MCQs

Civil Engineering MCQs with Explanations

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2101Civil EngineeringMedium

The ratio of lateral strain to axial strain of a homogeneous material, is known________?

AHooke’s ratio

BPlastic ratio

CPoisson’s ratio

DYield ratio

Correct answer

C. Poisson’s ratio

Explanation

The correct answer is Poisson’s ratio.

2102Civil EngineeringMedium

The group index for a soil, whose liquid limit is 40 percent, plasticity index is 10 percent and percentage passing 75 micron IS sieve is 35, is________?

Correct answer

C. 0

Explanation

The correct answer is 0.

2103Civil EngineeringMedium

The settling velocity of a spherical particle of diameter less than 0.1 mm as per Stock’s law, is________?

AVs = 218 (Gs – Gw)d2 [(3T + 70)/100]

BVs = 418 (Gs – Gw)d2 [(3T + 70)/100]

CVs = 418 (Gs – Gw) d [(3T + 70)/100]

DVs = 218 (Gs – Gw)d [(3T + 70)/100]

Correct answer

B. Vs = 418 (Gs – Gw)d2 [(3T + 70)/100]

Explanation

The correct answer is Vs = 418 (Gs – Gw)d2 [(3T + 70)/100].

2104Civil EngineeringMedium

The maximum value of the horizontal range for a projectile projected with a velocity of 98 m/sec is________?

A490 m

B980 m

C1960 m

D98 m

Correct answer

B. 980 m

Explanation

The correct answer is 980 m.

2105Civil EngineeringMedium

The boundary layer thickness at a distance of l m from the leading edge of a flat plate, kept at zero angle of incidence to the flow direction, is O.l cm. The velocity outside the boundary layer is 25 ml sec. The boundary layer thickness at a distance of 4 m is________?

A0.05 cm

B0.20 cm

C0.10 cm

D0.40 cm

Correct answer

B. 0.20 cm

Explanation

The correct answer is 0.20 cm.

2106Civil EngineeringMedium

Ordinary rails are made of________?

Acast iron

Bwrought iron

Cmild steel

Dhigh carbon steel

Correct answer

D. high carbon steel

Explanation

The correct answer is high carbon steel.

2107Civil EngineeringMedium

If the risk of a flood occurring in the next 10 years is accepted to 10%, then the return period for design should be________?

A1/(1+ 0.9010)

B1 + (0.9)010

C1 – (0.9)°l0

D1/(1-0.9°10)

Correct answer

D. 1/(1-0.9°10)

Explanation

The correct answer is 1/(1-0.9°10).

2108Civil EngineeringMedium

The stream which does not have any base flow contribution is called________?

Aperennial stream

Bintermittent stream

Cnone of the above

Dephemeral stream

Correct answer

D. ephemeral stream

Explanation

The correct answer is ephemeral stream.

2109Civil EngineeringMedium

The difference in height between highest high water and lowest low water is called________?

Amaximum range

Bmean rise

Cmean range

Dmaximum rise

Correct answer

A. maximum range

Explanation

The correct answer is maximum range.

2110Civil EngineeringMedium

The sewer pipes________?

AAre designed for generating self-cleansing velocities at different discharge

BAll the above

CCarry sewage as gravity conduits

DShould resist the wear and tear caused due to abrasion

Correct answer

B. All the above

Explanation

The correct answer is All the above.

2101Civil EngineeringMedium

The ratio of lateral strain to axial strain of a homogeneous material, is known________?

AHooke’s ratio

BPlastic ratio

CPoisson’s ratio

DYield ratio

Correct answer

C. Poisson’s ratio

Explanation

The correct answer is Poisson’s ratio.

2102Civil EngineeringMedium

The group index for a soil, whose liquid limit is 40 percent, plasticity index is 10 percent and percentage passing 75 micron IS sieve is 35, is________?

Correct answer

C. 0

Explanation

The correct answer is 0.

2103Civil EngineeringMedium

The settling velocity of a spherical particle of diameter less than 0.1 mm as per Stock’s law, is________?

AVs = 218 (Gs – Gw)d2 [(3T + 70)/100]

BVs = 418 (Gs – Gw)d2 [(3T + 70)/100]

CVs = 418 (Gs – Gw) d [(3T + 70)/100]

DVs = 218 (Gs – Gw)d [(3T + 70)/100]

Correct answer

B. Vs = 418 (Gs – Gw)d2 [(3T + 70)/100]

Explanation

The correct answer is Vs = 418 (Gs – Gw)d2 [(3T + 70)/100].

2104Civil EngineeringMedium

The maximum value of the horizontal range for a projectile projected with a velocity of 98 m/sec is________?

A490 m

B980 m

C1960 m

D98 m

Correct answer

B. 980 m

Explanation

The correct answer is 980 m.

2105Civil EngineeringMedium

The boundary layer thickness at a distance of l m from the leading edge of a flat plate, kept at zero angle of incidence to the flow direction, is O.l cm. The velocity outside the boundary layer is 25 ml sec. The boundary layer thickness at a distance of 4 m is________?

A0.05 cm

B0.20 cm

C0.10 cm

D0.40 cm

Correct answer

B. 0.20 cm

Explanation

The correct answer is 0.20 cm.

2106Civil EngineeringMedium

Ordinary rails are made of________?

Acast iron

Bwrought iron

Cmild steel

Dhigh carbon steel

Correct answer

D. high carbon steel

Explanation

The correct answer is high carbon steel.

2107Civil EngineeringMedium

If the risk of a flood occurring in the next 10 years is accepted to 10%, then the return period for design should be________?

A1/(1+ 0.9010)

B1 + (0.9)010

C1 – (0.9)°l0

D1/(1-0.9°10)

Correct answer

D. 1/(1-0.9°10)

Explanation

The correct answer is 1/(1-0.9°10).

2108Civil EngineeringMedium

The stream which does not have any base flow contribution is called________?

Aperennial stream

Bintermittent stream

Cnone of the above

Dephemeral stream

Correct answer

D. ephemeral stream

Explanation

The correct answer is ephemeral stream.

2109Civil EngineeringMedium

The difference in height between highest high water and lowest low water is called________?

Amaximum range

Bmean rise

Cmean range

Dmaximum rise

Correct answer

A. maximum range

Explanation

The correct answer is maximum range.

2110Civil EngineeringMedium

The sewer pipes________?

AAre designed for generating self-cleansing velocities at different discharge

BAll the above

CCarry sewage as gravity conduits

DShould resist the wear and tear caused due to abrasion

Correct answer

B. All the above

Explanation

The correct answer is All the above.