Basic Electronics Multiple choice questions MCQs – Questions Answers

Basic Electronics Multiple choice questions MCQs – Questions Answers

1. The ripple factor of a power supply is …

a) diode rating

b) filter efficiency

c) power output

d) voltage regulation

Answer - Click Here:
C

2. LED stands for …

a) light energy display

b) light emitting display

c) light emitting  detector

d) light emitting diode

Answer - Click Here:
D

3. The  multimeter is an instrument  that measure

a) resistance

b) voltage

c)  current

d) all of these

Answer - Click Here:
D

4.  When the temperature of the semi-conductor is increased, the conductivity will …

a) decreases

b) increases

c) same every time

d) all of the above

Answer - Click Here:
A

5. Electrons emitted from hot metal surfaces is a process of …

a) static emission of electrons

b) current emission of electrons

c) thermionic emission of electrons

d) all of these

Answer - Click Here:
C

6. Common transistor has three leads named as ….

a) commom  emitter bias

b) emmitter collector case

c) collecctor  base emmitter

d) none of these

Answer - Click Here:
C

7. The function of zener diode is …

a) current amplifier

b) voltage amplifier

c) regulators

d) all of these

Answer - Click Here:
C

8. DSC means …

a) digital server omitter

b) digital storage oscilloscope

c) device storage omitter

d) none of these

Answer - Click Here:
B

 

9. The total number of electrons in an atom is termed as …
a)  atomic radius
 b) atomic weight
c)  atomic size
d)  atomic number

Answer - Click Here:
D

10. Which of the following logic gates are known as universal gates?

a) NOR, NAND, XNOR

b) XOR, NOR, NAND

c) NOT, AND, OR

d) NOR, NAND

Answer - Click Here:
D

11.

To store one BCD digit how many bits are needed?

a) 1

b) 2

c) 3

d) 4

Answer - Click Here:
D

12.  What is Avalanche breakdown in zener diode?

a) voltage multiplication

b) electric current multiplication

c) electrons are decelerated

d) rise in voltage

Answer - Click Here:
B