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UPPSC AE Paper-1 Quiz-8

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Question 1

Tangential component of the magnetic field intensity on a perfect conductor will be

Question 2

Consider the following circuit shown in the figure. For series resonance, the value of coupling coefficient, k will be

Question 3

What is the SI unit for magnetic moment?

Question 4

A 5 kW, 200 V D.C. shunt motor has armature Resistance of 1 ohm and shunt field Resistance of 100 Ω. At no load, the motor draw 6 Amp from 200V supply and runs at 1000 r.p.m what is the total copper loss of the machine?

Question 5

A CRO is operated in sweep mode. A time varying signal s(t) = [5 + 100 sin 1000πt] is tested in AC coupling. The signal which will be displayed on screen while in AC coupling is

Question 6

A signal is ideally sampled at 80Hz and is passed through an ideal LPF with cut-off frequency of 10Hz. Then the output of the filter is of frequency?

Question 7

An alternate has 20%, 25% and 5% positive, negative and zero sequence reactance’s. What is the value of neutral grounding reactance so that the fault current for single line to ground fault is equal to rated line current?

Question 8

Three milliammeters with full scale currents 1 mA, 10 mA and 100 mA are connected in parallel and they read 0.2 mA, 0.5 mA and 2.5 mA respectively. Their internal resistances will be in ratio

Question 9

A lead compensator

1) Speeds up the transient response

2) Increase the margin of stability of a system

3) Helps to increase the system error constant though to a limited extent.

Which of the above statements are correct?

Question 10

A synchronous generator is connected to a grid. If the power input to the generator is increased, keeping excitation constant, then the effect on armature current Ia & load angle δ.
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Jun 8AE & JE Exams