true
a colored stripe on one side of a cable determines pin 1. t/f
false
ESDT is noise caused by electrical devices. t/f
true
a technician can cause data loss on the hard drive if the hard drive is mishandled. t/f
false
a soldering iron is one of the most common tools used by technicians. t/f
true
EMI is noise caused by electrical devices. t/f
false
preventative maintenance is done when a computer is not working. t/f
false
a magnetic screwdriver is a good tool to have for dropped parts on a computer motherboard. t/f
false
? is the symbol for ground. t/f
true
the effects of ESD are cumulative. t/f
false
keep humidity below 1 percent to reduce the threat of ESD. t/f
false
the power going into the power supply is DC power. t/f
false
the output from the power supply to the computer devices is AC power. t/f
false
DC stands for digitally corrected current. t/f
true
the two most common types of computer power connectors are molex and berg. t/f
true
an overvoltage condition is when the voltage from the wall is over the rated amount. t/f
true
power surges can come through the telephone line. t/f
false
an undervoltage condition is when the voltage from the wall is over the rated amount. t/f
false
two of the most typical power supply output voltages are +5 and +10 volts. t/f
true
a continuity check is used to see whether the wires in a cable are good. t/f
true
when replacing a power supply, choose a power supply that is greater or equal in power rating. t/f
false
a meter reading for a good cable wire shows 200 ohms. t/f
true
a metering reading for a good fuse shows 0 ohms. t/f
false
You are responding to an email from an irate customer. On your reply, you send a copy to your boss so that he is informed of the situation. This is an appropriate tactic to take for proper written communication
true
You are responding to an email from an irate customer. The reply is as follows: ?I am sorry the replaced part did not solve your problem. I will be happy to take a look at the computer again tomorrow. I can be there at 2 P.M. if that is convenient with yo
false
You are responding to an email from an irate customer. The reply is as follows: ?I am sorry the computer locked up again. I will be happy to take a look at the computer again tomorrow. It is probably your CPU or your RAM. Of course, it could always be the
B) Makes you wonder about the experience level of the technician
) Your computer displays a disk error each time you attempt to access a CD. You take the computer to the PC shop and explain that you think the problem is a bad optical drive. ?I?m going to strip your computer down to the bare metal,? the technician says,
C) Correctly install the standoffs to prevent grounding problems or worse.
A technician disassembles a desktop computer. After completely reassembling the unit, the technician observes that the motherboard standoffs were not installed. Read each statement below and select the one that best explains how the technician should hand
A) Metal line on the motherboard or adapter
In the computer industry, a trace is a
A) Metal line on the motherboard or adapter
B) Computer chip
C) Power booster TRansient Alternating Current Emulator
D) Small amount of something, as in a trace of data
D) ElectroStatic Discharge
ESD stands for
A) Enhanced Silicon Differential
B) Electric System Dynamics
C) Electronic Shock Discharge
D) ElectroStatic Discharge
A) 3000 volts
At what point can a static discharge be felt by the average person?
A) 3000 volts
B) 6000 volts
C) 12,000 volts
D) 24,000 volts
C. 30
An electronic component can be damaged with as little as volts of static electricity.
A) 2
B) 10
C) 30
D) 40
B) Is not recoverable
If an ESD event occurs, the damage
A) Is reduced by wearing an antistatic wrist strap
B) Is not recoverable
C) Is reduced by turning off the computer
D) Is harmless
D) Low humidity
What atmospheric condition can increase the potential for static electricity?
A) High temperatures
B) Atmospheric conditions have little impact on static electricity
C) Low temperatures
D) Low humidity
B) CRT monitor
ESD wrist straps should not be worn when working inside a .
A) Floppy drive
B) CRT monitor
C) Hard drive
D) Power strip
A) Keep in contact with the metal case of the power supply.
How can you reduce the chance of static electricity harming your computer when an antistatic strap is not available?
A) Keep in contact with the metal case of the power supply.
B) Improvise by holding the metal found on your clothing such as a belt buckle
D) Risk serious danger to the system because current runs through the motherboard, even when the computer is turned off
Plug one end of the power cable into the wall and the other end into the computer while performing maintenance on a newer computer to
A) Reduce the chance of electricity hurting the system
B) Make the computer safe to work on
C) Provide extra power for a
C. EMI
A noise produced by electrical device is
A) ESD
B) Standoffs
C) EMI
D) EDD
B) ElectroMagnetic Interference
EMI stands for
A) ElectroMagnetic Input
B) ElectroMagnetic Interference
C) ElectroMagnetic Impulse
D) Electronic Measurement Indicator
D) ?Is there a fan in your office??
Margaret complains that her office computer locks up during the hottest month of the summer each summer for the past several years. The help desk technician suspects that the problem is related to RFI and asks
A) ?Do you use cologne near the computer??
B)
A) Radio Frequency Interference
RFI stands for
A) Radio Frequency Interference
B) Read Format Indicator
C) Real-time Frequency Impact
D) Resonating From Input
D) All these answers are true.
From the following choices, choose the answer that best represents a proper disassembly tip:
A) Place removed adapters in an ESD bag.
B) Make note of motherboard jumpers.
C) Avoid stacking adapters one on top of another.
D) All these answers are true.
E) Power options control panel�Hibernate tab
Where would you allow hibernation for a Windows XP laptop?
A) Through the system BIOS
B) Display control panel�Screen Saver tab
C) Display control panel�Power tab
D) Power options control panel�Power schemes tab
E) Power options control panel�Hibernate ta
C) The laptop has blocked air vents.
A laptop connected to AC power shuts down after prolonged periods. What is the most logical reason for this problem considering that it is not a laptop hardware component?
A) The laptop does not have the latest Windows service pack installed.
B) The lapto
C) The dirt and grease from your fingers can collect on the contacts.
You should avoid touching the adapter contacts because
A) The contacts are brittle and will easily break apart.
B) The contacts store enough electrical charge to produce a health risk if you are poorly grounded.
C) The dirt and grease from your fingers ca
A) Some screwdrivers and nut drivers
While at work, Max, a computer user, calls the computer repair center and requests that additional RAM be added to his new office PC. What tools would you consider most important for the technician to carry?
A) Some screwdrivers and nut drivers
B) A multi
B) Small needle nose pliers
The computer service desk received a work order to repair a keyboard. The computer user complained that he could not reconnect the keyboard into its socket on the motherboard. When the technician arrives, he examines the DIN keyboard connector and conclud
C) Induction of a current
What unique danger does a magnetic screwdriver present while removing screws that hold an adapter card and motherboard, or picking up a dropped screw?
A) Scratching the surface of the adapter or board
B) Stripping the head of a screw
C) Induction of a cur
C) Metric nut driver, pliers, AC circuit tester, and screw-starter tool
Some tools a technician uses are nice to have, whereas others are a necessity. The nice-to-have tools include
A) Medium flat-tipped screwdriver, small flat-tipped tweaker screwdriver, and #1 Phillips screwdriver
B) #2 Phillips screwdriver, � inch nut driv
D) All these answers are important for a technician to have.
For each service call the technician should be equipped with
A) Pen, pencil, and notepad
B) Basic tools
C) Good attitude
D) All these answers are important for a technician to have.
B) Can be inserted only one way
While working with a ribbon cable and connector, you discover that the connector is keyed. This means that the connector
A) Can be removed only with a key
B) Can be inserted only one way
C) Has been stamped with a special identity number/code
D) Is ready
A) The line is pin 1.
A technician is looking at the ribbon cable that connects the hard drive to the motherboard and notices a thin red line running down the edge of the ribbon cable. The colored line tells the technician
A) The line is pin 1.
B) The ribbon cable is irregular
C. Pin 1
Pin 1 on the ribbon cable connects to on the adapter or motherboard.
A) Pin 20
B) Pin 10
C) Pin 1
D) It depends the adapter type and motherboard model.
A) Number 2 stenciled on the board
On the motherboard or the adapter card, the location of pin 1 might not be easily recognizable. If a number 1 is not stenciled on the board at the connector site, look for a
A) Number 2 stenciled on the board
B) Colored stamp on the board
C) Pin with a lo
B) Square shaped solder joint on the back of the board at the connector site
On the motherboard the location of pin 1 might not easily be recognized. If the pin number is not stenciled on the board at the connector site, look for a
A) Red stamp on the board
B) Square shaped solder joint on the back of the board at the connector si
D) Tell Harry to look at the orientation of the colored stripe on the last remaining attached cable and plug the other cables in the same direction.
Happy-go-lucky Harry decides to open his computer case to see what he could see. After a few moments of pondering, he notices five ribbon-like cables on the motherboard. He pulls at one and disconnects it from the motherboard. Delighted at his success at
C) Turn the ribbon cable around so that the arrow on the ribbon cable is on the opposite end of the pin marked with a 40 and connect it to the motherboard.
A home computer user studies the computer and cries in frustration to you, ?How can I connect the ribbon cable if the connector on the motherboard does not have a pin 1.? You look at the connector site on the motherboard and confirm the observation. You s
E) Patty forgot to plug the power cord into the computer
Take-it-apart Patty had some experience in troubleshooting her PC. One day she decided to take the next big step by completely disassembling her computer. When she reassembled it and turned the computer on, she heard nothing, smelled nothing, and saw noth
A) Hot; neutral
AC wiring has both a and a _____.
A) Hot; neutral
B) Ground; hot
C) Ground; return
D) On; off
B) A lint-free cloth
To which of the following would you apply monitor cleaning solution?
A) A monitor
B) A lint-free cloth
C) A sponge
D) A lint-free urethane swab
A) Water and lint-free cloth
Which of the following is best to clean a laptop screen?
A) Water and lint-free cloth
B) Monitor cleaning solution and lint -free urethane swabs
C) Alcohol-free cleaning solution and a sponge
D) Ammonia and lint-free cloth
C) Automatically lock the heads in place away from the area where data is stored when the computer is turned off
Hard disk drives have self-parking heads that
A) Use software to make the heads pull away from the data area and park in a safe zone on the platter
B) Make the hard disk drive safe from any jolts and jarring vibrations
C) Automatically lock the heads in p
A) Vacuuming the computer, cleaning CD/DVD laser, and using urethane swabs to clean between the keys on a keyboard
Three common tasks performed during preventive maintenance include
A) Vacuuming the computer, cleaning CD/DVD laser, and using urethane swabs to clean between the keys on a keyboard
B) Cleaning the CPU?s gold pins, lubricating disassembled drives, and rep
A) MSDS
Which of the following describe how to dispose of print roller cleaner?
A) MSDS
B) BIOS
C) EMI
D) SETUP
C) Preventive maintenance
is/are measures taken to prolong the life of the computer.
A) ESD
B) EMI
C) Preventive maintenance
D) Utilities
D) All of these items would most likely be found in the kit
Which of the following items listed are most likely to be found in a technician?s preventive maintenance kit?
A) Laser printer vacuum
B) Compressed air
C) Denatured alcohol
D) All of these items would most likely be found in the kit
B) I should have vacuumed first.
Douglas was a proud home computer user. He had his computer for 3 years and never had to open the case once. Douglas bought a large can of compressed air at the computer store because he heard compressed air was the appropriate tool to use when cleaning t
A) Some people may be sensitive to the dust blown into the air.
Why is it best not to start cleaning a computer by using compressed air?
A) Some people may be sensitive to the dust blown into the air.
B) Pressure may damage the fragile electronic equipment.
C) Heavy dirt can?t be moved by the compressed air.
D) The tu
C) Unplug the computer and use an antistatic wrist strap.
Which procedure would you follow to prevent ESD?
A) Use warm water with soap and a general purpose cloth.
B) Move the computer to a different wall outlet and to a different location.
C) Unplug the computer and use an antistatic wrist strap.
D) Close the s
A) Reinserting the drives in their original position in the drive bays
After many parts have been removed from the computer, it is possible to become confused at certain points in the reassembly process. Which task has been identified as a likely point of confusion during reassembly?
A) Reinserting the drives in their origin
B) Draw diagrams as you disassemble the computer.
One practical method to lower frustration that arises when reassembling the computer is
A) Know where the traces on the motherboard lead.
B) Draw diagrams as you disassemble the computer.
C) Meditate before disassembling and reassembling.
D) Always have t
D) Capacitors
It can be dangerous for a technician to work on an unplugged monitor due to the charge held by the
A) Fuses
B) Resistance
C) Screen
D) Capacitors
D) Farads
Capacitance is measured in
A) Amps
B) Watts
C) Ohms
D) Farads
C) +3.3 volts
Which of the following could be a valid voltage coming from the power supply to one of the computer?s components?
A) +9 volts
B) +6 volts
C) +3.3 volts
D) 112 volts
A) Voltage
) _____ is a measure of the pressure pushing electrons through a circuit.
A) Voltage
B) Amperage
C) Resistance
D) Capacitance
B) DC
Polarity is important when measuring .
A) AC
B) DC
C) Resistance
D) Capacitance
A) Heavier
If two power supplies are of equal wattage, the rule of thumb says the better one will be _____.
A) Heavier
B) Bigger
C) Made in China
D) Smaller
A) Amps
Current is measured in .
A) Amps
B) Watts
C) Ohms
D) Farads
B) Watts
Power is measured in .
A) Amps
B) Watts
C) Ohms
D) Volts
C) Ohms
Resistance is measured in .
A) Amps
B) Watts
C) Ohms
D) Farads
C) Volts X amps
Power is calculated as .
A) Amps X farads
B) Amps X ohms
C) Volts X amps
D) Volts X ohms
B) Amps; voltage
A power supply is rated in for each level.
A) Volts; amperage
B) Amps; voltage
C) Farads; capacitance
D) Ohms; resistance
B) The highest
What meter setting should be used initially when measuring an unknown voltage?
A) Infinite
B) The highest
C) Amps
D) The lowest
D) Continuity
A check is used to see whether the wires in a cable are good.
A) Voltage
B) Amperage
C) Opposition
D) Continuity
C) All pins connect one to one
From the following, select the item that makes this statement FALSE. When performing a continuity check on a cable _______
A) Not all pins are wired to the matching pin on the other end
B) Not all pins have to be connected to a pin on the other end
C) All
A) 0 ohms
A meter reading for a good cable wire shows .
A) 0 ohms
B) 0 volts
C) Infinite ohms
D) Infinite volts
D) Its wiring list
A pin-out for a cable refers to ____.
A) Its voltage requirements
B) The type of output
C) The type of equipment to which it connects
D) Its wiring list
A) Amps
A fuse is rated in .
A) Amps
B) Volts
C) Ohms
D) Watts
B) A paper clip
Which of the following items could be useful in performing a continuity check on a cable that has small pin connections?
A) A dime
B) A paper clip
C) Wire cutters
D) Chewing gum
A) 0 ohms
A meter reading for a good fuse shows ____.
A) 0 ohms
B) 0 farads
C) Infinite farads
D) Infinite volts
A) Same or lower
You should replace a fuse with one that has a ____ amperage rating.
A) Same or lower
B) Strictly higher
C) same or higher
D) strictly lower
C) Switching
A computer uses a/an ____ power supply.
A) Alternating
B) Efficient
C) Switching
D) Linear
D) Providing a load
) Making sure the power supply is connected to the motherboard and other devices before powering up is called _____.
A) Dangerous
B) Discharging
C) Power interrupt enhancement
D) Providing a load
A) AC
The power going into the power supply is power.
A) AC
B) DC
C) Overvoltage
D) Undervoltage
B) The motherboard and operating system to control the power supply
With an ATX power supply, there is a connection from the front panel switch to the motherboard. This allows _____.
A) Voltage regulation
B) The motherboard and operating system to control the power supply
C) The operating system to establish the proper re
A) Power good signal
A is required before software from the BIOS is executed.
A) Power good signal
B) Password
C) Surge protector good signal
D) Power down signal
D) Provide current to the monitor.
Which of the following is NOT a purpose for the power supply?
A) Provide cooling for the computer.
B) Convert AC to DC.
C) Provide power to the computer.
D) Provide current to the monitor.
B) Molex; Berg
The two types of power connectors are _____and _____.
A) French; Standard
B) Molex; Berg
C) Keyed; Return
D) Pyrex; Sentinel
B) Advanced Configuration and Power Interface
ACPI stands for .
A) Automatic Continuous Power Integration
B) Advanced Configuration and Power Interface
C) Adjustable Computer Power Implementation
D) Auto Conditioned Power Instance
C) Wake on LAN
Thanks to ACPI, a network administrator can remotely power on a computer with a _____ command.
A) Soft-off
B) BIOS Flash
C) Wake on LAN
D) Hot Key Power On
A) Faulty power supply
You turn your computer on and nothing happens. The computer light is off. You check the fan and it is running. Which of the following is a likely source of the problem?
A) Faulty power supply
B) Faulty hard drive
C) Voltage problem with the mother board
D
B) The outlet is supplying power.
You turn your computer on and nothing happens. The computer light is off. You check the fan and it is running. Which of the following can you assume?
A) The on/off button is malfunctioning.
B) The outlet is supplying power.
C) The motherboard is bad.
D) T
C) The CD drive is inoperable.
Which of the following is NOT typically a symptom of a power supply problem?
A) The computer light is off.
B) The power supply fan is inoperable when the computer is on.
C) The CD drive is inoperable.
D) When the computer powers up, it does not beep.
A) AC; DC
The power supply takes and converts it into .
A) AC; DC
B) DC; AC
C) Electrons; bits
D) Low voltage; high voltage
B) An overvoltage situation
) John measures the voltage coming from the wall outlet. The voltmeter reads 135 VAC. This is _____.
A) An undervoltage situation
B) An overvoltage situation
C) Exactly what he should expect
D) A serious problem because it should be DC
C) 110 to 130 VAC
The proper voltage from a wall outlet is .
A) +5 to +12 volts DC
B) 90 to 100 volts AC
C) 110 to 130 VAC
D) More than 200 volts AC
D) Surge protector
For which of the following would you consider the TVS rating?
A) Optical disk drive
B) Scanner with a USB connection
C) Monitor screen viewable area
D) Surge protector
A. A
You are considering two surge protectors. A has a 330 TVS rating and B has a 400 TVS rating. All else equal, which is preferable?
A) A
B) B
C) Does not matter
D) Trick question; surge protectors do not have a TVS rating.
A) Surge protector
Which of the following devices does NOT protect in an undervoltage condition?
Which of the following devices does NOT protect in an undervoltage condition?
A) Surge protector
B) UPS
C) UPS with power conditioning
D) Line conditioner
C) A sine wave
AC power from an outlet can be described as .
A) An adaptive current
B) A continuous direct supply of current
C) A sine wave
D) A square wave
A) Switching time
An important factor when considering an SPS is .
A) Switching time
B) Modem speed
C) Network connection speed
D) The cost of electricity
D) SPS
Which of the following devices provides battery power to the computer only when there is a blackout?
A) Surge protector
B) UPS
C) UPS with power conditioning
D) SPS
C) A Type C fire extinguisher
Use to put out a computer fire.
A) Water
B) A fire resistant blanket
C) A Type C fire extinguisher
D) A Type A fire extinguisher
D) Improper technical support technique
Consider the following email to faculty from the computer support person at a school: ?Dear faculty, Welcome Back! I need to know what software you need changed for the coming semester. If you could let me know the software application, show me the proof
A) Good written communication skills
Consider the following note left by a technician after a service call: ?Ms. Jones, I am happy to report that I was able to repair your computer. It had a virus. The virus has been removed. I suggest you ask your company to purchase an antivirus applicatio
D) Unprofessionalism
Consider the following email to a fellow technician: ?Hey Joe! I really need some help here. I have a hard drive that will not keep a second partition. I KNOW THAT YOU SON OF A GUN REALLY KNOW THIS STUFF and i want your xpert mind. :-) Would you help me o
B) The laptop operates only from AC power.
What is the best indication that a laptop battery needs to be replaced?
A) The laptop has to be constantly restarted.
B) The laptop operates only from AC power.
C) The laptop constantly reboots on its own.
D) The laptop operates only from DC power.
C) Change the voltage selector on the laptop.
A teacher from the school where you are a technician has been invited to Vienna, Austria, and wants to take her laptop with her. They have an 802.11n wireless network. What would you suggest to her before she leaves?
A) Buy a new wireless adapter.
B) Leav
D) Connect the AC adapter and power on the laptop
Nelly, the-constant-nag computer user, complains that her laptop is broken. She states that she charged the laptop battery last night, but when she powered on the laptop at the first customer office, the laptop would not power on. What is the first step i
A) Replace the power supply.
Stella, the technician, suspects the fan on a power supply is bad because the computer keeps turning off, and she can see that the fan does not move. Stella should
A) Replace the power supply.
B) Replace the power supply fan.
C) Install an auxiliary case
E) Disable USB ports that are not being used.
Which item will NOT help with laptop battery conservation?
A) Reduce screen brightness.
B) Use a battery from the laptop manufacturer.
C) Refrain from using the optical drive.
D) Turn off the wireless adapter.
E) Disable USB ports that are not being used.
D) Nothing. The newer ATX power supply is compatible with both 20 - and 24-pin connectors
) Jessie, the PC technician, replaced a power supply in an older ATC computer. Jessie notices that the ATX motherboard connector has more pins than the main power connector coming from the power supply. What should Jessie do?
A) Obtain a compatible power
D) Power supply
In Jacksonville, a horrific thunder storm rolled through the area. Afterward, Karl walked into his home office and smelled a strong burning odor. Which component is most likely causing the odor?
A) CPU fan
B) CPU
C) Motherboard
D) Power supply
A, D
Joe, the junior technician, is helping with a department move to a different area of the building. Which two of the following are true regarding this move?
A. When connecting surge strips, Joes should ensure they are not installed in a walk path of the of
B, C
While attempting to remove an adapter, the screw that secures the card to the case drops between two other adapters on the motherboard. Which of the following should you use to safely remove the screw?
A) Magnetic screwdriver
B) Needle nose pliers
C) Hemo
A, D
To prevent ESD, which TWO of the following are the most effective?
A) Use an antistatic wrist strap.
B) Use antistatic spray on a lint free cloth and apply to the monitor.
C) Use antistatic spray or diluted fabric softener on carpet.
D) Put the computer o
A, B
You can identify pin 1 on a ribbon cable by looking for
A) An arrow etched into the cable connector
B) A colored stripe running down the edge of the cable
C) A numbered sticker on the cable
D) A notch on the last cable
E) The number 1 stenciled on one wir
A, E
Which type of fire extinguisher could be used for a paper fire?
A) Type A
B) Type B
C) Type C
D) Type D
E) Type A-B-C
F) Type B-C-D
ESD
____ is static electricity that enters an electronic component causing damage to it.
3000
___ volts need to be present before an average person can feel static electricity.
30
3) As little as _____ volts of static electricity can damage an electronic component.
memory modules
4) _____ are components that are most susceptible to ESD strikes.
antistatic wrist strap
5) A/An _____ connects a technician to the computer and places both the technician and the computer at the same potential.
CRT monitor
6) An antistatic wrist strap should not be used when working inside a/an _____.
EMI
7) Random noise caused by a pencil sharpener that interferes with a computer speaker is an example of _____. Type the acronym.
ESD
8) Use proper grounding procedures to prevent _____ damage.
pliers
9) _______ are good for straightening bent pins.
1, 2
10) Cable pin numbers _____ and _____ are always found toward the ribbon cable stripe.
preventive maintenance
11) Measures taken to prolong the life of computer components are collectively known as _____.
MSDS
12) The _____ contains information about how to dispose of a particular chemical solvent.
AC
13) The type of power provided through a wall outlet is known by the acronym ________.
DC
14) The type of power a computer uses is known by the acronym ________.
volts
15) The measurement used to describe what the power supply outputs to the various computer components is ________, which is also the term that describes how much pressure pushes electrons through a circuit.
120
16) A wall outlet is typically _______ AC volts.
capacitor
17) A/An _______ is an electronic component found in power supplies and CRT monitors that stores a charge even after power is removed.
farads
18) Capacitance is measured in _______.
current
19) Amps are a measurement of _______.
watts
20) Power is measured in _____.
resistance
21) Ohms are a measure of _____.
infinite
22) When measuring a broken wire, the meter shows _____ resistance.
switching
23) There are two basic types of power supplies. PCs use a/an _____ type power supply.
load
24) Do not power on a power supply without a/an _______ because the power supply can be damaged.
24
25) The ATX motherboard now has a _____-pin power connector as its main source of power.
power good
26) The _______ signal is sent to the motherboard when the power supply's voltages are at their proper levels.
converter
27) If a Molex power connector is the only connector available and a SATA power connector is needed, use a/an _______.
ac, dc
28) A power supply converts _____ to ______.
same
29) When installing an auxiliary fan, the airflow must be in the _______ [ same | opposite ] direction as/from the airflow generated by the power supply.
checked
30) U.S. flight regulations state that spare lithium batteries are not allowed in _______ [ checked | carry on ] luggage.
power options
31) The Windows XP _______ Control Panel is used to select a power scheme.
power options
32) The Windows 7 _______ Control Panel link is used to select a power scheme.
auto switching
33) A laptop or netbook with a/an _______ power supply can be used in Europe and the U.S. without any switch being changed.
circuit tester
34) A/An _____ is used to test wall outlet connections.
overvoltage
35) A/An _______ condition is when the AC electrical force exceeds the rated amount.
surge, spike
36) Two overvoltage conditions are a/an _______ and a/an _______.
sag, brownout
37) Two undervoltage conditions are a/an _______ and a/an _______.
blackout
38) A total loss of power is also known as a/an _______.
surge protector
39) A/An _______ protects only against the overvoltage condition.
MOV
40) A common component in a surge protector is the _____. (Give the acronym.)
power conditioner
41) The _______ guards against overvoltages and undervoltages, but not against a blackout.
UPS
42) The _______ provides power from a battery to the computer during a power outage and during normal power conditions. (Give the acronym.)
surge protector
43) _______ provides protection for modems.
C, or ABC
44) To extinguish a computer fire, use a Class _____ fire extinguisher.
C
45) An electrical fire is classified as a Class _____.
mad
46) Never send an email when you are _____.
billboard
47) Write each email as if it were to be displayed on a/an _______.
An SPS brings AC electricity from the wall and charges a battery that is used if AC power is removed from the computer. When AC power is provided to a wall outlet, this AC power is also provided to the outlets on the back of the SPS. The UPS also brings A
compare and contrast a UPS with an SPS
Take pictures or notes so you will remember how to make connections properly. Use an antistatic wrist strap. Do not stack adapters on top of one another. Do not use magnetic tools.
describe three best practices to use when disassemblying a computer
A technician is most likely to use a #1 Phillips screwdriver when replacing parts in a laptop. A flat-tipped screwdriver or scribe might be used to pry parts such as a laptop keyboard or hard drive cover. A cable tester would be used to verify network con
list three tools that a computer technician would most likely use on a weekly basis, and give an example of how the technician might use each tool.
B. No power management is active
S0
A. CPU is not powered, but info in RAM is being refreshed.
B. No power management is active.
E. CPU slowed or stopped, but still powered; unused devices powered down.
S1
E. CPU slowed or stopped, but still powered; unused devices powered down.
F. Computer is shut down by the operating system.
A. CPU is not powered, but info in RAM is being refreshed
S2
A. CPU is not powered, but info in RAM is being refreshed.
B. No power management is active.
C. Power supply reduced power, but RAM is being refreshed.
S3
C. Power supply reduced power, but RAM is being refreshed.
D. Info in RAM is saved to hard drive.
D. Info in RAM is saved to hard drive.
S4
D. Info in RAM is saved to hard drive.
E. CPU slowed or stopped, but still powered; unused devices powered down.
F. Computer is shut down by the operating system.
S5
E. CPU slowed or stopped, but still powered; unused devices powered down.
F. Computer is shut down by the operating system.
C. working
G0
C. Working
D. Sleeping
D. sleeping
G1
C. Working
D. Sleeping
A. soft off
G2
A. Soft off
B. Mechanical off
b. mechanical off
G3
A. Soft off
B. Mechanical off
AC (alternating current)
electricity provided by wall outlet
grounding
A _______ problem occurs when the motherboard or adapter is not properly installed and a trace (a metal line on the motherboard or adapter) touches the computer fram, causing the adapter and possibly other components to stop working
DC (direct current)
type of electriciy used by computer components
electrostatic discharge
_____ is a difference of potential between two items that causes static electricity
capacitator
___ is a component that holds a charge even after the computer is turned off
Disassembly
Before a technician disassembles a computer, several steps should be performed or considered.
The following disassembly tips are helpful:
� Do not remove the motherboard battery, or the configuration information in CMOS will
be lost.
� Use pro
...
Use the right fuse or lose
Never replace a fuse with one that has a higher amperage rating. You could destroy
electronic circuits or cause a fire by allowing too much current to be passed by the fuse,
defeating the fuse's purpose.
...
I/O shield
_ _ _____ is a part what allows for optimum air flow and grounding for the motherboard ports.
Li-ion
___ ___ batteries, which are very light and can hold a charge longer than any
other type. They are also more expensive. Mobile
phones, tablets, portable media players, and digital
cameras also use
Do not power on after a temperature
change
Computers are designed to work within a range of
temperatures, but sudden change is not good for
them. If a mobile device is in a car all night and the
temperature drops, allow the device to return to
room temper
...
ACPI (advanced configuration and power interface)
_ _ _ _ gives the BIOS and operating system control over various devices' power and modes of operation
Wake on LAN
___ __ ___ feature allows a network administrator to control the power
to a workstation remotely and directs the computer
to come out of sleep mode.
Wake on Ring
___ __ ____ allows a computer to come out of sleep mode
when the telephone line has an incoming call.
dual-rail
A ___-___ power supply
has two +12V output lines.
Main functions of a power supply include
1. convert AC to DC
2. provide DC voltage to the motherbard, adapters, and peripheral devices
3. provide cooling and facilitate air flow through the case
There are four basic checks for
power supply situations: (1) wall outlet AC voltage, (2) DC voltages going to the motherboard,
(3) DC voltages going to a device, and (4) ground or lack of voltage with an outlet tester.
...
power supply tester
A ___ ____ ____ can be used to check DC power levels on the different power supply connectors
The following can help with lap-
top overheating:
� Locate air vents and keep them unblocked and clean. Do not place a laptop on your lap
to work.
� In the BIOS settings, check the temperature settings for when fans turn on.
� Check the laptop manufacture
...
clamping voltage
The level at which surge protector starts protecting the
computer. The lower the value, the better the protection.
clamping speed
How much time elapses before protection begins.
The lower the value, the better the protection. Surge
protectors cannot normally protect against power spikes
(overvoltages of short duration) because of their rated
clamping speed.
energy absorption/dissipation
The greater the number of joules (a unit of energy) that
can be dissipated, the more effective and durable a surge
protector is. This feature is sometimes called energy
absorption. A surge protector rating of 630 joules is more
effective than a rating of