Which of the following devices are commonly used as error detectors in instruments ?

Related Mcqs:

1. In a control system integral error compensation _________________ steady state error?

   A. increases B. minimizes C. does not have any effect on D. any of the above...

2. Which of the following devices is used for conversion of co-ordinates ?

   A. Microsyn B. Selsyn C. Synchro-resolver D. Synchro-transformer...

3. Pressure error can be measured by which of the following ?

   A. Differential bellows and straingauge B. Selsyn C. Strain gauge D. Strain gauge and potentiometer...

4. Static error coefficients are used as a measure of the effectiveness of closed loop systems for specified ___________ input signal?

   A. acceleration B. velocity C. position D. all of the above...

5. Velocity error constant of a system is measured when the input to the system is unit ___________ function?

   A. parabolic B. ramp C. impulse D. step...

6. The effect of error damping is to______________?

   A. provide larger settling lime B. delay the response C. reduce steady state error D. any of the above F. none of the above...

7. A car is raining at a constant speed of 50 km/h, which of the following is the feedback element for the driver ?

   A. Clutch B. Eyes C. Needle of the speedometer D. Steering wheel F. None of the above...

8. The second derivative input signals modify which of the following ?

   A. The time constant of the system B. Damping of the system C. The gain of the system D. The time constant and suppress the oscillations F. None of the above...

9. An amplidyne can give which of the following characteristics ?

   A. Constant current B. Constant voltage C. Constant current as well as constant voltage D. Constant current, constant voltage and constant power F. None of the above...

10. Which of the following is an electromagnetically device ?

    A. Induction relay B. Thermocouple C. LVDT D. Any of the above F. None of the above...