A Best Way To Crack Gorenment Job Exams

Electrical Engineering Objective Questions { Electrical And Electronic Measurement }



36. The most efficient form of damping in an instrument is
A. eddy current
B. fluid friction
C. air friction
D. none of these

37. Instrument accuracy is defined as
A. the measure of consistency or reproduci-bility of the measurements
B. closeness with which an instrument reading approaches the true value of the quantity being measured
C. the smallest measurable input change
D. the ratio of the change in output signal to the change in the input signal

38. Instrument efficiency is defined as
A. the ability of the instrument to read the smallest input changes
B. the ratio of the measured quantity at full scale to the power taken by the instrument at full scale
C. the ratio of the change in output signal to the change in input signal
D. the ability of the system to reproduce the output in the same form as the input

39. A current transformer
A. should have its secondary open while the primary is carrying current
B. should never have its secondary open while the primary is carrying current
C. is never used with the seconday circuit closed through ammeters, wattmeters, current coils or relay coils
D. may keep the secondary circuit closed without any serious trouble

40. Anderson bridge
A. requires a standard inductor in terms of which the loss angle of the capacitor is expressed
B. is applicable for precise measurement of capacitances
C. is applicable for precise measurement of inductances over a wide range of values
D. requires a standard resistor in terms of which the self inductance is expressed

41. Hay's bridge is particularly suited for measurement of capacitance over a wide range of values
A. is particularly suited for measurement of inductance having high Q-value
B. is suited for measurement of capacitance having high Q-value
C. is suited for measurement of inductance having low Q-value
D.

42. Wien bridge is used for the measurement of
A. resistance
B. capacitance
C. frequency
D. inductance

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