Control System Set 1

Output is independent of control input ✘ Output is dependent on control input ✘ Only system parameters have effect on the control output ✘ None of the above ✔

Less expensive ✘ Recalibration is not required for maintaining the required quality of the output ✘ Construction is simple and maintenance easy ✘ Errors are caused by disturbances ✔

Closed loop system ✘ Semiclosed loop system ✘ Open system ✘ None of the above ✔

decrease ✘ increase ✘ be unaffected ✘ any of the above ✔

Field controlled D.C. motor ✘ Ward leonard control ✘ Metadyne ✘ Stroboscope ✔

Input command is the sole factor responsible for providing the control action ✘ Presence of non-linearities causes malfunctioning ✘ Less expensive ✘ Generally free from problems of non-linearities ✔

the control action depends on the size of the system ✘ the control action depends on system variables ✘ the control action depends on the input signal ✘ the control action is independent of the output ✔

Open loop system ✘ Closed loop system ✘ Both (a) and (b) ✘ Neither (a) nor (b) ✔

good stability ✘ slow response ✘ good accuracy ✘ sufficient power handling capacity ✔

Clutch ✘ Eyes ✘ Needle of the speedometer ✘ Steering wheel ✔