Computer Programming MCQs

5739 MCQs  (Page 297 of 574)

_______________is a closed loop system?
A. Auto-pilot for an aircraft
B. Direct current generator
C. Car starter
D. Electric switch
Which of the following should be done to make an unstable system stable ?
A. The gain of the system should be decreased
B. The gain of the system should be increased
C. The number of poles to the loop transfer function should be increased
D. The number of zeros to the loop transfer function should be increased
The band width, in a feedback amplifier_______________?
A. Remains unaffected
B. Decreases by the same amount as the gain increase
C. Increases by the sane saaaajajt as the gain decrease
D. Decreases by the same amount as the gain decrease
_______________is an open loop control system?
A. Ward leonard control
B. Field controlled d.c. motor
C. Stroboscope
D. Metadyne
Zero initial condition for a system means_______________?
A. Input reference signal is zero
B. Zero stored energy
C. Ne initial movement of moving parts
D. System is at rest and no energy is stored in any of its components
Transfer function of a system is used to calculate which of the following ?
A. The order of the system
B. The time constant
C. The output for any given input
D. The steady state gain
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