A. Gate
B. Cathode
C. Anode
D. None of the above
✅ The correct answer is option A.
SCR (Silicon Controlled Rectifiers) MCQs
An SCR can exercise control over____________of a.c. supply?
A. Positive half-cycles only
B. Negative half-cycles only
C. Both positive and negative half-cycles
D. Positive or negative half-cycles
✅ The correct answer is option D.
An SCR is made of_______________?
A. Germanium
B. Silicon
C. Carbon
D. None of the above
✅ The correct answer is option B.
An SCR has ___________semiconductor layers?
A. Two
B. Three
C. Four
D. None of the above
✅ The correct answer is option C.
An SCR has three terminals viz ________________?
A. Cathode, anode, gate
B. Anode, cathode, grid
C. Anode, cathode, drain
D. None of the above
✅ The correct answer is option A.
An SCR is sometimes called ____________?
A. Triac
B. Diac
C. Unijunction transistor
D. Thyristor
✅ The correct answer is option D.
In an SCR circuit, the angle of conduction can be changed by__________________?
A. Changing anode voltage
B. Changing gate voltage
C. Reverse biasing the gate
D. None of the above
✅ The correct answer is option B.
An SCR is a solid state equivalent of ______________?
A. Triode
B. Pentode
C. Gas-filled triode
D. Tetrode
✅ The correct answer is option C.
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
✅ The correct answer is option A.
An SCR has __________ pn junctions?
A. Two
B. Three
C. Four
D. None of the above
✅ The correct answer is option B.