A. moving coil instrument
B. moving iron instrument
C. dynamometer instrument
D. none of the above
A Weston frequency meter is_____________? Read More »
Measurement and Instrumentation A. 0.1 Hz
B. 0.25 Hz
C. 0.5 Hz
D. 1.5 Hz
A. a few volts only
B. 1 kV
C. 5 kV
D. 10 kV
A. the bridge can always be balanced
B. the bridge cannot be balanced
C. the bridge can be balanced if the resistances have some specific values
A. 10°
B. 80°
C. 120°
D. 170°
A. the same dimensions and the same number of turns
B. the same dimension but different number of turns
C. the same number of turns but different dimensions
D. none of the above
The two pressure coils of a single phase power factor meter have_________________? Read More »
Measurement and Instrumentation A. 0.1 Hz
B. 0.25 Hz
C. 0.5 Hz
D. 1.5 Hz
A. one voltmeter and one ammeter
B. one voltmeter, one ammeter and one wattmeter
C. one voltmeter, one ammeter and one energy meter
D. any of the above
A. moving coil instrument
B. moving iron instrument
C. dynamometer instrument
D. none of the above
A Weston synchronoscope is a________________? Read More »
Measurement and Instrumentation A. bus-bars
B. incoming alternator
C. a lamp
D. none of the above
In a Weston synchronoscope, the fixed coils are connected across_______________? Read More »
Measurement and Instrumentation