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Civil Engineering MCQs with Explanations

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21Civil EngineeringMedium

A square column carries a load P at the centroid of one of the quarters of the square. If a is the side of the main square, the combined bending stress will be________?

Ap/a2

B3p/a2

C2p/a2

D4p/a2

Correct answer

B. 3p/a2

Explanation

The correct answer is 3p/a2.

22Civil EngineeringMedium

The shoulder provided along the road edge should be________?

Arougher than the traffic lanes

Bof same colour as that of the pavement

Cof very low load bearing capacity

Dsmoother than the traffic lanes

Correct answer

A. rougher than the traffic lanes

Explanation

The correct answer is rougher than the traffic lanes.

23Civil EngineeringMedium

According to law of triangle of forces________?

Anone of the above

Bif three forces acting at a point are in equilibrium, each force is proportional to the sine of the angle between the other two

Cif three forces acting upon a patticle are represented in magnitude and direction by the sides of a triangle, taken in order, they will be in equilibrium

Dthree forces acting at a point will be in equilibrium

Ethree forces acting at a point can be represented by a triangle, each side being proportional to force

Correct answer

C. if three forces acting upon a patticle are represented in magnitude and direction by the sides of a triangle, taken in order, they will be in equilibrium

Explanation

The correct answer is if three forces acting upon a patticle are represented in magnitude and direction by the sides of a triangle, taken in order, they will be in equilibrium.

24Civil EngineeringMedium

The minimum clear cover for R.C.C. columns shall be________?

AGreater of 40 mm or diameter

BGreater of 25 mm or diameter

CSmaller of 40 mm or diameter

DSmaller of 25 mm or diameter

Correct answer

B. Greater of 25 mm or diameter

Explanation

The correct answer is Greater of 25 mm or diameter.

25Civil EngineeringMedium

The angle of repose of a soil is the maximum angle which the outer face of the soil mass makes________?

AWith the horizontal

BWith the perpendicular to the inclined plane of the soil

CNone of these

DWith the vertical

Correct answer

A. With the horizontal

Explanation

The correct answer is With the horizontal.

26Civil EngineeringMedium

Percentage of silica in a good brick earth lies between________?

A50 to 60%

B5 to 10%

C20 to 30%

D70 to 80%

Correct answer

A. 50 to 60%

Explanation

The correct answer is 50 to 60%.

27Civil EngineeringMedium

The flow in which the velocity vector is identical in magnitude and direction at every point, for any given instant, is known as________?

Astreamline flow

Bone dimensional flow

Cturbulent flow

Dsteady flow

Euniform flow

Correct answer

E. uniform flow

Explanation

The correct answer is uniform flow.

28Civil EngineeringMedium

The most suitable method for drainage of fine grained cohesive soils is________?

Adeep well system

Bwell ppint system

Cvacuum method

Delectroosmosis method

Correct answer

D. electroosmosis method

Explanation

The correct answer is electroosmosis method.

29Civil EngineeringMedium

If cohesion between molecules of a fluid is greater than adhesion between fluid and glass, then the free level of fluid in a dipped glass tube will be________?

Anone of the above

Bhigher than the surface of liquid

Cthe same as the surface of liquid

Dlower than the surface of liquid

Eunpredictable

Correct answer

D. lower than the surface of liquid

Explanation

The correct answer is lower than the surface of liquid.

30Civil EngineeringMedium

If ‘N’ is the number of shafts used, then the total number of feces available for attacking the excavation and construction in tunnels are________?

A2N

B2 N + 2

CN + 2

D2 N + 1

Correct answer

B. 2 N + 2

Explanation

The correct answer is 2 N + 2.

According to law of triangle of forces________?

Anone of the above

Bif three forces acting at a point are in equilibrium, each force is proportional to the sine of the angle between the other two

Cif three forces acting upon a patticle are represented in magnitude and direction by the sides of a triangle, taken in order, they will be in equilibrium

Dthree forces acting at a point will be in equilibrium

Ethree forces acting at a point can be represented by a triangle, each side being proportional to force

Correct answer

C. if three forces acting upon a patticle are represented in magnitude and direction by the sides of a triangle, taken in order, they will be in equilibrium

Explanation

The correct answer is if three forces acting upon a patticle are represented in magnitude and direction by the sides of a triangle, taken in order, they will be in equilibrium.