ATT TEST 8 QUESTIONS AND ANSWERS
100% Verified Graded A+
1. What are 5 parts of a power supply?
Answer: Input, rectifier, filter, regulator, protection
2. Which two parts of a power supply are optional?
Answer: Regulator and protection
3. What is the purpose of a power supply?
Answer: To convert AC power into smooth DC power
4. What does the input of a power supply do?
Answer: Step up or down the AC input voltage
5. What does the rectifier do in a power supply?
Answer: Changes AC into pulsating DC
6. What does the filter do in a power supply?
Answer: Changes pulsating DC into smooth DC
7. How type of components do filters use?
, Answer: Reactive components
8. What does a regulator do in a power supply?
Answer: maintains the output voltage at a constant level despite changes in load current
9. What does the protection circuit do in power supply?
Answer: Prevents damage to power supply if load becomes faulty, limits or disables output
10. The half wave rectifier is the same as what circuit?
Answer: Series limiter
11. Which rectifier is the least efficient using only half the input?
Answer: Half-wave
12. Which two rectifiers require two input signals 180 degrees out of phase?
Answer: -
Full-wave and bridge
13. Which rectifier uses a center tapped transformer?
Answer: Full wave
14. How is frequency determined for half wave rectifier?
Answer: Output frequency is same as input frequency
15. How is frequency determined for full wave rectifier?
Answer: Output is twice the input frequency
100% Verified Graded A+
1. What are 5 parts of a power supply?
Answer: Input, rectifier, filter, regulator, protection
2. Which two parts of a power supply are optional?
Answer: Regulator and protection
3. What is the purpose of a power supply?
Answer: To convert AC power into smooth DC power
4. What does the input of a power supply do?
Answer: Step up or down the AC input voltage
5. What does the rectifier do in a power supply?
Answer: Changes AC into pulsating DC
6. What does the filter do in a power supply?
Answer: Changes pulsating DC into smooth DC
7. How type of components do filters use?
, Answer: Reactive components
8. What does a regulator do in a power supply?
Answer: maintains the output voltage at a constant level despite changes in load current
9. What does the protection circuit do in power supply?
Answer: Prevents damage to power supply if load becomes faulty, limits or disables output
10. The half wave rectifier is the same as what circuit?
Answer: Series limiter
11. Which rectifier is the least efficient using only half the input?
Answer: Half-wave
12. Which two rectifiers require two input signals 180 degrees out of phase?
Answer: -
Full-wave and bridge
13. Which rectifier uses a center tapped transformer?
Answer: Full wave
14. How is frequency determined for half wave rectifier?
Answer: Output frequency is same as input frequency
15. How is frequency determined for full wave rectifier?
Answer: Output is twice the input frequency
