SSC JE Electrical Engineering 23rd Jan 2018 Shift-1

Instructions

For the following questions answer them individually

Question 181

For which of the following DC motors,is the typical field of application mentioned?

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Question 182

High pressure mercury discharge lampsare not used in

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Question 183

Which of the following lamp gives nearly monochromatic light?

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Question 184

Powerfactor is highest in case of

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Question 185

The process of heat transfer during the re-entry of satellites and missiles at very high speeds, into earth’s atmosphere is known as .....

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Question 186

A pole-changing squirrel cage induction motor employed in derricks has four, eight and twenty four pole. The lowest speed is used in

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Question 187

- In heating the ferro-magnetic materials by induction heating, heat is produced owing to

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Question 188

A 30kW rated output, 400V, 3 phase delta connected, 4-pole, 50 Hz induction motorfull load slip of 5%. If the ratio of standstill reactance to resistance per rotor phaseis 4 estimate the full load speed.

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Question 189

The conduction band is

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Question 190

The motorthat is used for intermittent, high torque loadsis ../....

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