What unit is used to measure voltage?
What is the unit of measuring current?
Which of the following units is used to measure resistance?
What type of voltage does a PC use?
In an IEC-320 plug, which wire carries electrical voltage?
Which of the following wires carries no voltage?
A surge suppressor should be rated at a minimum of ____ joules.
Power supplies come with a standard ____ for the motherboard and interior devices.
The P1 connector from the power supply is plugged into the ____ socket.
Which connector is the most common type of connector used for devices that require 5 V or 12 V of power?
|C)||P4 12 V|
The 3.5-inch floppy drive uses the ____ connector.
Power supplies are rated in ____.
What type of power connector is L-shaped?
A coworker is taking a computer overseas and asks you what concerns he should have. What do you tell him?
|A)||There are no issues to be concerned about.|
|B)||His PC will not work overseas.|
|C)||Make sure he switches the power supply to 230AC.|
|D)||Make sure he switches the power supply to 115AC.|
The standard modern power supply provides ____ volts of power.
|A)||3.3, 5, and 12|
|B)||5 and 12|
|C)||6 and 12|
Which of the following uses the soft power feature?
|D)||Molex power supplies|
Which power supply never turns off?
Molex connectors are used for ____ power.
Most case fans have standard ____ connectors that are easy to plug in.
Expansion bays must be covered by the ____ to maintain proper airflow inside the case.
The ____ power supply has a 24-pin main motherboard that resembles a 20-pin P1 connector.
|D)||P4 21 V|
Which industry group came up with a non-ATX standard motherboard and power supply called EPS12 V?
|A)||Hardware System Infrastructure|
|B)||Server Power Infrastructure|
|C)||Server System Infrastructure|
|D)||Software System Infrastructure|
A(n) ____ power supply converts energy efficiently.
What should be the outputs of the hot, neutral, and ground wires when tested with a multimeter?
|A)||0 V, 115 V, 0 V|
|B)||0 V, 115 V, 2 V|
|C)||112 V, 115 V, 0 V|
|D)||115 V, 0 V, 0 V|
How is DC voltage represented on multimeters?
|A)||V with a ~ below it|
|B)||V with a dash below it|
|C)||V with a ~ above it|
|D)||V with a solid line above a dashed line|
A PC doesn’t work. What should you check first?
|A)||Power supply voltages|
|B)||12 V power supply|
|C)||Ensure DC plug is plugged in|
|D)||Ensure AC plug is plugged in|
Power supplies are protected from spikes of AC current with the use of a ____.
|D)||All of the above|
What UL rating should you look for on a surge suppressor?
How many watts of power does a typical hard drive in a PC require?
How many watts of power does an Athlon64X2 CPU require at peak performance?
The notches in the Molex connector that guides installation are called ____.
Which is the latest ATX power supply standard?
Which of the following is a correct statement?
|A)||An open case allows better cooling.|
|B)||An open case ruins airflow and loses cooling efficiency.|
|C)||Cooling the PC is not recommended.|
|D)||Large cases do not require cooling.|
What class of fire extinguisher should be used on an electrical fire?
What is the amount of amps and volts needed by a particular device to function called?