Chapter 8 Review: Power Supplies

Question 1

What ATX12V feature was introduced as part of the EPS12V standard?

Answer 1

Voltage rails

Question 2

The older ATX power connector used 20 pins, a newer one uses:

Answer 2

24

Question 3

What will likely happen if the wattage capabilities of a PSU are exceeded by trying to run too many devices?

Answer 3

The system will not boot or turn on at all

Question 4

A PSU is a ___ which refers to a spare part typically carried to replace failed components in the field

Answer 4

FRU (Field replaceable unit)

Question 5

What fire extinguisher is used for computer fires?

Answer 5

Class C

Question 6

Which of the following is NOT a PSU form factor?

a. ATX12V
b. LPX12V
c. TFX12V
d. CFX12V
e. SFX12V

Answer 6

b. LPX12V

Question 7

What voltage does an ATX12V p4 connector provide for motherboards?

Answer 7

12V

Question 8

The older Hard Drive power connector is called:

Answer 8

Molex

Question 9

Resistance is known as?

Answer 9

ohms

Question 10

Pressure is known as?

Answer 10

voltages

Question 11

Volume flowing is known as?

Answer 11

Amperes

Question 12

Work is known as?

Answer 12

Wattage

Question 13

A computer may overheat if what are left off expansion slots?

Answer 13

Slot covers

Question 14

This ATX form factor power supply attaches to the motherboard with a ______ and supplies 5 V to the motherboard at all times

Answer 14

P1 power connector

Question 15

The electric company provides ___ power while computers use ___ power

Answer 15

AC, DC

Question 16

This type of PSU has a switch on the back that allows you to choose what voltage you want to use

Answer 16

Fixed-input PSU

Question 17

For your computer to run smoothly, the ____ for your PSU should be greater than the minimum required by all devices in your PC

Answer 17

wattage

Question 18

How many pins does a SATA power connector have?

Answer 18

15

Question 19

The ability to split voltage supplies into separate ____ ensures that no device will hog all available power

Answer 19

Rails

Question 20

This 4 pin connector is used to power floppy drives

Answer 20

Mini connector

Question 21

This provides basic cooling for the PC

Answer 21

Power supply fan

Question 22

What is the maximum percentage a multi-meter reading can vary?

Answer 22

10%