Question: ________________ frequency is not common in low frequency traction system?

• 1. 40 Hz
• 2. 25 Hz
• 3. 16 Hz
• 4. non of these

Question: Locomotives with monometer bogies have_________________?

• 1. uneven distribution of tractive effect
• 2. suitability for passanger as well as freight service
• 3. lot of skidding
• 4. low co-efficient of adhesion

Question: For 25 kV single phase system power supply frequency is_______________?

• 1. 60 Hz
• 2. 50 Hz
• 3. 25 Hz
• 4. 16 Hz

Question: Suri transmission is_________________?

• 1. electrical-pneumatic
• 2. mechanical-electrical
• 3. hydro-mechanical
• 4. hydro-pneumatic

Question: In case of a steam engine an average coal consumption per km is nearly________________?

• 1. 150 to 175 kg
• 2. 100 to 120 kg
• 3. 60 to 80 kg
• 4. 28 to 30 kg

Question: For which of the following locomotives the maintenance requirements are the least ?

• 1. Steam locomotives
• 2. Diesel locomotives
• 3. Electric locomotives
• 4. Equal in all of the above

Question: Power for lighting in passanger coach, in a long distance electric train, is provided_________________?

• 1. directly through overhead electric line
• 2. through individual generator of bogie and batteries
• 3. through rails
• 4. through locomotive

Question: Which of the following happens in Kando system ?

• 1. Three phase AC is converted into DC
• 2. Single phase AC is converted into DC
• 3. Single phase supply is converted into three phase system
• 4. None of the above

Question: If the co-efficient of adhesion on dry rails is 0.26, which of the following could be the value for wet rails ?

• 1. 0.3
• 2. 0.26
• 3. 0.225
• 4. 0.16

Question: The coasting retardation is around_________________?

• 1. 0.16 km phps
• 2. 1.6 km phps
• 3. 16 km phps
• 4. 40 km phps