Explore topic-wise MCQs in Civil Engineering.

This section includes 1888 Mcqs, each offering curated multiple-choice questions to sharpen your Civil Engineering knowledge and support exam preparation. Choose a topic below to get started.

1701.

In the cantilever beam shown in the figure, what is the percentage of bending moment at l/2 with respect to the maximum bending moment at the fixed support ?

A. 0.15
B. 0.2
C. 0.25
D. 0.3
Answer» D. 0.3
1702.

What is the permissible tensile stress is bolts used for column bases ?(Where fy is the yield stress of the steel)

A. 120 N/mm2
B. 150 N/mm2
C. 0.6 fy
D. 0.4 fy
Answer» B. 150 N/mm2
1703.

The distance between two bench marks is 1000 m. If during levelling, the total error due to collimation, curvature and refraction is found to be + 0.120 m, then the magnitude of the collimation error is

A. 0.00527 m
B. 0.0527 m
C. 0.527 m
D. 0.673 m
Answer» C. 0.527 m
1704.

A simply supported beam AB of span L is subjected to a concentrated load W at the centre C of the span. According to Mohr's moment area method, which one of the following gives the deflection under the load ?

A. Moment of the area of M/EI diagram between A and C taken about C.
B. Moment of the area of M/EI diagram between A and B taken about B.
C. Moment of the area of M/EI diagram between A and C taken about A.
D. Moment of the area of M/EI diagram between A and C taken about B.
Answer» D. Moment of the area of M/EI diagram between A and C taken about B.
1705.

If R is the radius of the main curve, θ the angle of deflection S the shift and L the length of the transition curve, then the total tangent length of the curve is given by

A. (R - S) tan θ/2 - L/2
B. (R + S) tan θ/2 - L/2
C. (R + S) tan θ/2 + L/2
D. (R - S) tan θ/2 + L/2
Answer» D. (R - S) tan Œ∏/2 + L/2
1706.

What is the use of a station pointer ?

A. For making soundings in water bodies
B. For plotting of soundings in harbour area
C. For marking sunken shipping hazards
D. For making tidal observations
Answer» C. For marking sunken shipping hazards
1707.

Consider the following statement :1. Hydraulic gradient required to initiate "quick" condition is independent of the ratio of volume of voids of solids in a soil mass.2. Initiation of piping under hydraulic structures can be prevented by increasing the length of flow path of water.3. Seepage pressure is independent of the coefficient of permeability. Of these statement :

A. 1, 2 and 3 are correct
B. 1 and 2 are correct
C. 1 and 3 are correct
D. 2 and 3 are correct
Answer» E.
1708.

The given figure shows gradually varied flow in an open channel with a beak in bed slope. Types of water surface profiles occurring from left to right are

A. H2 , S3
B. H2 , S2
C. H2 , M2
D. H3 , M2
Answer» C. H2 , M2
1709.

In cement concrete pavements, tie bars are installed in

A. expansion joints
B. contraction joints
C. warping joints
D. longitudinal joints
Answer» E.
1710.

A uniform simply supported beam is subjected to a clockwise moment at the left end. What is the moment required at the right end so that rotation of the right end is zero ?

A. 2 m
B. m
C. m/2
D. m/3
Answer» C. m/2
1711.

Consider the following assumptions :1. Failure occurs on a plane surface.2. Wall is smooth but not necessarily vertical.3. Failure wedge is a rigid body.Coulomb's theory of earth pressure is based on assumptions

A. 1, 2 and 3
B. 1 and 3
C. 1 and 2
D. 2 and 3
Answer» D. 2 and 3
1712.

In a diamond riveting, for a plate of width land rivet diameter 'd' the efficiency of the joint is given by

A. (b - d)/b
B. (b / 2d)/b
C. (b - d)/d
D. (b - 2d)/d
Answer» B. (b / 2d)/b
1713.

The following data pertain to a waste-water sample :Initial D.O. = 8 mg/lFinal D.O. = 2 mg/lDilution = 1%.The B.O.D. of the given wastewater sample is

A. 600 mg/l
B. 6 mg/l
C. 0.6 mg/l
D. 1 mg/l
Answer» B. 6 mg/l
1714.

As per practice of Indian Railways, the grade compensation provided for B.G. on curves is

A. 0.5% degree
B. 0.2% degree
C. 0.4% degree
D. 0.15% degree
Answer» D. 0.15% degree
1715.

Westergaard's analysis for stress distribution beneath loaded area is applicable to

A. sandy soils
B. clayey soils
C. stratified soils
D. silty soils
Answer» D. silty soils
1716.

What is the appropriate field test to determine the in-situ undrained shear strength of a soft clay ?

A. static cone penetration test
B. standard penetration test
C. Plate load test
D. Vane shear test
Answer» E.
1717.

The following data pertain to a sewage sample :Initial D.O = 10 mg/lFinal D.O. = 10 mg/1 Dilution to 1%The BOD of the given sewage sample is

A. 8 mg/1
B. 10 mg/1
C. 100 mg/1
D. 800 mg/1
Answer» E.
1718.

Activated sludge is the

A. resultant sludge removable from the aeration unit
B. sludge settled in the humus tank
C. sludge in the secondary tank post-aeration rich in microbial mass
D. sludge.in the secondary tank post aeration, rich in nutrients.
Answer» D. sludge.in the secondary tank post aeration, rich in nutrients.
1719.

Which of the following are the disadvantages of non-tilting type concrete mixers ?1. They are not favoured when large sized aggregates are used.2. Mixing of the concrete occurs through both rolling and pulling from buckets.3. Content of fines is increased.4. They are not easy to clean.Select the correct answer using the codes given below:

A. 1, 2 and 3
B. 1, 3 and 4
C. 1, 2 and 4
D. 2, 3 and 4
Answer» C. 1, 2 and 4
1720.

A beam of square section of side 'a' is plane in the following way :Case I: with two sides horizontalCase II: with a diagonal horizontalThe ratio of the section modulus of Case I that of Case II is

A. 2
B. 2
Answer» C.
1721.

Which one of the following expresses the degree of disturbance of undisturbed clay sample due to remoulding ?

A. Thixotropy
B. Dilatancy
C. Sensivity
D. Plasticity
Answer» D. Plasticity
1722.

If the pressure carried by a CBR specimen at 2.5 mm penetration is 3.5 N/mm2, the CBR of the soil is

A. 0.1
B. 0.35
C. 0.5
D. 0.7
Answer» D. 0.7
1723.

If the standard meridian is 82°30' E and the standard time at longitude 90°E is known to be 8 hr 30 m, the corresponding local mean time at the place will be

A. 7 hr 00 m
B. 8 hr 00 m
C. 8 hr 30 m
D. 9 hr 00 m
Answer» E.
1724.

Cross sections of two beams A (600mm x 200mm) and B (800mm x 60mm) are shown in the given figure. Both the beams have the same material. By how many times is the beam A stronger than the beam B in resisting bending ?

A. 80
B. 60
C. 50
D. 25
Answer» E.
1725.

While designing the superelevation of a highway, its maximum value is fixed considering the need to

A. avoid toppling of slow moving vehicles in mixed traffic flow
B. avoid transverse skidding
C. provide drainage
D. counteract centrifugal force due to 75% of design speed
Answer» E.
1726.

Which one of the following tests can be carried out at the construction site to determine the dynamic elastic properties of soil ?

A. Block vibration test
B. Dutch cone penetration test
C. Standard penetration test
D. Vane shear test
Answer» E.
1727.

The rotation of a rigid body is governed by What is its angular velocity at t - 2s ?

A. 18 rad/s
B. π/4 rad /s
C. π/8 rad /s
D. zero.
Answer» C. œÄ/8 rad /s
1728.

Which one of the following sections performs better on the ductility criterion ?

A. Balanced section
B. Over-reinforced section
C. Under-reinforced section
D. Non-prismatic section
Answer» D. Non-prismatic section
1729.

Consider the following statements :Curing of concrete is necessary because(a) concrete needs more water for chemical reaction(b) it is necessary to protect the water initially mixed in concrete from being lost during evaporation(c) penetration of surrounding water increases the strength of concrete Which of the statements given above is/are correct ?

A. 1, 2 and 3
B. 1 and 3 only
C. 2 only
D. 3 only
Answer» D. 3 only
1730.

Consider the following statements :A : In masonry, bricks are joined together by cement mortar.B : Cement mortar adheres more effectively to brick surface than any other material.

A. both A and R are true and R is the correct explanation of A
B. both A and R are true but R is not the correct explanation of A
C. A is true but R is false
D. A is false but R is true
Answer» E.
1731.

Which one of the follewing represents a circumpolar star ?

A. Upper culmination above horizon, lower culmination below horizon
B. Both upper and lower culminations below horizon
C. Both upper and lower culminations above horizon
D. Altitude at upper culmination is minimum
Answer» D. Altitude at upper culmination is minimum
1732.

Consider the following factors :1. Period of construction, winter/summer2. Degree of foundation roughness3. Slab thickness4. Reinforced/unreinforcedWhich of these factors are considered as per IRC for obtaining the maximum expansion joint spacing in rigid pavements ?

A. 1, 2 and 3
B. 2, 3 and 4
C. 2 and 3
D. 1 and 4
Answer» B. 2, 3 and 4
1733.

What type of vibrator is used for concreting thin section as well as heavily reinforced section?

A. Vibrating needle
B. Internal vibrator
C. Surface vibrator
D. Form vibrator
Answer» E.
1734.

If the stream function ψ = 3x2 - y3, what is the magnitude of velocity at point (2, 2) ?

A. 9
B. 13
C. 15
D. 17
Answer» E.
1735.

Which one of the following statements is correct ?In a plane truss, influence line values

A. vary parabolically between panel points
B. vary exponentially between panel points
C. vary linearly between panel points
D. vary following a cubic relationship between panel points
Answer» D. vary following a cubic relationship between panel points
1736.

Which one of the following is the best method for locating sounding to estimate the dredged material from the harbours ?

A. Two angles from shore
B. Two angles from boat
C. One angle from shore and other from the boat
D. Fixed intersecting ranges
Answer» D. Fixed intersecting ranges
1737.

The most important purpose of frog in a brick is to :

A. emboss manufacturer's name
B. reduce the weight of brick
C. form keyed joint between brick and mortar
D. improve insulation by providing 'hollows'.
Answer» D. improve insulation by providing 'hollows'.
1738.

Which of the following characteristic features may be used while plotting a contour plan ?1. Two contour lines having the same elevation cannot unite the continue as one line.2. Contour lines closed together indicate a gentle slope.3. Contour lines cross a valley line at right angles.Select the correct answer using the codes given below:

A. 1, 2 and 3
B. 1 and 2
C. 2 and 3
D. 1 and 3
Answer» E.
1739.

In a plane truss, if 'M' is the number of members, 'R' is the number of reactions and 'J' is the number of joints, then for this truss to be determinate

A. J = M + R
B. J = 2M + R
C. 3J = M + 2R
D. 2J = M + R
Answer» E.
1740.

A seamless pipe with 80 cm diameter carries a fluid under a pressure of 2 N/mm2. If the permissible tensile stress is 100 N/mm2, the minimum required thickness of the pipe is

A. 2 mm
B. 4 mm
C. 8 mm
D. 16 mm
Answer» D. 16 mm
1741.

When two roads with two-lane, two-way traffic, cross at an uncontrolled intersection, the total number of potentional major conflict points would be

A. 32
B. 24
C. 16
D. 4
Answer» C. 16
1742.

A column section as indicated in the given figure is loaded with a concentrated load at a point 'F' so as to produce maximum bending stress due to eccentricities about xx axis and yy axis as 5 t/m2 and 8 t/m2 respectively. If the direct stress due to loading is 15 t/m2 (compressive), then the intensity of resultant stress at the corner 'B' of the column section is

A. 2 t/m (compressive)
B. 12 t/m (compressive)
C. 18 t/m2 (tensile)
D. 28 t/m2 (compressive)
Answer» B. 12 t/m (compressive)
1743.

In a cantilever beam, the bending moment at any section of the beam is equal to the

A. area of the shear force diagram between the free end of the beam and that section
B. area of the bending force moment diagram between the free end of the beam and that section
C. the area of shear force diagram between the fixed end of the beam and that section
D. the vertical ordinate at that section in the shear force diagram
Answer» B. area of the bending force moment diagram between the free end of the beam and that section
1744.

What is value of stress at the base CC for the bar shown in the given figure ?

A. 16.67 N / mm2
B. 13.33 N / mm2
C. 26.67 N / mm2
D. 30 N / mm2
Answer» E.
1745.

For total reaction time of 2.5 seconds, coefficient of friction 0.35, design speed 80 km/h, what is the stopping sight distance on a highway ?

A. 127 m
B. 132 m
C. 76 m
D. 56 m
Answer» B. 132 m
1746.

Two perfectly elastic spheres of equal mass moving in the same direction with their velocities in the ratio 2 : 1 have an impact. After the impact, the two spheres will

A. move in the same direction
B. have in velocity in the ratio of 1 : 2
C. move in opposite directions with velocity the ratio of 1: 2
D. move in the same direction with velocity the ratio of 1: 2
Answer» E.
1747.

Which one of the following statements is correct ?Maximum service volume of a road is defined as the total number of vehicles that

A. can pass a given point in a specified period of time
B. can be accomodated on a unit length of road
C. can pass a given point in unit time
D. None of the above three
Answer» D. None of the above three
1748.

The following refer to the stability analysis of an earth dam under different conditions :1. Stability of D/S slope during steady seepage.2. Stability of U/S slope during sudden drawdown.3. Stability of U/S and D/S slopes during construction.Of these statements :

A. 1 and 2 are correct
B. 1 and 3 are correct
C. 2 and 3 are correct
D. 1, 2 and 3 are correct
Answer» D. 1, 2 and 3 are correct
1749.

A fixed beam of unifrom section is carrying a point load at its mid-span. If the moment of inertia of the middle half length is now reduced to half its previous value, then the fixed end moments will

A. Increase
B. decrease
C. remain constant
D. change their directions
Answer» C. remain constant
1750.

Consider the following statements :The daily per capita consumption of water apparently increases with1. higher standard of living of people.2. availability of sewerage in the city.3. metered water supply.4. wholesome and potable quality of water.Which of these statements are correct ?

A. 1, 2 and 3
B. 2, 3 and 4
C. 1, 3 and 4
D. 1, 2 and 4
Answer» E.