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Computer Maintenance Chapter 8
Terms in this set (40)
Which unit is used to measure voltage?
Which unit is used to measure current?
Which unit is used to express the number of amps and volts needed by a particular device to function?
Which unit is used to measure resistance?
What type of voltage does a PC use?
In an IEC-320 plug, which wire carries electrical voltage?
Which type of wire carries no voltage?
A coworker is taking a computer overseas and asks you what concerns he should have. What do you tell him?
Make sure he switches the power supply to 230AC.
What should be the outputs of the hot, neutral, and ground wires, respectively, when tested with a multimeter?
115 V, 0 V, 0 V
How is DC voltage represented on multimeters?
V with a solid line above a dashed line
A surge suppressor should have a rating of at least _______________.
What UL rating is preferred for a surge suppressor?
Large sags in electricity are also known as _______________.
What occurs when power cuts out completely?
How should an electronic device be protected during an electrical storm?
Unplug the device.
Power supplies come with a standard _______________ for the motherboard and interior devices.
Modern motherboards use a 20- or 24-pin _______________.
The standard modern power supply provides _______________ volts of power.
3.3, 5.0, and 12.0
Which connector is the most common type of connector used for devices that require 5 V or 12 V of power?
The largely extinct 3.5-inch floppy disk drive uses the _______________ connector.
Molex connectors are used for _______________ power.
Most case fans have standard _______________ connectors that are easy to plug in but can be forced to be connected the wrong way.
The notches that guide installation in the Molex connector are called _______________.
Modern power supplies have multiple _______________.
What type of power connector is L-shaped?
Which tool uses the soft power feature?
Which power supply never turns off?
Which industry group came up with a non-ATX standard motherboard and power supply called EPS12 V?
Server System Infrastructure
The _______________ power supply has a 24-pin main motherboard that resembles a 20-pin ATX connector.
Which is the latest ATX power supply standard?
In the past, how much power was supplied by power supplies with 12-V rails?
How many watts of power does a typical hard drive in a PC require?
How many watts of power does an Intel i7-4790K require at peak performance?
A(n) _______________ power supply converts energy efficiently.
Power supplies are rated for efficiency based on _______________ drawn to supply sufficient power to the PC.
Empty expansion bays must be covered by a _______________ to maintain proper airflow inside the case.
Which statement is true of computer cases?
An open case lowers cooling efficiency.
A PC does not work. What should you check first?
Whether the AC plug is plugged in
What class of fire extinguisher should be used on an electrical fire?
If a power supply is smoking or heating up, what is the best action to take?
Stop using it and replace it immediately.
THIS SET IS OFTEN IN FOLDERS WITH...
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Computer Maintenance Chapter 7
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