NTDC SUB Station Operator Past Paper | 2024

____ is used for the measurement of inductance.

1. Hay Bridge
2. Wheatstone Bridge
3. Kelvin Bridge
4. RLC Meter

A ___ meter is used as a null detector in a Wheatstone bridge.

1. Voltmeter
2. Galvanometer
3. Ammeter
4. Ohmmeter

A causal system depends upon :

1. Future input values
2. Only future input values
3. Only present input values
4. Present and past input values

Which motor has an unsymmetrical rotor?

1. Synchronous Motor
2. Induction Motor
3. Reluctance Motor
4. DC Motor

How many slips are required in delta connection of induction motor?

1. 5
2. 4
3. 3
4. 6

Four resistors, each with a value of 68 ohms, are connected in parallel across a 220 V source. What is the total current (I)?

1. 5.88 A
2. 12.94 A
3. 8.82 A
4. 15.29 A

Apostasy movement took place in the khilafat of Hazrat :

1. Hazrat Abu bakar (R.A)
2. Hazrat Ali( R.A)
3. Hazrat Umar(R.A)
4. Hazrat Usman (R.A)

A marriage is dissolved in case either the husband or wife becomes :

1. Wealthy
2. Deceased
3. Divorced
4. None

Which term is defined as the measure of an instrument by which it is error-free?

1. Precision
2. Sensitivity
3. Resolution
4. Accuracy