. It decreases the oil-water surface tension
3. It increases the viscosity of the solution
4. Dirt is held suspended surrounded by detergent molecules
8
Choose the correct statement (a) for a cricket ball that is spinning clockwise through air
S1 : Statemlines of air are symmetric around the ball.
S2 : The velocity of air above the ball relative to it is larger than that below the ball.
S3 : The velocity of air above the ball relative to it is smaller than that below the ball.
S4 : There is a net upward force on the ball.
S1 : Statemlines of air are symmetric around the ball.
S2 : The velocity of air above the ball relative to it is larger than that below the ball.
S3 : The velocity of air above the ball relative to it is smaller than that below the ball.
S4 : There is a net upward force on the ball.
9
Ferromagnetic materials used in a transformer must have
10
According to Newton’s corpuscular theory, the speed of light is
11
10-6 M NaOH is diluted 100 times. The pH of the diluted base is
12
In the electrolysis of acidulated water, it is desired to obtain 1.12 cc of hydrogen per second under STP condition. The current to be passed is
13
The one which decreases with dilution is
14
Vapour pressure of pure ‘A’ is 70 mm of Hg at 25oC. It forms an ideal solution with ‘B’ in which mole fraction of A is 0.8. if the vapour pressure of the solution is 84 mm of Hg at 25oC, the vapour pressure of pure ‘B’ at 25oC is
15
A 6% solution of urea is isotonic with
16
In countries nearer to polar region, the roads are sprinkled with CaCl2. This is
17
A compound of ‘A’ and ‘B’ crystallises in a cubic lattice in which ‘A’ atoms occupy the lattice points at the corners of the cube. The ‘B’ atoms occupy the centre of each face of the cube. The probable empirical formula of the compound is
18
In electrophilic aromatic substitution reaction, the nitro group is meta directing because it
19
The best method for the conversion of an alcohol into an alkyl chloride is by treating the alcohol with
20
The carbon bond length in benzene is
21
The cash difference between the selling prices of an article at a profit of 4% and 6% is Rs. 3. The ratio of the two selling prices is:__________ ?
22
Which of the following numbers is irrational ?
23
356 x 936 – 356 x 836 = ?
24
Arrange in descending order: 5/8, 7/10, 3/4
25
What is (3^{4} times 9^{2}) ?
26
If 34X-2 = 729, then find the value of X.
27
Convert 0.6 into fraction ?
28
The no. plate of a bus had peculiarity. The bus number was a perfect square. It was also a perfect square when the plate numbers were reversed. The bus company had only five hundred buses numbered from 1 to 500. What was the number ?
29
If a and b are positive integers, such that ab = 125, then (a-b)a+b-4 = ?
30
If x*y = x2 + y2 – xy, then value of 9*11 is
31
Which is greater ?
32
If sum of two numbers is 42 and their product is 437, then find their difference.
33
Write the 44000 in Roman numerals
34
Convert 0.0909… into fraction ?
35
What is (98 times 102) ?
36
Which is smaller ?
37
Convert 0.5777… into fraction ?
38
Convert 0.81 into fraction ?
39
(63)2 – (12)2 =?
40
Which is greater ?
41
16.928 + 24.7582 
5.015 =?
5.015 =?42
Convert 0.75 into fraction ?
43
Which is greater ?
44
Two numbers are co-prime if their HCF is ?
45
Product of all factors of 10 is ?
46
How many real numbers exist between 2 and 3 ?
47
Which number is divisible by 11 ?
48
What is the unit digit of (7^{245}) ?
49
What is (64^{2/3}) ?
50
What is (125^{1/3}) ?
51
What is the rank of India in the ‘WIPO Global Innovation Index 2022’ ?
52
Who has been appointed as the new Attorney General for India ?
53
Which city is the host of the ‘Conference on International Day for Universal Access to Information’ ?
54
Which state is the host of the National SC-ST hub conclave organised by the Union MSME Ministry ?
55
‘Operation Garuda’, which was seen in the news, is associated with which organization ?
56
Who has been named as the only Indian on “Time magazine’s list of 100 emerging leaders’ in September 2022 ?
57
At which place, Adani Green Energy Ltd (AGEL) commissioned the World’s largest Wind-solar power plant on 29 September 2022 ?
58
World Maritime Day was observed on 29 September 2022. What was the theme of World Maritime Day 2022 ?
59
Which state is hosting the 36th National Games from 29 September 2022 ?
60
Which country has struck a partnership agreement with Pacific island nations on 29 September 2022 ?