SSC JE EE Quiz: Electrical and Electric Instrumentation Booster Quiz-10

Consider the following statements

1. The smallest charge in the input quantity which can be detected with its certainty is known as precision.

2. Closeness of reading with its true value is known as accuracy.

3. Ratio of infinite signal change in output to infinite signal change in input is known as sensitivity.

Which of the above statements are correct?

Over friction or creeping error in energy meter is reduced by

An induction type energy meter runs at a speed of 80 rpm. If the distance of the braking magnetic field from the center of disc is doubles. The speed of the energy meter.

Consider the following statements.

1. Friction compensation is the main cause of creeping in induction type energy meters.

2. Compensating coil is employed to compensate for the error caused by power factor wattmeter.

3. The pressure coil of energy meter is high resistive.

Which of the above statements are correct?

De sauty bridge is used for measurement of

The standardization of AC potentiometer is done by

The user can adjust brightness and sharpness of image in a CRO by varying _____ and _________ respectively.

A 3  DVM has a voltage range of (0 – 10 V). Find the maximum value displayed?

If the Lissajous pattern obtained on the screen is in the shape of an ellipse in the I and III quadrant, then the phase difference between vertical and horizontal input signals will be?