CHEMICAL REACTION ENGINEERING QUIZ

Ordinary rails are made of

high carbon steel

wrought iron

mild steel

cast iron

TRUE ANSWER : ?
YOUR ANSWER : ?

Study the following statements regarding creep.<br/>i) Creep is greater on curves than on tangent railway track,<br/>ii) Creep in new rails is more than that in old rails,<br/>iii) Creep is more on steep gradients than on level track.The correct answer is

(i)and(ii)

(ii) and (iii)

(i), (ii) and (iii)

only (i)

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YOUR ANSWER : ?

Number of keys used in CST-9 sleeper is

4

None of these

2

3

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YOUR ANSWER : ?

The purpose of providing fillet in a rail section is to

Increase the vertical stiffness

Reduce the wear

Avoid the stress concentration

Increase the lateral strength

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YOUR ANSWER : ?

A treadle bar is used for

setting marshalling yard signals

setting points and crossings

track maintenance

interlocking points and signal

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YOUR ANSWER : ?

Dog spikes are used for fixing rail to the

concrete sleepers

CST-9 sleepers

wooden sleepers

steel trough sleepers

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YOUR ANSWER : ?

If ‘A’ is the angle formed by two gauge faces, the crossing number will be

Arad

cot A

tan A

sec A

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YOUR ANSWER : ?

Lead of crossing is the distance from the

toe of the switch to the theoretical nose of crossing

toe of the switch to the actual nose of crossing

heel of the switch to the theoretical nose of the crossing

heel of the switch to the toe of the switch

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YOUR ANSWER : ?

The height of the rail for 52 kg rail section is

162 mm

187 mm

189 mm

156 mm

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YOUR ANSWER : ?

Consider the following statements: Automatic signalling system results in 1. greater risk 2. higher efficiency 3. avoidance of block instruments 4. higher operating cost Of these statements

3 and 4 are correct

1 and 4 are correct

I and 2 are correct

2 and 3 are correct

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YOUR ANSWER : ?

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