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SSC JE EE : Technical Quiz 23

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Question 1

Which of the following statement is correct.

Question 2

The condition of operation of synchronous condenser is given by

Question 3

The function of the _____ is to facilitate collection of current from the armature conductors.

Question 4

A register capable of incrementing and/or decrementing its contents is called ?

Question 5

At what condition, does the corona start, if ES is the electrical stress and ECR is the critical voltage?

Question 6

Which of the following test is used to determine the inertia of the rotor?

Question 7

In a series resonance circuit, the impedance at half power frequencies is:

Question 8

A network has 8 nodes and 3 independent loops. The number of branches in the network is

Question 9

Consider a three phase, 415 V, 50 Hz, 10 HP induction motor. Assume efficiency be 75% and power factor be 0.8. find the rating of the fuse for safe operating of the machine?

Question 10

Due to inductive effect of pressure coil the wattmeter.

Question 11

Calculate the zero-sequence current in a three-phase system whose line current are given below:

Ia = 4 + j6 A,

Ib = -3 + j8 A,

Ic = 2 - j5 A

Question 12

In motor operations, if at any time _______, the motor will accelerate.

Question 13

To increase the current sensitivity below 10 mV, electronic instrument uses

Question 14

If the frequency of supply increased, then which effect can be observed?

Question 15

A 200 turn solenoid develops an average induced voltage of 50 V. Over what time interval must a flux change of 0.05 Wb occur to produce such a voltage?

Question 16

Find the voltage Vab in the circuit shown below:

Question 17

Which of the following property is not correct for ideal material for the filament of Incandescent Lamps?

Question 18

The armature core of a DC machine is laminated to minimize.

Question 19

According to the admittance triangle, which of the following is not true (symbols having their usual meanings).

Question 20

Which device is used to reduce the steepness of the wave front of a particular surge in the transmission lines?
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