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ESE Prelims 2022 Achievers Quiz 22

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Question 1

Statements related to functions of ballast:

1) To provide effective drainage to track

2) It does not transfer the load to a larger area of formation

Which of these statements is/are correct?

Question 2

The width (m) of the narrow gauge is _____.

Question 3

For a Meter Gauge route with M+6 sleeper density, number of sleepers per rail length is

Question 4

Consider the following statements regarding concrete cancer:

1) This phenomenon is accompanied by extensive expansion and may lead to complete disruption and disintegration of concrete.

2) The trouble is due to reaction between silica in aggregate and alkalis in the cement.

Which of the above statements is (are) correct?

Question 5

Consider the following statements regarding good sand.

1) It should contain sharp, angular, coarse and durable grains.

2) It should be uniformly graded.

3) The fineness modulus of sand should be between 2 and 3.

Which of the following statements is/are correct?

Question 6

Consider the following:
1) Force on pipe bends and transitions
2) Jet propulsion
3) Flow velocities in open channel
4) Vortex flow
Which of the above admit employing the moment of momentum equation?

Question 7

Consider the following assumptions made in the analysis of a jet impinging normally on a moving plate to introduce the principle of moment of momentum:
1) Friction between jet and plate is neglected
2) Flow is steady
3) Impinging momentum of jet is unchanged
4) Plate moves at a constant velocity.
Which of these statements are relevant?

Question 8

Consider the following types of turbines:
1) Francis
2) Pelton with a Single jet
3) Kaplan
The correct sequence of these turbines in
Increasing order of their specific speeds is

Question 9

Statement (I): Draft tube is not used in Pelton wheel turbine.

Statement (II): Pressure at inlet and outlet of the pelton wheel turbine is atmospheric.

Question 10

Which of the following statement(s) is/are correct regarding hydraulic turbines.

1) Kaplan turbine is used for low head and high discharge

2) Specific speed of Kaplan turbine is more than Francis turbine

3) Runner of Francis turbines has blades much less than Kaplan turbine.

4) Efficiency of Francis turbine is higher than Kaplan turbine

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May 12ESE & GATE CE