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SSC JE Electrical 2019 with solution SET-1

SSC JE Electrical 2019 with solution SET-1
 The function of condenser in a Thermal power plant is:

Condense used steam into water
Purify steam
Purify water
Condense water

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SSC JE Electrical 2019 with solution SET-1
 A single-phase circuit’s power factor can be measured with a/an

Wattmeter alone
Energy meter alone
Combination of a voltmeter, ammeter, and wattmeter
Combination of a voltmeter and ammeter

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SSC JE Electrical 2019 with solution SET-1
 Two inductors of 4H and 6H are connected in series. The equivalent inductance of this combination is

4 H
6 H
2.4 H
10 H

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Total inductance when inductor are connected in series
L = L1 + L2
L = 4 + 6 =10H
 

SSC JE Electrical 2019 with solution SET-1
 With the current direction marked in the circuit shown, the net voltage applied is

V2
−(V2 − V1)
V1
(V2 − V1)

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Net voltage = −V2 + V1
Net voltage = −(V2 − V1)
 

SSC JE Electrical 2019 with solution SET-1
 Extension of moving iron ammeter range can be done by using

Capacitor
Multiplier
Inductor
Shunt

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SSC JE Electrical 2019 with solution SET-1
Hunting occurs in a/an motor

Induction
DC series
Synchronous
DC shunt

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Sudden changes of load on synchronous motors may sometimes set up oscillations that are superimposed upon the normal rotation, resulting in periodic variations of a very low frequency in speed. This effect is known as hunting or phase-swinging.
 

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