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.Management Sciences
Category: Measurement and Instrumentation
A dynamometer wattmeter can be used for______________?
A. both D.C. and A.C.
B. D.C. only
C. A.C. only
D. any of the above
A multirangq instrument has________________?
A. multiple shunt or series resistances inside the meter
B. multicoii arrangement
C. variable turns of coil
D. multi range meters inside the measurement system
E. any of the above
According to application, instruments are classified as_____________?
A. switch board
B. portable
C. both A. and B.
D. moving coil
E. moving iron
F. both D. and E.
The function of shunt in an ammeter is to______________?
A. by pass the current
B. increase the sensitivity of the ammeter
C. increase the resistance of ammeter
D. none of the above
The adjustment of position of shading bands, in an energy meter is done to provide______________?
A. friction compensation
B. creep compensation
C. braking torque
D. none of the above
If an instrument has cramped scale for larger values, then it follows________________?
A. square law
B. logarithmic law
C. uniform law
D. none of the above
__________ instruments are those which measure the total quantity of electricity delivered in a particular time ?
A. Absolute
B. Indicating
C. Recording
D. Integrating
For measuring a very high resistance we should use_______________?
A. Kelvin’s double bridge
B. Wheat stone bridge
C. Meggar
D. None of the above
In a meggar controlling torque is provided by______________?
A. spring
B. gravity
C. coil
D. eddy current
In an AC. co-ordinate potentiometer, the currents in the phase and quadrature potentiometer are adjusted to be_____________?
A. out of phase by 90°
B. out of phase by 60°
C. out of phase by 30°
D. out of phase by 0°
E. out of phase by 180°
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