Computer Programming MCQs

5739 MCQs  (Page 290 of 574)

A phase shifting transformer is used in conjunction with_______________?
A. D.c. potentiometer
B. Drysdale potentiometer
C. A.c. co-ordinate potentiometer
D. Crompton potentiometer
To measure an A. C. voltage by using an A.C. potentiometer, it is desirable that the supply for the potentiometer in taken_______________?
A. From a source which is not the same as the unknown voltage
B. From a battery
C. From the same source as the unknown voltage
D. Any of the above
A universal RLC bridge uses_________________?
A. Maxwell bridge configuration for measurement of inductance and de santas bridge for measurement of capacitance
B. Maxwell wein bridge for measurement of inductance and modified de santy’s bridge for measurement of capacitance
C. Maxwell wein bridge for measurement of inductance and wein bridge for measurement of capacitance
D. Any of the above
For measurement of inductance having high value, we should use______________?
A. Maxwell’s bridge
B. Maxwell wein bridge
C. Hay’s bridge
D. Any of the above
Wagner earthing device is used to eliminate errors due to________________?
A. Electrostatic coupling
B. Electromagnetic coupling
C. Both a. and b.
D. None of the above
For measurement of mutual inductance we can use________________?
A. Anderson bridge
B. Maxwell’s bridge
C. Heaviside bridge
D. Any of the above
To avoid the effect of stray magnetic field in A.C. bridges we can use_______________?
A. Magnetic screening
B. Wagner earthing device
C. Wave filters
D. Any of the above