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SSC JE Electrical 2019 with solution SET-2

SSC JE Electrical 2019 with solution SET-2
A _____ transformer is usually mounted on a pole of plinth?

Power
Distribution
Current
Potential

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SSC JE Electrical 2019 with solution SET-2
The torque angle of a 3-phase synchronous motor depends on its _____

Load
Speed
Excitation
Supply voltage

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SSC JE Electrical 2019 with solution SET-2
____comes under the category of high-frequency heating?

Eddy current heating
Resistance heating
Infrared heating
Arc heating

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SSC JE Electrical 2019 with solution SET-2
The input for a condenser in a steam power plant comes from a/an

Economizer
Turbine
Super heater
Air preheater

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Condenser – Condenser is a heat exchanger in which cooling water is circulated through the tubes. The exhaust steam from the turbine enters the condenser where it is cooled and converted to condensate (water).
 


SSC JE Electrical 2019 with solution SET-2
While estimating the overhead lines, if the number of poles required is 14, then what is the estimated number of earth sets required?

4
5
3
2

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While estimating the overhead lines, the first and last pole is always earth connected and after every 3rd electrical pole, the fourth pole is earthed. Therefore, the approximate number of required ground set = 4
 

SSC JE Electrical 2019 with solution SET-2
 The number of valence electrons of P and Si are respectively?

4 and 4
5 and 4
4 and 5
3 and 4

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

Phosphorus (P) has 15 electron i.e 2,8,5. Hence the number of electron in its outermost orbit is 5.
Silicon (Si) has 14 electron i.e 2,8,4. Hence the number of electrons in its outermost orbit is 4.

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