Basic Electronics (3110016) MCQs

MCQs of Special purpose diodes and transistors

Showing 1 to 10 out of 38 Questions
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1.
A Zener diode is used as _______.
(a) An amplifier
(b) A voltage regulator
(c) A rectifier
(d) A multivibrator
Answer:

Option (b)

2.
A Zener diode is always _______ connected.
(a) Reverse
(b) Forward
(c) Either reverse or forward
(d) None of the above
Answer:

Option (a)

3.
A Zener diode utilities _______ characteristic for its operation.
(a) Forward
(b) Reverse
(c) Both forward and reverse
(d) None of the above
Answer:

Option (b)

4.
In the breakdown region, a zener diode behaves like a _______ source.
(a) Constant voltage
(b) Constant current
(c) Constant resistance
(d) None of the above
Answer:

Option (a)

5.
A zener diode is destroyed if it ________.
(a) Is forward biased
(b) Is reverse biased
(c) Carries more than rated current
(d) None of the above
Answer:

Option (c)

6.
A series resistance is connected in the zener circuit to ________.
(a) Properly reverse bias the zener
(b) Protect the zener
(c) Properly forward bias the zener
(d) None of the above
Answer:

Option (b)

7.
A zener diode is _______ device.
(a) A non-linear
(b) A linear
(c) An amplifying
(d) None of the above
Answer:

Option (a)

8.
A zener diode has _______ breakdown voltage.
(a) Undefined
(b) Sharp
(c) Zero
(d) None of the above
Answer:

Option (b)

9.
A PN junction that radiates energy as light instead of as heat is called a
(a) LED
(b) Photo-diode
(c) Photo-cell
(d) Zener diode
Answer:

Option (a)

10.
The capacitance of a varactor diode increases when reverse voltage across it
(a) Decreases
(b) Increases
(c) Breaks down
(d) Stores charge
Answer:

Option (a)

Showing 1 to 10 out of 38 Questions
1 2 3 4