A sensitive galvanometer produces large deflection for a_______________?
(A) small value of current
(B) large value of current
(C) large value of power
(D) large value of voltage
(D) none of the above
Volt box is a component to_____________?
(A) extend voltage range
(B) measure voltage
(C) compare voltage in a box
(D) none of the above
Commonly used standard capacitor is______________?
(A) spherical type
(B) concentric cylindrical type
(C) electrostatic type
(D) multilayer parallel plate type
Commonly used instruments in power system measurement are_______________?
(A) induction
(B) moving coil or iron
(C) rectifier
(D) electrostatic
In Weston synchronoscope the moving coil is connected across______________?
(A) bus-bars
(B) incoming alternator
(C) fixed coils
(D) any of the above
The ratio of maximum displacement deviation to full scale deviation of the instrument is called_______________?
(A) static sensitivity
(B) dynamic deviation
(C) linearity
(D) precision or accuracy
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
(D) any of the above
The principle on which vector voltmeter is based is_____________?
(A) that it works on the principle of complex variation
(B) that it measures the response of linear ramp voltage
(C) same as digital meter
(D) that it measures the amplitude of a single at two points and at the same time measures their phase difference
In an energy meter braking torque is produced to________________?
(A) safe guard it against creep
(B) brake the instrument
(C) bring energy meter to stand still
(D) maintain steady speed and equal to driving torque
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