Important Electric Traction Multiple Choice Questions and Answers


1.  Diesel electric traction has comparatively limited over load capacity because


   A. Diesel engine is a constant output prime mover

   B. Diesel engine has shorter life span

   C. Regenerative braking cannot be employed

   D. Diesel electric locomotive is heavier than an ordinary electric locomotive


✔ View Answer


A. Diesel engine is a constant output prime mover

✍ Your Comments

Your name:

Your Email:

Your Comments:



2.  Electric traction is comparison to other traction systems has the advantages of


   A. Higher acceleration and braking retardation

   B. Cleanest system and so ideally suitable for the underground and tube railways

   C. Better speed control

   D. All of the above


✔ View Answer


D. All of the above

✍ Your Comments

Your name:

Your Email:

Your Comments:



3.  Electric traction in comparison to other traction systems has the drawbacks of


   A. Interference with communication lines running along the track

   B. Heavy initial expenditure in laying out overhead electric supply system

   C. Interruption of traffic for hours owing to short time power failure

   D. All of the above


✔ View Answer


D. All of the above

✍ Your Comments

Your name:

Your Email:

Your Comments:



4.  In underground traction the supply system is


   A. 500 V to 2000 V DC

   B. 25KV, 50 HZ

   C. 50 KV, 50 HZ

   D. 25 KV, 25 HZ


✔ View Answer


A. 500 V to 2000 V DC

✍ Your Comments

Your name:

Your Email:

Your Comments:



5.  Problems of single face traction system is/are


   A. Current and voltage unbalance

   B. Electrostatic and electromagnetic induction

   C. Generation of harmonics

   D. All of the above


✔ View Answer


D. All of the above

✍ Your Comments

Your name:

Your Email:

Your Comments:






1 2 3 4 5 6 7 8 9 10 Next





Enter Your Suggestion/Comments Here










Can't read the image? Click here to refresh