Measurements and Instrumentation

Q.

Assertion (A): The speed of a shaft can be measured by using a dc tacho generator.

Reason (R): A two phase servometer can also be used as a speed transducer.

A. Both A and R are true and R is correct explanation of A
B. Both A and R are true but R is not correct explanation of A
C. A is true R is false
D. A is false R is true

Answer : Option B

Explanation :