MCQ PRACTICE - SEM -I MODULE - I

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

• PIV voltage 
• Knee voltage 
• Break down voltage 
• Reverse break down voltage 

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

• 0.3 V
• 0.7 V
• 0.8 V
• 1 V

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

• Thermal test 
• Chemical test
• Mechanical test 
• Physical and Sensory test

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

• Signal diodes
• Rectifier diodes 
• Switching diodes 
• High power diodes

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

• Doping
• Etching 
• Forming
• Diffusion 

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

• Arsenic
• Gallium 
• Antimony
• Phosphorus

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

• Boron 
• Indium 
• Arsenic 
• Gallium

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

• Inverting 
• Rectifying 
• Amplifying 
• Demodulating 

9. What is the name of the circuit diagram?

• Bridge rectifier 
• Amplifier circuit
• Regulator circuit
• Modulator circuit

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

• 40 Hz 
• 60 Hz
• 100 Hz 
• 200 Hz

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

• DC output level is higher 
• The ripple frequency is higher
• The need of Centre tapped transformer
• Each diode carries half the load current

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

• Half of the input A/C frequency 
• Double the input A/C frequency 
• Same frequency of the A/C input 
• Three times the input A/C frequency

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

• Transformer 
• Diode 
• Capacitor 
• Resistor

14. Which rectifier circuit used for four diodes?

• Full  wave 
• Half  wave 
• Bridge 
• Two half wave 

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

• LC filter 
• RC filter Inductor I
• Input filter 
• Capacitor Input filter