In tramways, how many drum controllers are employed?

Q.  In tramways,
- Published on 04 Sep 15

a. Two drum controllers are employed in series
b. Two drum controllers are employed in parallel
c. Only one drum controller is employed
d. Three drum controller are employed either in parallel or series

ANSWER: Two drum controllers are employed in parallel

Post your comment / Share knowledge


Enter the code shown above:

(Note: If you cannot read the numbers in the above image, reload the page to generate a new one.)