SSC JE Electrical Engineering 23rd Jan 2018 Shift-1
Instructions
For the following questions answer them individually
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 .....
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
Question 187
- In heating the ferro-magnetic materials by induction heating, heat is produced owing to
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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