| Q.39 | Which of the following two tests need two similar mechanically coupled motors? | |
| Ans | A. Hopkinson’s test and Field’s test | |
| B. Retardation test and Swinburne’s test | ||
| C. Retardation test and Hopkinson’s test | ||
| D. Field’s test and Swinburne’s test |
Correct Ans Provided: A