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BARC OCES 2022 Quiz 8

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Question 1

Statement (I): Value of coefficient of discharge (c_d) for a venturimeter is always less than one.

Statement (II): Measured value of difference in piezometric head (Δh) in the venturimeter for a real fluid will always be greater than that assumed for an ideal fluid due to frictional losses.

Question 2

Among weirs used in open flow metrology, critical depth of the flow is the relevant criterion in:

Question 3

A line source of strength 15 m/s is situated within a uniform stream flowing at –12 m/s (i.e., right to left). At a distance of 0.6m downstream from the source is an equal sink. How far will the stagnation points be from the nearest source/ sink?

Question 4

Assertion (A): It takes longer to drain a reservoir with a long vertical pipe taken down from its bottom discharging into atmosphere than with an orifice at the bottom.
Reason (R): The relative height of the water surface elevation in the reservoir compensates for the friction loss in the pipe besides the entry and exit losses in the pipe.

Question 5

Assertion (A): Total energy of flow decreases in the direction of flow.
Reason (R): The specific energy may decrease, increase or remain constant.

Question 6

The plastic limit and liquid limit of the soil are 25% and 40% respectively. The percentage volume change from liquid limit to dry state is 35% of dry volume. Similarly the percentage volume change from plastic limit to dry state is 25% of the dry volume. The shrinkage ratio will be nearly -

Question 7

A clay sample has a void ratio 0.54 in dry state. The specific gravity of soil solids is 2.7. What is the shrinkage limit of the soil?

Question 8

The best soil as a foundation material among the following is

Question 9

The specific gravity of a soil sample is 2.7 and its void ratio is 0.945. when it is fully saturated the moisture content of the soil will be

Question 10

Following data is given for a soil sample:

Air content = 34%; water content = 20%

Specific gravity, = 2.70.

percentage Air voids for the soil sample will be:

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ESE & GATE CE General

May 15ESE & GATE CE