Silicon Controlled Rectifiers MCQ Questions & Answers

1.
An SCR is made of ___________

A. Germanium

B. Silicon

C. Carbon

D. None of the above

Answer & Solution Discuss in Board Save for Later

2.
When SCR starts conducting, then ___________ loses all control

A. Gate

B. Cathode

C. Anode

D. None of the above

Answer & Solution Discuss in Board Save for Later

3.
An SCR is a ___________ triggered device

A. Voltage

B. Current

C. Voltage as well as current

D. None of the above

Answer & Solution Discuss in Board Save for Later

4.
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

Answer & Solution Discuss in Board Save for Later

5.
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

Answer & Solution Discuss in Board Save for Later

6.
An SCR has ___________ pn junctions

A. Two

B. Three

C. Four

D. None of the above

Answer & Solution Discuss in Board Save for Later

7.
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

Answer & Solution Discuss in Board Save for Later

8.
An SCR behaves as a ___________ switch

A. Unidirectional

B. Bidirectional

C. Mechanical

D. None of the above

Answer & Solution Discuss in Board Save for Later

9.
An SCR is a solid state equivalent of ___________

A. Triode

B. Pentode

C. Gas-filled triode

D. Tetrode

Answer & Solution Discuss in Board Save for Later

10.
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

Answer & Solution Discuss in Board Save for Later

Silicon Controlled Rectifiers MCQ Questions & Answers | Electrical Engineering

1. An SCR is made of ___________

Answer & Solution

2. When SCR starts conducting, then ___________ loses all control

Answer & Solution

3. An SCR is a ___________ triggered device

Answer & Solution

4. An SCR can exercise control over ___________ of a.c. supply

Answer & Solution

5. In the normal operation of an SCR, anode is ___________ w.r.t. cathode

Answer & Solution

6. An SCR has ___________ pn junctions

Answer & Solution

7. In normal operation of an SCR, gate is ___________w.r.t. cathode

Answer & Solution

8. An SCR behaves as a ___________ switch

Answer & Solution

9. An SCR is a solid state equivalent of ___________

Answer & Solution

10. In an SCR circuit, the angle of conduction can be changed by ___________

Answer & Solution

1.
An SCR is made of ___________

2.
When SCR starts conducting, then ___________ loses all control

3.
An SCR is a ___________ triggered device

4.
An SCR can exercise control over ___________ of a.c. supply

5.
In the normal operation of an SCR, anode is ___________ w.r.t. cathode

6.
An SCR has ___________ pn junctions

7.
In normal operation of an SCR, gate is ___________w.r.t. cathode

8.
An SCR behaves as a ___________ switch

9.
An SCR is a solid state equivalent of ___________

10.
In an SCR circuit, the angle of conduction can be changed by ___________