Question: An ideal traction system should have_______________?

• 1. easy speed control
• 2. high starting tractive effort
• 3. equipment capable of with standing large temporary loads
• 4. all of the above

Question: Energy consumption in propelling the train is required for which of the following?

• 1. Work against the resistance to motion
• 2. Work against gravity while moving up the gradient
• 3. Acceleration
• 4. All of the above

Question: Overhead lines for power supply to tramcars are at a minimum height of______________?

• 1. 3 m
• 2. 6 m
• 3. 10 m
• 4. 15 m

Question: Specific energy consumption is affected by which of the following factors ?

• 1. Retardation and acceleration values
• 2. Gradient
• 3. Distance between stops
• 4. All of the above

Question: Locomotive having monomotor bogies________________?

• 1. has better coefficient of adhesion
• 2. are suited both for passanger as well as freight service
• 3. has better riding qualities due to the reduction of lateral forces
• 4. has all above qualities

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