Computer Programming MCQs

5739 MCQs  (Page 285 of 574)

Which of the following essential features is possessed by an indicating instrument?
A. Deflecting device
B. Controlling device
C. Damping device
D. All of the above
The spring material used in a spring control device should have the following property?
A. should be non-magnetic
B. most be of low temperature co-efficient
C. should have low specific resistance
D. should not be subjected to fatigue
Which of the following are integrating instruments ?
A. Ammeters
B. Voltmeters
C. Wattmeters
D. Ampere-hour and watt-hour meters
Resistances can be measured with the help of_______________?
A. Wattmeters
B. Voltmeters
C. Ammeters
D. Ohmmeters and resistance bridges
Most common form of A.C. meters met with in every day domestic and industrial installations are______________?
A. Mercury motor meters
B. Commutator motor meters
C. Induction type single phase energy meters
D. All of the above
A moving-coil permanent-magnet instrument can be used as flux-meter_____________?
A. By using a low resistance shunt
B. By using a high series resistance
C. By eliminating the control springs
D. By making control springs of large moment of inertia