Measurement and Instrumentation
Assertion (A) : It is always desirable to take the reading of an indicating instrument very close to the full scale reading. Reason (R) : Accuracy of an indicating instrument is maximum at the full scale deflection and error increases as reading comes closer to the beginning of the scale.

 A is false bur R is true
 Both A and R are true but R is NOT the correct explanation of A
 A is true but R is false
 Both A and R are true and R is the correct explanation of A

ANSWER DOWNLOAD EXAMIANS APP

Measurement and Instrumentation
In AC circuits, the connection of measuring instruments cause loading effect errors which may effect

 magnitude, phase and waveform of the quantity being measured.
 both of above.
 only phase of the quantity being measured.
 only the magnitude of the quantity being measured.

ANSWER DOWNLOAD EXAMIANS APP

Measurement and Instrumentation
A DC potentiometer is the best means available for the measurement of DC voltage because

 It is possible to standardize before a measurement is undertaken.
 The precision in measurment is independent of the type of the defector used.
  It is based on null balance technique.
 None of above.

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Measurement and Instrumentation