POWER SUPPLY CIRCUITS - Practice Mode

1) What is the maximum safe reverse voltage rating of a diode?

PIV voltage Knee voltage Break down voltage Forward break down voltage

Correct Answer: PIV voltage

2) Which is the first step followed in troubleshooting of electronic circuit?

Thermal test Chemical test Mechanical test Physical and sensory test

Correct Answer: Physical and sensory test

3) Which diode is used in low power communication circuits?

Signal diodes Rectifier diodes Switching diodes High power diodes

Correct Answer: Signal diodes

4) 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 bulky transformer Each diode carries half the load current

Correct Answer: The need of bulky transformer

5) What is the process of adding impurities to a pure semi conductor material?

Doping Etching Forming Diffusion

Correct Answer: Doping

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