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ESE Prelims 2022 Achievers Quiz 21

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Question 1

Select the incorrect statement:

Question 2

The bitumen is mixed with a volatile diluent to

Question 3

The properties bitumen should possess to be used as a highway material are

(i) High temperature susceptibility

(ii) Good adhesive properties

(iii) High softening point

(iv) Sufficient flexibility

Question 4

Which of the following is not a retarding admixture?

Question 5

The entrained air in concrete ______.

Question 6

Statement (I): Value of coefficient of discharge (cd) 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 7

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

Question 8

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 9

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 10

Assertion (A): Total energy of flow decreases in the direction of flow.
Reason (R): The specific energy may decrease, increase or remain constant.
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May 15ESE & GATE CE