Name: 
 

Review


True/False
Indicate whether the statement is true or false.
 

 1. 
Plastic is an excellent conductor.
 

 2. 
Copper is an excellent conductor.
 

 3. 
Electrons are attracted by negative locations.
 

 4. 
Up until the 1700s, electricity was thought to be a fluid.
 

 5. 
Coulumb proved that electricity flows from negative to positive.
 

 6. 
If you put the red lead on a multimeter in the wrong port, you can blow the fuse on the multimeter.
 

 7. 
A switching power supply converts AC to DC.
 

 8. 
The flow of electrons is from a negatively charged location to a positively charged location.
 

 9. 
Plastic is an excellent conductor.
 

 10. 
Copper is a good conductor.
 

 11. 
Electrons are attracted by negative locations.
 

 12. 
Potential is the difference between the positive and negative charges in a circuit.
 

 13. 
A surge protector should be replaced every six months.
 

 14. 
A grounding strap should always be worn when working on a power supply.
 

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 15. 
Force is a measure of:
a.
volts
c.
amps
b.
ohms
d.
resistance
 

 16. 
When measuring this, attach the leads to either side of a component and measure the difference between the two.
a.
volts
c.
amps
b.
ohms
d.
resistance
 

 17. 
When measuring this, be sure to place the probe in the path of the flow.
a.
volts
c.
amps
b.
ohms
d.
resistance
 

 18. 
Matter is composed of _____.
a.
mass
c.
adams
b.
atoms
d.
orbits
 

 19. 
The nucleus of an atom is orbited by
a.
atoms
c.
Protons
b.
neutrons
d.
Electrons
 

 20. 
____ electrons can detach from their nucleus and go wandering around to other atoms.
a.
free
c.
charged
b.
bound
d.
tight
 

 21. 
When you allow electrons to flow through a wire, what forms around the outside of the wire?
a.
An electron field
c.
A magnetic field
b.
A megatron field
d.
A conductive field
 

 22. 
This physicist created the first electric generator
a.
Faraday
c.
Newton
b.
Coulomb
d.
Hawking
 

 23. 
The number of electrons in motion is called:
a.
ohms
c.
voltage
b.
amperage
d.
resistance
 

 24. 
The force “pushing” the flow of electrons is called: :
a.
ohms
c.
voltage
b.
amperage
d.
resistance
 

 25. 
When you push the power button a _______ volt signal goes to the PSU to tell it to turn on.
a.
3.3
c.
12
b.
5
d.
5.5
 

 26. 
What is VSB
a.
A signal sent by the off button to tell the power supply to turn off
c.
A circuit on the power supply that supplies 5 volts of standy voltage for turning on the computer when its turned off so the on button will work
b.
A signal sent by the reset button to tell the computer to restart
d.
A circuit on the power supply that supplies 5 volts of standby voltage for turning on the computer when it’s unplugged so that the on button will work.
 
 
nar001-1.jpg
img B
 

 27. 

In img B, which is responsible for keeping the PSU cool?
a.
A
c.
C
b.
B
d.
None of these
 

 28. 

In img B, which are the transformers?
a.
A
c.
C
b.
B
d.
None of these
 

 29. 
In img B, which is responsible for storing power in the PSU?
a.
A
c.
C
b.
B
d.
None of these
 

 30. 
Which generally draws 12 volts from the PSU?
a.
Fan
c.
CPU
b.
ISA card
d.
RAM
 

 31. 
According to the article, what is the standard PSU we use today?
a.
AT
c.
NTX
b.
BTX
d.
ATX
 

 32. 
This is a typical predictor of a failing power supply.
a.
Sweet smell
c.
Stalled PSU fan
b.
Stalled case fan
d.
Computer won’t shut down
 

 33. 
Which of the following describes a power spike?
a.
Increase in wattage significantly above the designated flow of electricity lasting  one or two nanoseconds
c.
Increase in voltage significantly above the designated flow of electricity lasting  three or more nanoseconds
b.
Increase in voltage significantly above the designated flow of electricity lasting  one or two nanoseconds
d.
Increase in wattage significantly above the designated flow of electricity lasting three or more nanoseconds
 

 34. 
This is the most common type of surge suppressor
a.
MOV
c.
GDA
b.
VOM
d.
Fuse
 

 35. 
This is used to clean up “noise” in an electrical system.
a.
Surge suppressor
c.
Line conditioner
b.
Gas discharge arrestor
d.
Hair conditioner
 

 36. 
Which is a common cause of power surges?
a.
Telephones
c.
Cars
b.
iPods
d.
Refrigerators
 

 37. 
What is a fuse designed to do?
a.
Take on extra power and store it until needed
c.
Divert the extra transient voltage to the ground
b.
Heat up and burn out so the device it is protecting doesn’t get the extra spike or surge
d.
Clean up dirty power so that the power delivered to the device is “noise” free
 

 38. 
What is a toroidal choke coil designed to do?
a.
Take on extra power and store it until needed
c.
Divert the extra transient voltage to the ground
b.
Heat up and burn out so the device it is protecting doesn’t get the extra spike or surge
d.
Clean up dirty power so that the power delivered to the device is “noise” free
 

 39. 
In a surge protector with a fuse, what happens when it works once.
a.
You can reset it
c.
You have to replace the fuse or the entire surge protector
b.
You can replace the gas chamber
d.
Nothing.
 

 40. 
This type of UPS has a short switchover time.
a.
In Line
c.
Line-Interactive
b.
Offline or Standby
d.
DRUPS
 

 41. 
This type of UPS works with a diesel motor to provide a backup generator and is super expensive.
a.
In Line
c.
Line-Interactive
b.
Offline or Standby
d.
DRUPS
 

 42. 
This type of UPS has a switching technology that is able to handle both brownouts and surges as well as loss of power. It is highly technological and more expensive, but necessary in a situation where there is fauilty power.
a.
In Line
c.
Line-Interactive
b.
Offline or Standby
d.
DUPS
 

 43. 
Electrons have a ___ charge.
a.
Negative
c.
Neutral
b.
Positive
d.
Differential
 

 44. 
Electrons move from one atom to another through
a.
push of current
c.
ohms
b.
pull of flow
d.
amps
 
 
Image 2

nar003-1.jpg
 

 45. 
What would you set your img 2 device to in order to measure the amount of difference in the flow of electricity?
a.
Com Jack
c.
AC Volts
b.
AC Amps
d.
Resistance
 

 46. 
What would you set your img 2 device to in order to measure the amount of resistance in a copper cable?
a.
Com Jack
c.
AC Volts
b.
AC Amps
d.
ohms
 

 47. 
Every atom contains one or more:
a.
nucleus
c.
proteins
b.
atoms
d.
electrons
 

 48. 
Force is a measure of:
a.
volts
c.
amps
b.
ohms
d.
resistance
 

 49. 
When measuring this, attach the leads to either side of a component and measure the difference between the two.
a.
volts
c.
amps
b.
ohms
d.
resistance
 

 50. 
When measuring this, be sure to place the probe in the path of the flow.
a.
volts
c.
amps
b.
ohms
d.
resistance
 

 51. 
When measuring this, the multimeter sends a charge down the path of the wire.
a.
volts
c.
amps
b.
ohms
d.
current
 

 52. 
This is a measurement of the resistance in a wire.
a.
volts
c.
amps
b.
ohms
d.
current
 

 53. 
This is a measurement of the volume of the electricity flow..
a.
volts
c.
amps
b.
ohms
d.
current
 

 54. 
This current cycles back and forth.
a.
AC
b.
DC
 

 55. 
This current travels in one direction only.
a.
AC
b.
DC
 

 56. 
This is a situation where electricity flows uncontrolled from a hot line to a neutral line or to the ground.
a.
ground
c.
spark
b.
short
d.
snort
 

 57. 
In a PC the ground wire is usually:
a.
black
c.
green
b.
red
d.
yellow
 

 58. 
In a PC the red wire indicates:
a.
ground
c.
neutral
b.
hot
d.
negative
 

 59. 
In a home the white wire indicates:
a.
ground
c.
neutral
b.
hot
d.
negative
 

 60. 
A(n) _________ resists the flow of electricity.
a.
resistance
c.
insulator
b.
conductor
d.
semiconductor
 

 61. 
A ___ is made of layers of semiconductor material that serves as a gate or switch for an electrical signal and can amplify the flow of electricity.
a.
insulator
c.
gage
b.
transistor
d.
semiconductor
 

 62. 
Hold an electrical charge for a period of time.
a.
diode
c.
capacitor
b.
led
d.
resistor
 

 63. 
Allows the flow of electricity to move in only one direction.
a.
diode
c.
capacitor
b.
led
d.
resistor
 
 
Image 3
nar004-1.jpg
 

 64. 
The wattage rating on image 3 is:
a.
12
c.
3.3
b.
30
d.
300
 

Multiple Response
Identify one or more choices that best complete the statement or answer the question.
 

 65. 
Which of the following is true about atoms?
 a.
Every atom contains one or more nucleii
 e.
Every electron carries a negative charge
 b.
Every atom contains one or more electrons
 f.
Every nucleus carries a positive charge
 c.
Every atom contains a nucleus
 g.
Every nucleus carries a negative charge
 d.
Every electron carries a positive charge
 h.
Nucleii orbit around the electron
 

 66. 
This current is used in computer systems.
 a.
AC
 b.
DC
 

 67. 
Which of the following would be a good conductor?
 a.
Cotton
 c.
Wood
 b.
Water
 d.
Metal
 

 68. 
Which of the following would be a good resistor?
 a.
Cotton
 c.
Wood
 b.
Water
 d.
Metal
 

 69. 
The black lead on the multimeter goes to what (choose all that apply):
 a.
Black com port
 c.
Red mA port
 b.
Red A port
 d.
Red V port
 

 70. 
The red lead on the multimeter goes to what (choose all that apply):
 a.
Black com port
 c.
Red mA port
 b.
Red A port
 d.
Red V port
 

 71. 
When testing AC with a multimeter, how do you set up the multimeter? Choose all that apply.
 a.
The black lead goes to the V A port
 d.
The dial is set to the squiggly line V
 b.
The red lead goes to the V A port
 e.
The dial is set to the straight line V
 c.
The black lead goes to the com port
 f.
The dial is just set to the V
 

 72. 
When testing DC with a multimeter, how do you set up the multimeter? Choose all that apply.
 a.
The black lead goes to the V A port
 d.
The dial is set to the squiggly line V
 b.
The red lead goes to the V A port
 e.
The dial is set to the straight line V
 c.
The black lead goes to the com port
 f.
The dial is just set to the V
 

 73. 
Which voltages are supported by a typical power supply unit (PSU)?
 a.
12
 e.
2
 b.
3.3
 f.
2.2
 c.
5
 g.
3
 d.
5.5
 h.
12.3
 

 74. 
To get watts you multiply ____ times ____
 a.
volts
 c.
current
 b.
ohms
 d.
watts
 

 75. 
Which of the following might be an indication of a failing PSU? (Choose four)
 a.
Stalled PSU fan
 e.
Failure in Windows for no reason
 b.
Burning smell
 f.
RAM dump
 c.
Overclocked RAM
 g.
Hot USB cord
 d.
Intermittent reboots
 h.
Sick cat
 

 76. 
Which of the following describes a power surge?
 a.
Increase in wattage significantly above the designated flow of electricity lasting  one or two nanoseconds
 c.
Increase in voltage significantly above the designated flow of electricity lasting  three or more nanoseconds
 b.
Increase in voltage significantly above the designated flow of electricity lasting  one or two nanoseconds
 d.
Transient volatage
 

 77. 
When a power surge happens, where does a surge suppressor divert the excess power?
 a.
To the ground
 c.
To a gas charge arrestor tube that ionizes and sends it to the ground
 b.
To the red wire
 d.
To a fuse
 

 78. 
Which of the following are the three parts of a Metal Oxide Variator surge protector?
 a.
a piece of metal oxide material
 d.
toroidal coils
 b.
grounding line
 e.
inert gas tube
 c.
two semiconductors
 f.
parallel circuit
 

 79. 
A whole house surge suppressor can actually monitor ___ and shut down sensitive devices in the house when lightning storms are in the area.
 a.
weather
 c.
air space
 b.
power
 d.
time
 

 80. 
This type of UPS has no switchover time.
 a.
In Line
 c.
Line-Interactive
 b.
Offline or Standby
 d.
DRUPS
 

 81. 
What kinds of things are UPSes usually used to protect?
 a.
Refrigerators
 e.
Telecommunication equipment
 b.
Servers
 f.
Staplers
 c.
Cars
 g.
Manufacturing processes
 d.
Computers
 h.
Electrical equipment
 

 82. 
The flow of energy requires what things? (Choose all that apply)
 a.
Electrons
 d.
Neutral charge
 b.
Differential
 e.
Negative charge
 c.
Positive charge
 f.
Conductor
 

 83. 
Which of the following is true about atoms?
 a.
Every atom contains one or more nucleii
 e.
Every electron carries a negative charge
 b.
Every atom contains one or more electrons
 f.
Every nucleus carries a positive charge
 c.
Every atom contains a nucleus
 g.
Every nucleus carries a negative charge
 d.
Every electron carries a positive charge
 h.
Nucleii orbit around the electron
 

 84. 
This current is used in computer systems.
 a.
AC
 c.
BC
 b.
DC
 d.
AD
 

 85. 
A rectifier can change which type of current?
 a.
AC
 b.
DC
 

 86. 
Which of the following would be excellent conductor?
 a.
gold
 c.
rubber
 b.
copper
 d.
plastic
 
 
Image 3
nar004-1.jpg
 

 87. 
What is true of the power supply in image 3?
 a.
It runs only on DC
 e.
The black lead is a ground
 b.
It supplies 300 watts of power
 f.
You should load this power supply no higher than 300 watts
 c.
The yellow lead converts to 12 volts
 g.
You should load this power supply no higher than 180 watts
 d.
The supply can handle a surge output of up to 328 watts
 

 88. 
Bono is having problems. His computer started just fine yesterday. Today it won’t start up at all. Which of the following are things you should check first?
 a.
Is it plugged in?
 e.
Are the fans spinning?
 b.
Is it turned on?
 f.
Has someone changed the voltage from 115 to 230?
 c.
Is there a light on the LED on the motherboard?
 g.
Is the processor correctly seated?
 d.
Does the hard drive light come on?
 

 89. 
Which of the following might be attributed to a a faulty PSU?
 a.
intermittent turning off
 e.
Power switch fails
 b.
RAM dumps
 f.
Overheating due to fan failure
 c.
Slow fans
 g.
HDD and fan failing to spin at the same time
 d.
Computer won’t turn on sometimes
 h.
Popping circuit breaker or power strip
 

 90. 
Which of the following would be useful in supressing a surge?
 a.
surge protector
 c.
APC
 b.
UPS
 d.
Line conditioner
 

 91. 
Which of the following would be useful in areas where power is dirty or dips?
 a.
surge protector
 c.
APC
 b.
UPS
 d.
Line conditioner
 

 92. 
Which of the following will keep a computer running in the event of a power outage, and then will shut the computer down safely if power doesn’t return?
 a.
surge protector
 c.
APC
 b.
UPS
 d.
Line conditioner
 

 93. 
When measuring this, be sure the power is OFF. (Choose all that apply.)
 a.
volts
 c.
amps
 b.
ohms
 d.
current
 

Yes/No
Indicate whether you agree with the statement.
 

 94. 
Coulomb’s law states that opposites attract.
 

Numeric Response
 

 95. 
A computer power supply converts the house voltage from ____ to 3.3, 5, or 12 volts for computer use.

 

 96. 
The US uses __ voltage     

 

 97. 
The UK uses __ voltage     

 

Completion
Complete each statement.
 
 
nar002-1.jpg

Img A
 

 98. 
Img A is an
 

 

 99. 
A in Img A is a(n)
 

 

 100. 
B in Img A is a(n)
 

 

 101. 
The charge of B in Img A is _______
 

 

 102. 
The charge of A in Img A is _______
 

 

 103. 
Electricity needs a ____ in order to move.
 

 

 104. 
Transient voltage is also known as a ____ (one word)
 

 

 105. 
This provides power in the event of a power failure.
 

 

 106. 

This is the most basic kind of UPS. It is also known as an offline UPS.
 

 

 107. 
This type of UPS has the device basically drawing power directly from the battery but isn’t the most expensive one.
 

 

 108. 
This type of UPS is huge and is coupled with a diesel generator. It is pricey, but awesome. What is the acronym for this UPS?
 

 

 109. 
__________ causes electrons to move from one atom to another.
 

 
 
nar005-1.jpg
 

 110. 
Img 1 is a
 

 

 111. 
A in Img 1 is a(n)
 

 

 112. 
B in Img 1 is a(n)
 

 

 113. 
The charge of B in Img 1 is _______
 

 

 114. 
The charge of A in Img 1 is _______
 

 
 
Image 2

nar003-1.jpg
 

 115. 
The item in image 2 is a:     
 

 

 116. 
Conductors have ____ electrons which can move around.
 

 

 117. 
A _____ controls electricity by slowing its natural flow.
 

 

 118. 
There is a direct/indirect relationship between voltage and current.
 

 

 119. 
This is the measurement of the total amount of power needed to operate an electrical device
 

 

 120. 
This is the state where there is no difference in potential between the circuit point and the earth.
 

 
 
Image 3
nar004-1.jpg
 

 121. 
This power supply would work on a(n) _______ motherboard.
 

 

 122. 
A dip in power is also known as a _______.
 

 

 123. 
A _______ means a large amount of power has blasted through the system.
 

 

Matching
 
 
Match the wattage to the computer component
a.
AGP Card
e.
RAM
b.
PCI Card
f.
IDE Hard Disk
c.
Network Card
g.
Motherboard (bare)
d.
CD Drive
h.
600 MHz Athlon
 

 124. 

 5W
 

 125. 

 20-30W
 

 126. 

 4W
 

 127. 

 20-30W
 

 128. 

 45W
 

 129. 

 10-25W
 

 130. 

 5 to 11 or 5 to 15W depending on RPM
 

 131. 

 10W per 128MB
 



 
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