Electrical Drives MCQ

Which of the following are electrical braking methods ?

Which braking is not possible in series motor?

Polarity of supply voltage is reversed in which type of braking?

Full form of VVVF control

What type electric drive is used in cranes?

Electric drive is becoming more and more popular because

The basic elements of a electric drive are

Speed control by variation of field flux results in

High braking torque produced in

Which speed control method preferred for constant torque drive?

While operating on variable frequency supplies, the AC motor requires variable voltage in order to

Which of the following motor can be referred as a universal motor?

What is the unit of the apparent or complex power?

Which of the following are used in preventing the hunting phenomenon in synchronous generators?

Which one of the following methods would give a lower than the actual value of regulation of the alternator?

What is the unit of the distance?

Which of the following is the correct abbreviation of IFOC?

Which starting method is the best method in Induction motor?

Which of the following motor is a 1-Φ AC motor?

Which of the following test is used to determine the conditions where electric motors are being used?

Which of the following motor is used in recording instruments?

Which of the following is used to protect SCR from thermal conditions?

Which one of the element is used to make R load commutating?

Current Chopping is most severe in which of the following?

Which of the following type of grounding is used to suppress the capacitive effect?