A+ Power Supply Quiz: Wattage & Connector Types

1. Which of the following PSU specifications would be most suitable for a system consuming 350W under full load?

400W PSU

500W PSU

600W PSU

700W PSU

Submit

3. Which of the following would cause a PSU to enter protection mode and cut power?

Excessive heat or overcurrent condition

Operating at exactly rated wattage

Using a modular cable

Running at 80+ efficiency

Submit

5. True or False: Oversizing a power supply beyond system requirements significantly improves system stability and longevity.

True

False

6. What is the typical voltage range for the 3.3V rail in an ATX power supply?

3.0V to 3.6V

3.15V to 3.45V

3.5V to 4.0V

2.97V to 3.63V

Submit

8. Which power supply certification level represents the highest efficiency standard?

80+ Platinum

80+ Titanium

80+ Gold

80+ Silver

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10. True or False: A power supply operating at 80+ Bronze efficiency converts 85% of input power to usable output.

True

False

11. What is the primary purpose of the 24-pin ATX connector on a modern motherboard?

Deliver main system power to the motherboard

Connect the CPU cooler fan

Provide power exclusively to RAM

Supply power to the graphics card

Submit

13. What is the voltage standard for the 12V rail in most modern ATX power supplies?

10V to 12.6V

11.4V to 12.6V

12V exactly

13V to 14V

14. Which power supply form factor is most commonly used in modern desktop computers?

SFX

ATX

TFX

CFX

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16. Which of the following is a disadvantage of a modular power supply?

Higher cost than non-modular designs

Reduced efficiency compared to fixed designs

Limited power delivery capability

Incompatibility with standard motherboards

Submit

18. What does the 80+ Gold rating on a power supply indicate?

The PSU operates at 80% efficiency or higher at typical loads

The PSU can deliver 80 amps maximum

The PSU costs more than 80 dollars

The PSU is designed for systems over 800 watts

19. Which power supply connector type has four pins and typically powers older CPUs?

8-pin CPU connector

4-pin Molex connector

6-pin PCI-E connector

15-pin SATA power connector

Submit

A+ Power Supply Quiz: Can You Pick the Right Wattage?

1. Which of the following PSU specifications would be most suitable for a system consuming 350W under full load?

2.

What first name or nickname would you like us to use?

2. The standby power consumption of a modern ATX PSU in sleep mode is typically less than ____ watts.

3. Which of the following would cause a PSU to enter protection mode and cut power?

4. A non-modular power supply has all cables permanently ____ to the power supply unit.

5. True or False: Oversizing a power supply beyond system requirements significantly improves system stability and longevity.

6. What is the typical voltage range for the 3.3V rail in an ATX power supply?

7. A redundant or backup power supply configuration is most commonly found in ____ systems.

8. Which power supply certification level represents the highest efficiency standard?

9. The SATA power connector has ____ pins and supplies power to solid-state drives and hard drives.

10. True or False: A power supply operating at 80+ Bronze efficiency converts 85% of input power to usable output.

11. What is the primary purpose of the 24-pin ATX connector on a modern motherboard?

12. A PCIe 8-pin connector provides power primarily to ____ components.

13. What is the voltage standard for the 12V rail in most modern ATX power supplies?

14. Which power supply form factor is most commonly used in modern desktop computers?

15. The 6-pin PCI-E power connector is commonly used to supply power to ____ cards.

16. Which of the following is a disadvantage of a modular power supply?

17. A high-end gaming PC with a 450W CPU and dual 300W GPUs requires approximately ____ watts.

18. What does the 80+ Gold rating on a power supply indicate?

19. Which power supply connector type has four pins and typically powers older CPUs?

20. A workstation with a 150W CPU, 75W GPU, and 50W for storage and peripherals should use a PSU of at least ____ watts.