Electrical Engineering Mcqs

When SCR starts conducting, then _____________ loses all control?

(A) Gate

(B) Cathode

(C) Anode

(D) None of the above

Submitted By: Ali Uppal


An SCR combines the features of ____________?

(A) A rectifier and resistance

(B) A rectifier and transistor

(C) A rectifier and capacitor

(D) None of the above

Submitted By: Ali Uppal


An SCR is turned off by _________________?

(A) Reducing anode voltage to zero

(B) Reducing gate voltage to zero

(C) Reverse biasing the gate

(D) None of the above

Submitted By: Ali Uppal


The control element of an SCR is ______________?

(A) Cathode

(B) Anode

(C) Anode supply

(D) Gate

Submitted By: Ali Uppal


In the normal operation of an SCR, anode is __________ w.r.t. cathode?

(A) At zero potential

(B) Negative

(C) Positive

(D) None of the above

Submitted By: Ali Uppal


An SCR behaves as a____________switch?

(A) Unidirectional

(B) Bidirectional

(C) Mechanical

(D) None of the above

Submitted By: Ali Uppal


In normal operation of an SCR, gate is _____________w.r.t. cathode?

(A) Positive

(B) Negative

(C) At zero potential

(D) None of the above

Submitted By: Ali Uppal


An SCR is sometimes called ____________?

(A) Triac

(B) Diac

(C) Unijunction transistor

(D) Thyristor

Submitted By: Ali Uppal


An SCR is a solid state equivalent of ______________?

(A) Triode

(B) Pentode

(C) Gas-filled triode

(D) Tetrode

Submitted By: Ali Uppal


An SCR has three terminals viz ________________?

(A) Cathode, anode, gate

(B) Anode, cathode, grid

(C) Anode, cathode, drain

(D) None of the above

Submitted By: Ali Uppal