Timedora
Free Practice Quiz Question List

6 Power Supplies and Power Delivery Online Quiz Questions

Use this free practice quiz with 20 questions to review 6 Power Supplies and Power Delivery, test your knowledge, and prepare for your next test or exam.

20 questions
01
True or false
1 point

A higher 80 PLUS efficiency rating by itself proves that a PSU has better protections and is suitable for a particular PC. True or false?

  1. A

    True

  2. B

    False

02
Written response
1 point

Which PSU output rail supplies most of the power used by modern processors and graphics cards?

03
Written response
1 point

What is the name of the smaller common desktop PSU form factor compared with ATX?

04
Fill in the blank
1 point

The main power connection used by most desktop motherboards is the connector.

05
True or false
1 point

If a PSU fan is not spinning, that alone reliably proves the PSU has failed.

  1. A

    True

  2. B

    False

06
Choose one
1 point

A builder wants to install an SFX PSU in a compact case. Which check best helps confirm that the unit will physically fit?

  1. A

    Confirm the PSU form factor, dimensions, and case mounting and cable space.

  2. B

    Choose the PSU with the highest wattage so it will fit any case.

  3. C

    Check only that the PSU's fan can spin, because case dimensions do not matter.

07
Choose all
1 point

Select all the correctly matched PSU connectors and uses.

  1. A

    24-pin ATX — main power for most desktop motherboards

  2. B

    4+4-pin EPS/CPU — processor power through the motherboard

  3. C

    SATA power — power for SATA drives and some accessories

  4. D

    6+2-pin PCIe — processor power through the motherboard's CPU-power socket

08
Choose one
1 point

A replacement modular cable fits a PSU socket, but its model compatibility is unknown. What should the builder do?

  1. A

    Use any cable that fits the PSU socket, because modular cables have universal pinouts.

  2. B

    Use only cables specified for that exact PSU model or approved by its manufacturer.

  3. C

    Mix cables from different PSU models if their connectors have the same shape.

09
Fill in the blank
1 point

If a drive does not start, check that it has PSU power and any separate it requires.

10
Choose one
1 point

A PC starts but shuts down or restarts when a demanding game runs. Which response is best supported by the troubleshooting guidance?

  1. A

    Check PSU capacity, required GPU cables, and connector seating, while considering other possible faults.

  2. B

    Replace the PSU immediately, because under-load shutdowns prove it is defective.

  3. C

    Open the PSU enclosure and inspect its internal components.

11
Choose all
1 point

Select all the appropriate safety actions before opening a computer case to work on its PSU.

  1. A

    Shut down the computer and switch off the PSU.

  2. B

    Unplug the PSU's AC cord and disconnect external power.

  3. C

    Keep the PSU enclosure closed because internal components can retain hazardous charge.

  4. D

    Open the PSU enclosure to make sure it is fully discharged.

12
Open ended
1 point

A graphics-card power connector is unusually hot and discolored. What should the user do, and what should they avoid doing to the PSU?

13
Choose one
1 point

When installing a graphics card with a 12V-2x6 or 12VHPWR connection, which cable-handling approach is appropriate?

  1. A

    Fully insert the plug and avoid sharp bends or side pressure immediately at the connector, following the card and cable instructions.

  2. B

    Leave the plug slightly loose so it can move freely.

  3. C

    Bend the cable sharply at the connector to keep it away from other components.

14
True or false
1 point

A PSU's modularity determines how its cables attach; it does not determine the PSU's available power.

  1. A

    True

  2. B

    False

15
Choose one
1 point

What does an 80 PLUS label indicate about a PSU?

  1. A

    It certifies the PSU’s overall build quality and protections.

  2. B

    It indicates tested energy-efficiency performance at specified load levels.

  3. C

    It guarantees that the PSU is suitable for any PC with a compatible connector.

  4. D

    It states how much power the PSU continuously draws from the wall.

16
Choose one
1 point

You are selecting a PSU for a compact case. Which check best helps determine whether the unit will physically fit?

  1. A

    Choose the largest wattage rating available; case dimensions do not affect compatibility.

  2. B

    Check only that the PSU has the required connectors; the case determines whether it fits.

  3. C

    Check the PSU form factor and dimensions against the case, including space and mounting requirements.

  4. D

    Choose a fully modular PSU, since modularity ensures it fits smaller cases.

17
Written response
1 point

What is the name of the flat, keyed PSU power connector used by SATA drives?

18
Choose one
1 point

A modular cable from another PSU appears to fit your unit. What should you do before using it?

  1. A

    Use only a cable specified for that exact PSU model or approved by its manufacturer.

  2. B

    Use any cable that physically fits the PSU socket.

  3. C

    Use any cable with the same number of wires, regardless of the PSU model.

  4. D

    Use a cable from any PSU made by the same brand.

19
Choose one
1 point

A motherboard has a CPU-power socket, and the PSU includes both 4+4-pin EPS/CPU and 6+2-pin PCIe cables. Which cable is intended for that socket?

  1. A

    Use a 6+2-pin PCIe cable because it can substitute for an EPS/CPU cable.

  2. B

    Use the 4+4-pin EPS/CPU cable for the motherboard’s CPU-power socket.

  3. C

    Use a SATA power cable for the motherboard’s CPU-power socket.

  4. D

    Use whichever cable fits the socket, even if its label differs.

20
Written response
1 point

What is the name of the main power connector used by most desktop motherboards?