Answer Posted / adarsh gautam

in petrol engine need spark to ignite,which can't be used in diesel in the same way in diesel engine we need high compression to ignite which can't take place in petrol engine.

The Hook's joint works efficiently when the propeller shaft inclination is a) 18o b) 28o c) 38o d) 48o

1311

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Tell us about the working of a 6-stroke engine.

1093

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In a synchromesh device, when members G1 and F1 are slid to left and cones M1 and M2 are in contact, a) Direct gear is obtained b) Second gear is obtained c) Third gear is obtained d) Reverse gear is obtained

1266

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Double declutching is required in constant mesh gear box a) To equalize the speed of main shaft gear and the sliding dog b) To provide direct gear c) To equalize the speed of countershaft gear and the sliding dog d) None of the above

1726

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What is octane number and cetane number?

1059

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Single reduction is used in final drive when it is about a) 6:1 b) 8:1 c) 10:1 d) 12:1

1337

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Differentiate between stress and strain.

1027

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In a constant mesh gear box, when the right dog clutch is engaged with the gear on the right side of the main shaft, a) Direct gear is obtained b) First gear is obtained c) Second gear is obtained d) Reverse gear is obtained

1246

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Differentiate between torque and power.

1109

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What is the reason for emitting the white exhaust smoke during start of the vehicle?

983

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Why rear wheels are bigger in vehicles?

1100

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What is the reason for emitting the white exhaust smoke during start of the vehicle? How will you prevent this?

1068

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Tell me which has more efficiency: Diesel engine or Petrol engine.

977

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i had applied for 6 categories for rrb section engineers posts 2 different rrb boards 2 those i was eligible of an single notificatoin. do i need 2 write different exams or single exam

2520

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The crown wheel of the final drive is connected to a) Cage b) Spider c) Cross pin d) Axle half shaft

1437

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