MCQs

Civil Engineering MCQs with Explanations

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2461Civil EngineeringMedium

In which of the following trusses, the method of substitution is required for determining the forces in all the members of the truss by graphic statics?

Awarren truss

Bking post truss

Chowe truss

Dfink truss

Correct answer

D. fink truss

Explanation

The correct answer is fink truss.

2462Civil EngineeringMedium

A semi-circular disc rests on a horizontal surface with its top flat surface horizontal and circular portion touching down. The coefficient of friction between semi-cricular disc and horizontal surface is i. This disc is to be pulled by a horizontal force applied at one edge and it always remains horizontal. When the disc is about to start moving, its top horizontal force will________?

Anone of the above

Bslant up towards direction of pull

Cremain horizontal

Dslant down towards direction of pull

Eunpredictable

Correct answer

D. slant down towards direction of pull

Explanation

The correct answer is slant down towards direction of pull.

2463Civil EngineeringMedium

The compressive strength of 100 mm cube as compared to 150 mm cube is always________?

Anone of the above

Bless

Cmore

Dequal

Correct answer

C. more

Explanation

The correct answer is more.

2464Civil EngineeringMedium

Coefficient of consolidation for clays normally________?

Aremains constant at all liquid limits

Bincreases with increase in liquid limit

Cdecreases with increase in liquid limit

Dfirst increases and then decreases with increase in liquid limit

Correct answer

C. decreases with increase in liquid limit

Explanation

The correct answer is decreases with increase in liquid limit.

2465Civil EngineeringMedium

A runoff river plant________?

Ais a medium head scheme

Bhas no pondage at all

Cgenerates power during peak hours only

Dis suitable only on a perennial river

Correct answer

D. is suitable only on a perennial river

Explanation

The correct answer is is suitable only on a perennial river.

2466Civil EngineeringMedium

For laying a sewer line in a trench of 2 m width, an offset line is marked on the ground parallel to the given centre line at a distance of________?

A160 cm

B140 cm

C100 cm

D120 cm

Correct answer

A. 160 cm

Explanation

The correct answer is 160 cm.

2467Civil EngineeringMedium

A unit hydro graph has one unit of________?

Arainfall excess

Btime base of direct runoff

Crainfall duration

Ddischarge

Correct answer

A. rainfall excess

Explanation

The correct answer is rainfall excess.

2468Civil EngineeringMedium

A perfect gas________?

Ahas zero viscosity

Bis incompressible

Cis of theoretical interest

Dnone of the above

Ehas constant viscosity

Correct answer

D. none of the above

Explanation

The correct answer is none of the above.

2469Civil EngineeringMedium

The unit of work or energy in S.I. units is________?

Akilogram meter

Bnewton

Cjoule

Dpascal

Ewatt

Correct answer

C. joule

Explanation

The correct answer is joule.

2470Civil EngineeringMedium

Skimming tanks are________?

AImproved version of grit chambers

BUsed to remove the grease and oil

CTanks provided with self- cleansing screens

DThose from which sludge is skimmed out

Correct answer

B. Used to remove the grease and oil

Explanation

The correct answer is Used to remove the grease and oil.

Coefficient of consolidation for clays normally________?

Aremains constant at all liquid limits

Bincreases with increase in liquid limit

Cdecreases with increase in liquid limit

Dfirst increases and then decreases with increase in liquid limit

Correct answer

C. decreases with increase in liquid limit

Explanation

The correct answer is decreases with increase in liquid limit.