Measurement and Instrumentation
In measurement system, the function of the signal manipulating elements is to

 change the magnitude of the input signal while retaining its identity.
 to perform linear operation like addition and multiplication.
 change the quantity under measurement to an analogues signal.
 to perform non liner operation like clipping filtering, chopping and clamping.

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.
  It is based on null balance technique.
 The precision in measurment is independent of the type of the defector used.
 None of above.

ANSWER DOWNLOAD EXAMIANS APP

Measurement and Instrumentation
Assertion (A): A hot wire ammeter has a cramped scale. Reason (R): The heat is proportional to square of current.

 Both A and R are true and R is not correct explanation of A.
 Both A and R are true and R is correct explanation of A.
 A is false and R is ture.
 A is ture and R is false.

ANSWER DOWNLOAD EXAMIANS APP