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SSC JE 2017: Mini Mock 1

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Question 1

In a common emitter amplifier, the non-bypassed emitter resistance provides __________.

Question 2

A BJT is said to be operating in the saturation region, if:

Question 3

For V-curves for a synchronous motor the graph is drawn between:

Question 4

The rated speed of a given d.c. shunt motor is 1050 r.p.m. To run this machine at 1200 r.p.m. the following speed control scheme will be used:

Question 5

Regulation of an alternator supplying resistive or inductive load is:

Question 6

Internal heating of capacitor is usually attributed to________.

Question 7

Resistance temperature coefficient of copper at 20

C is

Question 8

Which insulation is most widely used for covering wires/cables used in internal wiring ?

Question 9

The magnetic potential difference in a magnetic circuit is given by:

Question 10

Flow of electrons in the circuit constitutes ____________.

Question 11

Fleming's left hand rule is used to find ___________.

Question 12

The relative permeability of a material is 0.95. The material is ________.

Question 13

Magnetic recording tape is most commonly made from _________.

Question 14

An inductor is supplied from a sinusoidal voltage source. The magnetic field energy in the inductor changes from peak value to minimum value in 10 msec. The supply frequency is

Question 15

The voltage of a circuit is measured by a voltmeter having input impedance comparable with the output impedance of the circuit thereby causing error in voltage measurement. This error may be called as_________.