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RRB/SSC JE Electrical 2019 || Three Phase Induction Motors Quiz || Previous Year Questions
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Question 1
Which of the following is an AC motor?
Question 2
The number of slip rings of a single-phase and a three-phase converter are respectively __________.
Question 3
Which one of the following is a speed control method of three-phase squirrel cage induction motor?
Question 4
In below Figure, the rotor frequency is ……………..when the motor is at standstill.
Question 5
A voltmeter gives 120 oscillations per minute when connected to the rotor of an induction motor. The supply frequency is 50 Hz. The slip of the motor is
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Aug 14ESE & GATE EE
