Question 1

Which of the following are signs of a dead system with no signs of life when turned on? (Choose all that apply.)

Accepted Answer

A)   Defects in AC power to the system
B)   Power supply failure or misconfiguration
C)   Temporary short-circuits in internal or external components
D)   Power supply or other component failure
E)   All answers provided are correct E

Question 2

To determine if the fan in a power supply has failed, you should do which of the following?

Accepted Answer

A)   Listen to the unit.
B)   Check the blades of the fan while the power is on.
C)   Both a and b.
D)   None of the answers provided are correct. C

Question 3

Matching
-Active heat sink

Accepted Answer

A)   The kind of electrical current used to run homes and businesses
B)   The type of electrical current supplied by batteries or by a PC's power supply
C)   A device that supplies and converts electrical power for system use
D)   A device that absorbs high-voltage events to protect electrical devices
E)   A device used for backup when electrical strikes or brownouts occurF)  Capable of providing cooling without power or mechanical partsG)  Capable of providing cooling with power through the use of fans H)  A device designed to measure electrical sources in voltage, current, and resistanceI)  A substance applied to provide the best possible heat transfer between a component and the heat sinkJ)  Cooling technique used by most power supplies G

Question 4

What is an active heat sink?

Accepted Answer

A)   A heat sink with metal piping
B)   A heat sink with a power supply
C)   A heat sink with a processor
D)   A heat sink with a fan

Question 5

Aluminum is the only material used for all heatsinks in computers today.

Accepted Answer

A) True 
 B)False

Question 6

All power supplies use fans to dissipate the heat created by the operation of the power supply.

Accepted Answer

A) True 
 B)False

Question 7

Matching
-DC

Accepted Answer

A)   The kind of electrical current used to run homes and businesses
B)   The type of electrical current supplied by batteries or by a PC's power supply
C)   A device that supplies and converts electrical power for system use
D)   A device that absorbs high-voltage events to protect electrical devices
E)   A device used for backup when electrical strikes or brownouts occurF)  Capable of providing cooling without power or mechanical partsG)  Capable of providing cooling with power through the use of fans H)  A device designed to measure electrical sources in voltage, current, and resistanceI)  A substance applied to provide the best possible heat transfer between a component and the heat sinkJ)  Cooling technique used by most power supplies

Question 8

Overheated power supplies can cause system failure and possible component damage due to which of the following causes.

Accepted Answer

A)   Overloading
B)   Fan failure
C)   Dirt and dust
D)   All the above

Question 9

What is another name for a battery backup unit?

Accepted Answer

A)   UPS (Uninterruptible Power Supply) 
B)   Overvoltage
C)   Spike
D)   Surge

Question 10

What is the other name for the northbridge?

Accepted Answer

A)   Memory controller hub chip
B)   Surge suppressor
C)   I/O controller hub chip
D)   PCI card

Question 11

Matching
-Negative pressure
A) The kind of electrical current used to run homes and businesses
B) The type of electrical current supplied by batteries or by a PC's power supply
C) A device that supplies and converts electrical power for system use
D) A device that absorbs high-voltage events to protect electrical devices
E) A device used for backup when electrical strikes or brownouts occur
F) Capable of providing cooling without power or mechanical parts
G) Capable of providing cooling with power through the use of fans 
H) A device designed to measure electrical sources in voltage, current, and resistance
I) A substance applied to provide the best possible heat transfer between a component and the heat sink
J) Cooling technique used by most power supplies

Accepted Answer

The answer of Matching
-Negative pressure
A) The kind of electrical current...

Question 12

Matching
-Thermal compound

Accepted Answer

A)   The kind of electrical current used to run homes and businesses
B)   The type of electrical current supplied by batteries or by a PC's power supply
C)   A device that supplies and converts electrical power for system use
D)   A device that absorbs high-voltage events to protect electrical devices
E)   A device used for backup when electrical strikes or brownouts occurF)  Capable of providing cooling without power or mechanical partsG)  Capable of providing cooling with power through the use of fans H)  A device designed to measure electrical sources in voltage, current, and resistanceI)  A substance applied to provide the best possible heat transfer between a component and the heat sinkJ)  Cooling technique used by most power supplies

Question 13

What is used as a diagnostic tool to test the functionality of a defective device such as a power supply but can also be used to test coaxial, serial, and parallel cables, as well as fuses, resistors, and batteries?

Accepted Answer

A)   Fuse box.
B)   Voltage meter.
C)   Multimeter.
D)   None of the answers provided are correct.

Question 14

A(n) _________ is caused by connecting devices that draw more power (in watts) than the power supply is designed to handle.

Accepted Answer

A)   Overloaded power supply
B)   Fan failure
C)   Inadequate airflow
D)   None of the above

Question 15

Low-cost surge suppressors are often just as useful as their more expensive counterparts.

Accepted Answer

A) True 
 B)False

Question 16

Typically, recent power supplies in tower-case (upright case) machines use ______ power supplies reflecting on the greater number of drives and cards that can be installed in the computer.

Accepted Answer

A)   300 watt
B)   400 watt or larger
C)   500 watt or smaller
D)   500 watt or larger

Question 17

In most recent mid-range to high-end video cards, what is used to keep the GPU and video memory cool?

Accepted Answer

A)   Northbridge
B)   Southbridge
C)   Fan shroud
D)   Case fans

Question 18

What is the other name for the southbridge?

Accepted Answer

A)   Surge suppressor
B)   Memory controller hub chip
C)   I/O controller hub chip
D)   NIC card

Question 19

It is not vital to have a properly functioning power supply for a computer to work correctly.

Accepted Answer

A) True 
 B)False

Question 20

What is the name of the finned metal device that radiates heat away from the processor?

Accepted Answer

A)   Surge protector
B)   Heat sink
C)   Surge suppressor
D)   Multimeter

Exam 4: Power Supplies and System Cooling

Which of the following are signs of a dead system with no signs of life when turned on? (Choose all that apply.)

To determine if the fan in a power supply has failed, you should do which of the following?

Matching -Active heat sink

What is an active heat sink?

Aluminum is the only material used for all heatsinks in computers today.

All power supplies use fans to dissipate the heat created by the operation of the power supply.

Matching -DC

Overheated power supplies can cause system failure and possible component damage due to which of the following causes.

What is another name for a battery backup unit?

What is the other name for the northbridge?

Matching -Thermal compound

What is used as a diagnostic tool to test the functionality of a defective device such as a power supply but can also be used to test coaxial, serial, and parallel cables, as well as fuses, resistors, and batteries?

A(n) _________ is caused by connecting devices that draw more power (in watts) than the power supply is designed to handle.

Low-cost surge suppressors are often just as useful as their more expensive counterparts.

Typically, recent power supplies in tower-case (upright case) machines use ______ power supplies reflecting on the greater number of drives and cards that can be installed in the computer.

In most recent mid-range to high-end video cards, what is used to keep the GPU and video memory cool?

What is the other name for the southbridge?

It is not vital to have a properly functioning power supply for a computer to work correctly.

What is the name of the finned metal device that radiates heat away from the processor?