Home / Engineering / Power Electronics MCQs / Page 18

Power Electronics MCQs | Page - 18

Dear candidates you will find MCQ questions of Power Electronics here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.

M

Mr. Dubey • 51.47K Points
Coach

Q. 171) IGT stands for

(A) Insulated gate bipolar transistor
(B) Insulated gate bidirectional transistor
(C) Inductive gate bipolar transistor
(D) Inductive gate bidirectional transistor
View Answer Discuss Share

M

Mr. Dubey • 51.47K Points
Coach

Q. 172) Number of PN junction in an SCR is

(A) Two
(B) Three
(C) Four
(D) Five
View Answer Discuss Share

M

Mr. Dubey • 51.47K Points
Coach

Q. 173) In a silicon controlled rectifier, the load is connected

(A) Across anode
(B) In series with anode
(C) Across cathode
(D) In series with cathode
View Answer Discuss Share

M

Mr. Dubey • 51.47K Points
Coach

Q. 174) For mercury arc rectifiers, the anode is usually made of

(A) Aluminium
(B) Copper
(C) Tungsten
(D) Graphite.
View Answer Discuss Share

M

Mr. Dubey • 51.47K Points
Coach

Q. 175) In a phase controlled 3 phase ac voltage controller, the harmonic present is

(A) 2
(B) 3
(C) 5
(D) 7
View Answer Discuss Share

M

Mr. Dubey • 51.47K Points
Coach

Q. 176) The maximum firing angle in the half wave controlled regulator is

(A) 180 degree
(B) 190 degree
(C) 200 degree
(D) 210 degree
View Answer Discuss Share

M

Mr. Dubey • 51.47K Points
Coach

Q. 177) The on - state voltage drop of IGBT consists of

(A) Drop across the collector junction
(B) Drop across the drift region
(C) Drop across MOSFET portion
(D) All of these
View Answer Discuss Share

M

Mr. Dubey • 51.47K Points
Coach

Q. 178) To detect an over - current fault condition, the most reliable method is to connect a

(A) Current sensor across IGBT
(B) Voltage sensor across IGBT
(C) Current sensor in series with IGBT
(D) Voltage sensor in series with IGBT
View Answer Discuss Share

M

Mr. Dubey • 51.47K Points
Coach

Q. 179) The IGBT resulted in higher switching speed and lower energy losses. It can be used for

(A) Uninterruptible power supplies
(B) Induction heating system
(C) Constant voltage and frequency power supplies
(D) All of these
View Answer Discuss Share

M

Mr. Dubey • 51.47K Points
Coach

Q. 180) An ideal diode is

(A) Unidirectional
(B) Bidirectional
(C) Fixed voltage polarity
(D) Only (a) and (c)
View Answer Discuss Share