A. unity
B. 0.5
C. 0.3
D. zero
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. D.C. potentiometer
B. Drysdale potentiometer
C. A.C. co-ordinate potentiometer
D. Crompton potentiometer
A phase shifting transformer is used in conjunction with_______________? Read More »
Measurement and Instrumentation A. single-phase winding
B. two-phase winding
C. three-phase winding
D. any of the above
A. comparing two voltages
B. measuring a current
C. comparing two currents
D. measuring a voltage
E. none of the above
Basically a potentiometer is a device for________________? Read More »
Measurement and Instrumentation A. directly by a D.C. potentiometer
B. a D.C. potentiometer in conjunction with a volt ratio box
C. a D.C. potentiometer in conjunction with a known resistance
D. none of the above
A voltage of about 200 V can be measured__________________? Read More »
Measurement and Instrumentation A. spring
B. gravity
C. coil
D. eddy current
In a meggar controlling torque is provided by______________? Read More »
Measurement and Instrumentation A. to the supply side of the current coil
B. to the load side of the current coil
C. in any of the two meters at connection
D. none of the above
In a low power factor wattmeter the pressure coil is connected_______________? Read More »
Measurement and Instrumentation A. linear
B. non-linear
C. either A. or B.
D. neither A. nor B.
The scale of a rectifier instrument is_________________? Read More »
Measurement and Instrumentation A. almost zero
B. low
C. high
D. none of the above
