SSC JE Electrical Engineering 22nd Jan 2018 Shift-2

Instructions

For the following questions answer them individually

Question 151

Commutator in DC generator is used for

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Question 152

Tappings of a transformer are provided

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Question 153

DC machine windings are

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Question 154

The armature winding is connected to the external power source through a

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Question 155

The emf induced in the dc generator armature winding is

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Question 156

In an Auto transformer a part of energy transfer is through

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Question 157

Voltage regulation of transformer is given by

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Question 158

Which is the only transformer whose primary and secondary are connected to each other electrically?

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Question 159

In a 3-phase induction motor a balanced three phase supply is with electrical angle separation

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Question 160

The slip of induction motor 0.04 and frequency of motor 60 hz.Hence, the rotor current frequency

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