MCQ PRACTICE - SEM -I MODULE - I

Bipin June 03, 2024 0

Electronics MCQs

1. What is the meaning of maximum safe reverse voltage across a diode?

a) PIV voltage
b) Knee voltage
c) Break down voltage
d) Reverse break down voltage

2. What is the peak inverse voltage of germanium diode?

a) 0.3 V
b) 0.7 V
c) 0.8 V
d) 1 V

3. Which is the first step followed in troubleshooting of electronic circuit?

a) Thermal test
b) Chemical test
c) Mechanical test
d) Physical and Sensory test

4. Which diode is used in low power communication circuits?

a) Signal diodes
b) Rectifier diodes
c) Switching diodes
d) High power diodes

5. What is the process of adding impurities to a pure semiconductor material?

a) Doping
b) Etching
c) Forming
d) Diffusion

6. Which impurity is added to form P-type semiconductor material?

a) Arsenic
b) Gallium
c) Antimony
d) Phosphorus

7. Which impurity is added to pure semiconductor to form ‘N-type’ material?

a) Boron
b) Indium
c) Arsenic
d) Gallium

8. What is the name of the process of converting AC into DC voltage?

a) Inverting
b) Rectifying
c) Amplifying
d) Demodulating

9. What is the name of the circuit diagram?

a) Bridge rectifier
b) Amplifier circuit
c) Regulator circuit
d) Modulator circuit

10. What is the output pulse frequency of the full wave rectifier with an input frequency of 50 Hz?

a) 40 Hz
b) 60 Hz
c) 100 Hz
d) 200 Hz

11. What is the disadvantage of the two diode full wave rectifier compared with a bridge rectifier?

a) DC output level is higher
b) The ripple frequency is higher
c) The need of Centre tapped transformer
d) Each diode carries half the load current

12. What is the output frequency of the pulse setting DC in a two diode full-wave rectifier?

a) Half of the input A/C frequency
b) Double the input A/C frequency
c) Same frequency of the A/C input
d) Three times the input A/C frequency

13. Which active component is used for AC to DC converter in a rectifier circuit?

a) Transformer
b) Diode
c) Capacitor
d) Resistor

14. Which rectifier circuit is used for four diodes?

a) Full wave
b) Half wave
c) Bridge
d) Two half wave

15. What type of ripple filter circuit is used for large load current requirements?

a) LC filter
b) RC filter Inductor
c) Input filter
d) Capacitor Input filter

Electronics MCQs