Related Questions

A circuit is disconnected by isolators when
A Line is energized
B There is no current in the line
C Line is on full load
D Circuit breaker is not open
Starting winding of a single phase motor of a refrigerator is disconnected from the circuit by means of a
A Magnetic relay
B Thermal relay
C Centrifugal switch
D None of the above
If A.C. voltage is applied to capacitive circuit, the alternating current can flow in the circuit because
A varying voltage produces the charging and dicharging currents
B of high peak value
C charging current can flow
D discharge current can flow
When a capacitor was connected to the terminal of ohmmeter, the pointer indicated a low resistance initially and then slowly came to infinity position. This shows that capacitor is
A Short-circuited
B All right
C Faulty
D None of the above
An ohmmeter is a
A moving iron instrument
B moving coil instrument
C dynamometer instrument
D none of the above
An open resistor, when checked with an ohmmeter reads
A Zero
B Infinite
C High but within tolerance
D Low but not zero
An ohmmeter is connected across an inductor and the pointer indicates zero ohms. The inductor is
A Good
B Open
C Shorted
D Partly shorted
The ohmmeter reading for a short circuited capacitor is
A infinity
B few kilo ohms
C few megohms
D zero
If an ohmmeter reading immediately goes practically to zero and stays there, capacitor is
A Charged
B Short-circuited
C Lossy
D Satisfactory
When the pointer of an analog ohmmeter reads close to zero, the resistor being measured is
A Overheated
B Shorted
C Open
D Reversed

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