Any externally introduced signal affecting the controlled output is called a______________?

Related Mcqs:

1. signal will become zero when the feedback signal and reference signs are equal?

   A. Input B. Actuating C. Feedback D. Reference...

2. A signal other than the reference input that tends to affect the value of controlled variable is known as_________________?

   A. disturbance B. command C. control element D. reference input...

3. 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...

4. A control system in which the control action is somehow dependent on the output is known as____________?

   A. Closed loop system B. Semiclosed loop system C. Open system D. None of the above...

5. The initial response when tne output is not equal to input is called_____________?

   A. Transient response B. Error response C. Dynamic response D. Either of the above...

6. The output of a feedback control system must be a function of_________________?

   A. reference and output B. reference and input F. input and feedback signal D. output and feedback signal...

7. In a control system the output of the controller is given to_____________?

   A. final control element B. amplifier C. comparator D. sensor F. none of the above...

8. Which of the following is the output of a thermocouple ?

   A. Alternating current B. Direct current C. A.C. voltage D. D.C. voltage F. None of the above...

9. If a step function is applied to the input of a system and the output remains below a certain level for all the time, the system is_____________?

   A. not necessarily stable B. stable C. unstable D. always unstable F. any of the above...

10. A.C. servomotor resembles_____________?

    A. two phase induction motor B. Three phase induction motor C. direct current series motor D. universal motor...