Computer Programming MCQs

5739 MCQs  (Page 294 of 574)

Operating torques in analogue instruments are_______________?
A. Deflecting and control
B. Deflecting and damping
C. Deflecting, control and damping
D. Vibration and balancing
E.m.f. of a Weston cell is accurately measured by________________?
A. Electrostatic voltmeter
B. Hot wire voltmeter
C. Isothermal voltmeter
D. Electrodynamic voltmeter
Systematic errors are_________________?
A. Instrumental errors
B. Environmental errors
C. Observational errors
D. All of the above
Most sensitive galvanometer is_____________?
A. Elastic galvanometer
B. Vibration galvanometer
C. Duddlb galvanometer
D. Spot ballistic galvanometer
The rectifier instrument is not free from_______________?
A. Temperature error
B. Wave shape error
C. Frequency error
D. All of the above
An instrument transformer is used to extend the range of______________?
A. Induction instrument
B. Electrostatic instrument
C. Moving coil instrument
D. Any of the above
Various adjustments in an energy meter include_______________?
A. light load or friction
B. lag and creep
C. overload and voltage compensation
D. temperature compensation
Which of the following is measured by using a vector voltmeter ?
A. Amplifier gain and phase shift
B. Filler transfer functions
C. Complex insersion loss
D. All of the above
The power of a n-phase circuit can be measured by using a minimum of_______________?
A. (n – 1) wattmeter elements
B. N wattmeter elements
C. (n + 1) wattmeter elements
D. 2n wattmeter elements