Control System Multiple Choice Questions and Answers

11.  In a control system, noise can be reduced by.........

   A. Reducing bandwidth and attenuating frequencies at which external signal gets coupled to the system

   B. Increasing bandwidth

   C. Reducing bandwidth

   D. None of the above

12.  In control systems stepper motors can be used for

   A. Tape drives

   B. Capstan drives

   C. Computers

   D. None of the above

13.  By which of the following methods the steady-state error of control system can be reduced ?

   A. By increasing time constant of the system

   B. By increasing gain constant of the system

   C. By increasing but time constant and gain constant

   D. None of the above

14.  In pneumatic control systems compensation is provided by which of the following ?

   A. Bimetal strips

   B. Extension tubes

   C. Flapping nozzle mechanism

   D. Restriction volume combinations

15.  In compressed air, in pneumatic control systems, is not

   A. Lubricated

   B. Filtered

   C. Regulated

   D. All of the above

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