Common Interview Questions: Entry Level Instrumentation


#1

Que. : Draw an electronic two wire system control loop.
Que. : What are Intrinsically safe system ?
Que. : What does a transmitter output start from 3-15 psi or (0.2 - 1 Kg/Cm2) or 4 - 20 ma. etc. ?
Que. : What is force balance and motions balance principle ?
Que. : What is Process
Que. : What is Manipulated variable , Error and controlled variable
Que. : Define control agent, actuating signal, Deviation, Offset, reference input, Setpoint
Que. : Define Accuracy, attenuation, deadtime,drift, error , Span error,Zero error , static gain, Hysterisis,Interference,
common mode interference,Normal mode interference, Linearity, Rang, Repeatability, Reproducability,response, Signal to Noise ratio,
time constant, Span, Zeroshift


#2

What is the meaning of calibration?

Calibration is the comparing of device against an equal or better standard.


#3

What is the meaning of DEADTIME?

DEAD TIME, is caused when there is time interval between the initiation of some action and the detection of the action


#4

Kindly share the powerful Answers for above questions?