Hello Diploma Students in this article we have provided Basic Electronics Mcq Questions and Answers Pdf. In this Basic Electronics Mcq Online Test We have Selected 30 Important Questions from Previous Year Model Answer Papers and Made A possible Set of Questions which can Help Students in Preparation for Their Upcoming Winter 2021 Exams.

This Basic Electronics Mcq with Answers Pdf Is Ideal for Candidates who are in 1st Year of Diploma in Computer Engineering. By Referring this Basic Electronics Multiple Choice Questions Diploma in Computer Engineering Students Can Practice for their Upcoming Exams. We Have Also Provided Basic Electronics Mcq Pdf Link at the end of the Quiz You can Download it for Future Refrence.

22225 Basic Electronics Multiple Choice Questions

1. For 180 K ohm resistor with 10 % tolerance, the color band will be in the sequence of
a. Brown-grey-yellow-gold
b. Brown-grey-yellow-silver
c. Brown-blue-yellow-silver
d. Brown-grey-yellow-gold

Correct!

Wrong!

2. Transistor is
a. A passive component
b. Active component
c. None of these
d. Both a & b

Correct!

Wrong!

3. What is the unit of inductance?
a. Joule
b. Farad
c. Henry
d. Watts

Correct!

Wrong!

4. One Pico farad is Equal to?
a. 10 6 farad
b. 10-12 farad
c. 10 −6 farad
d. 10 −12 farad

Correct!

Wrong!

5. A CRO is a
a. Cathode ray oscillator
b. Cathode ray oscilloscope
c. Capacitor- resistor oscillator
d. Capacitor- resistor output

Correct!

Wrong!

6. The DC current through each diode in a bridge rectifier equals:
a. The load current
b. Half the DC load current
c. Twice the DC load current
d. One-fourth the DC load current

Correct!

Wrong!

7. Which block indicates a smooth dc output in power supply Block Diagram?
a. Transformer
b. Filter
c. Rectifier
d. Regulator

Correct!

Wrong!

8. When used as a voltage regulator, Zener diode is normally
a. Not biased
b. Forward biased
c. Reverse biased
d. None of the above

Correct!

Wrong!

9. The barrier potential of a Germanium diode is?
a. 0.3 volt
b. 0.3 eV
c. 0.7 volt
d. 0.7 eV

Correct!

Wrong!

10. A Zener diode has …… breakdown
a. Undefined
b. Zero
c. Sharp
d. None of the above

Correct!

Wrong!

11. In a BJT
a. The base region is sandwiched between emitter & collector
b. The collector is sandwiched between base & emitter
c. The emitter region is sandwiched between base & collector
d. None of the above

Correct!

Wrong!

12. Amplifiers & oscillators using BJT, operate in …… region
a. Inverted mode
b. Active
c. Cut off
d. Saturation

Correct!

Wrong!

13. Transistor works as an open switch when the emitter junction is ….. biased & collector junction is …. biased
a. Forward, forward
b. Reverse, reverse
c. Reverse, forward
d. Forward, reverse

Correct!

Wrong!

14. When a transistor is in active region the resistance is between
a. Emitter to collector
b. Base to collector
c. Emitter to base
d. All of the above

Correct!

Wrong!

15. The value of β of a transistor is ……
a. Between 20 & 500
b. 1
c. Less than 1
d. 0

Correct!

Wrong!

16. Junction Field Effect Transistor (JFET) contains how many diodes?
a. 4
b. 3
c. 2
d. 1

Correct!

Wrong!

17. A “U” shaped, opposite-polarity material built near a JFET-channel center is called the:
a. Gate
b. Block
c. Drain
d. Heat sink

Correct!

Wrong!

18. With the E-MOSFET, when gate input voltage is zero, drain current is:
a. At saturation
b. Zero
c. IDSS
d. Widening the channel

Correct!

Wrong!

19. How will electrons flow through a p-channel JFET?
a. From source to drain
b. From source to gate
c. From drain to gate
d. From drain to source

Correct!

Wrong!

20. The pinch-off voltage of a JFET is about ….
a. 5 V
b. 0.6 V
c. 15 V
d. 25 V

Correct!

Wrong!

21. Inductor is
a. Active component
b. Passive component
c. None of these
d. Both a & b

Correct!

Wrong!

22. The output from an unfiltered half wave or full wave rectifier is a
a. Smooth DC voltage
b. Steady DC voltage
c. Pulsating DC voltage
d. AC voltage

Correct!

Wrong!

23. What are the main characteristics of a resistor
a. Current & voltage
b. Current & power
c. Resistance & power
d. Resistance & current

Correct!

Wrong!

24. Inductor is
a. Active component
b. Passive component
c. None of these
d. Both a & b

Correct!

Wrong!

25. In electronics the term IC denotes
a. Industrial control
b. Integrated circuits
b. Integrated circuits
d. International circuits

Correct!

Wrong!

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