Geology & Hydrology Engineering MCQs Part 2 | Best Collection of Geology & Hydrology MCQ

Civil Engineering MCQs for Geology & Hydrology Engineering Part 2

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Cohesionless soils are formed due to

[A] Oxidation
[B] Hydration
[C] Physical disintergration
[D] Chemical decomposition

ANSWER= [C] Physical disintergration

Cohesionless soils are formed due to Physical disintegration.

The maximum bulking of sand is likely to occur at a moisture content of

[A] 5%
[B] 8%
[C] 11%
[D] 14%

ANSWER= [A] 5%

The maximum bulking of sand is likely to occur at a moisture content of 5%

Organic matter in water for making concrete should not be more than

[A] 1,000 ppm
[B] 3,000 ppm
[C] 10,000 ppm
[D] 15,000 ppm

ANSWER= [B] 3,000 ppm

Organic matter in water for making concrete should not be more than 3,000 ppm

Which of the following porous media has a high specific yield?

[A] Sandy
[B] silty
[C] clayey
[D] Fine clay

ANSWER = [A] Sandy

Sandy porous media has high specific yield

Specific capacity of well refer to ____

[A] Discharge per unit drawdown of the well
[B] Drawdown at the well
[C] Discharge from the well
[D] Draw down per unit discharge from well

ANSWER= [A] Discharge per unit draw down of the well

In a gravity dam, under full reservoir condition, tensile stress is expected at which of the following location?

[A] Toe of the dam
[B] Middle of the dam
[C] Heel of the dam
[D] 2/3 of dam width from the toe

ANSWER= [C] Heel of the dam

Hydraulic jump type energy dissipator is used in Spillways, under which of the following conditions?

[A] Deficient tail water condition with sound rock strata in river bed
[B] Excessive tail water depth with sound rock strata in river bed
[C] Steep sloped channel with sound rock in the river bed
[D] Tail water curve follows the jump height curve

ANSWER = [D] Tail water curve follows the jump height curve

Which of the following purposes of flood control reservoir are met?

[A] It reduces the flood peak in downstream channel
[B] It reduces the flood peak and causes time lag in the flood in downstream channel
[C] It reduces the flood peak and volume of flood in the downstream channel
[D] It reduces the flood volume and causes lag in the flood in downstream channel

ANSWER= [B] It reduces the flood peak and causes time lag in the flood in downstream channel

The canal falls are needed in the canal network for which of the following condition?

[A] Designed slope is smaller than available ground slope
[B] Designed slope is larger than available ground slope
[C] Designed slope is equal to available ground slope
[D] Designed slope is much higher than available ground slope

ANSWER= [A] Designed slope is smaller than available ground slope

The canal falls are needed in the canal network for Designed slope is smaller than the available ground slope

What is the shape of lacey’s regime channel?

[A] Parabolic
[B] Trapezoidal
[C] Semi-elliptical
[D] Triangular

ANSWER = [C] Semi-elliptical

Semi-elliptical is the shape of lacey’s regime channel