1000+ Power Electronics Quiz Questions and Answers Pdf - 2

Question: 6

Thyristor can be protected from over voltages by using

(A) snuber circuit

(B) heat sink

(C) fuse

(D) voltage clamping device

Question: 7

IGBT is used for application in

(A) high power

(B) low power

(C) medium power

(D) none of these

Question: 8

Leakage current flows through the thyristor in

(A) forward conduction mode

(B) both forward and reverse blocking mode

(C) reverse blocking mode

(D) forward blocking mode

Question: 9

Internal cycle control

(A) is very fast in action

(B) does not introduce harmonics in the supply lines

(C) can be used only for loads with large time constants

(D) cannot used on inductive loads

Question: 10

Under normal operating condition voltage clamping device offers impedance of

(A) moderate value

(B) zero value

(C) low value

(D) high value