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MAHATRANSCO AE Recruitment 2017- Electrical Quiz 25
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Question 1
Consider the following statements with regard to a GTO:
1) The turn-off gain of the GTO is large.
2) Large negative gate current pulses are required to turn off the GTO.
3) GTO has large reverse blocking capability
Which of the above statemetns is/are correct?
1) The turn-off gain of the GTO is large.
2) Large negative gate current pulses are required to turn off the GTO.
3) GTO has large reverse blocking capability
Which of the above statemetns is/are correct?
Question 2
A large dc motor is required to control the speed of the blower from a 3-phase ac source. The suitable ac to dc converter is, 3-phase
Question 3
The main application of multilevel inverter is in
Question 4
What are the advantages of switching power supplies over linear power supplies?
1. The devices operate in linear/active region.
2. The devices operate as switches.
3. Power losses are less.
Select the correct answer using the code given below:
1. The devices operate in linear/active region.
2. The devices operate as switches.
3. Power losses are less.
Select the correct answer using the code given below:
Question 5
How can the 3rd harmonic current be filtered in Thyristor-controlled reactor?
Question 6
The device used for switching in a switched Mode Power supply is
Question 7
A voltage source inverter is used when source and load inductances are respectively
Question 8
Which one of the following statements is not correct?
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Jun 23ESE & GATE EE
