A. instrumental errors
B. environmental errors
C. observational errors
D. all of the above
0
E.m.f. of a Weston cell is accurately measured by________________?
0
Operating torques in analogue instruments are_______________?
A. electrostatic voltmeter
B. hot wire voltmeter
C. isothermal voltmeter
D. electrodynamic voltmeter
0
The gravity controlled instrument has crowded scale because current is proportional to________________?
A. deflecting and control
B. deflecting and damping
C. deflecting, control and damping
D. vibration and balancing
0
If an instrument has cramped scale for larger values, then it follows________________?
A. balancing weight
B. deflection angle
C. sine of deflection angle
0
A sensitive galvanometer produces large deflection for a_______________?
A. square law
B. logarithmic law
C. uniform law
D. none of the above
0
Volt box is a component to_____________?
A. small value of current
B. large value of current
C. large value of power
D. large value of voltage
E. none of the above
0
Commonly used standard capacitor is______________?
A. extend voltage range
B. measure voltage
C. compare voltage in a box
D. none of the above
0
Commonly used instruments in power system measurement are_______________?
A. spherical type
B. concentric cylindrical type
C. electrostatic type
D. multilayer parallel plate type
0
In Weston synchronoscope the moving coil is connected across______________?
A. induction
B. moving coil or iron
C. rectifier
D. electrostatic
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