CINS 220 - Quiz 6

Modern motherboards use a(n) _______________- or _______________-pin P1 power connector.

20, 24

The _______________-pin motherboard power connector is backward compatible with the older 20-pin connector so that users do not have to buy a new motherboard if they use an ATX12V 2.0 power supply.

24

Higher-end PCIe cards have a dedicated _______________-pin or _______________-pin PCIe power connector.

6, 8

Many modern ATX motherboards feature a(n) _______________-pin CPU power connector like the one found in the EPS12V standard.

8

The standard modern power supply provides _______________ volts of power. A. 3.3, 5.0, and 12.0 B. 5.0 and 12.0 C. 6.0 and 12.0 D. 12.0

A. 3.3, 5.0, and 12.0

A surge suppressor should have a rating of at least _______________. A. 330-V B. 400-V C. 800-V D. 1449-V

A. 330-V

Which power supply never turns off? A. ATX B. AT C. P8, P9 D. P1

A. ATX

A(n) _______________ power supply converts energy efficiently. A. Active PFC B. EPS 12V C. SPS D. UPS

A. Active PFC

Which unit is used to measure current? A. Ampere B. Ohm C. Volt D. Watt

A. Ampere

The _______________ power supply has a 24-pin main motherboard that resembles a 20-pin ATX connector. A. EPS12 V B. Molex C. mini D. P4 21 V

A. EPS12 V

Most case fans have standard _______________ connectors that are easy to plug in but can be forced to be connected the wrong way. A. Molex B. mini C. micro D. sub-mini

A. Molex

Which connector is the most common type of connector used for devices that require 5 V or 12 V of power? A. Molex B. P1 C. P4 12 V D. sub-mini connector

A. Molex

Modern motherboards use a 20- or 24-pin _______________. A. P1 B. P2 C. P3 D. P4

A. P1

If a power supply is smoking or heating up, what is the best action to take? A. Stop using it and replace it immediately. B. Replace the fuse. C. Switch the voltage from 110 to 220. D. Replace the power supply fan.

A. Stop using it and replace it immediately.

Large sags in electricity are also known as _______________. A. brownouts B. blackouts C. spikes D. surges

A. brownouts

The notches that guide installation in the Molex connector are called _______________. A. chamfers B. channels C. ports D. sockets

A. chamfers

Power supplies come with a standard _______________ for the motherboard and interior devices. A. connector B. hole C. pin D. suppressor

A. connector

_______________ current allows electrons to flow in alternate directions back and forth in a circuit.

Alternating

How many watts of power does a typical hard drive in a PC require? A. 10 B. 15 C. 20 D. 25

B. 15

Which tool uses the soft power feature? A. AT B. ATX C. SATA connectors D. Molex power supply

B. ATX

Which is the latest ATX power supply standard? A. ATX12V 1.3 B. ATX12V 2.0 C. ATX12V 3.0 D. EPS12V

B. ATX12V 2.0

Which statement is true of computer cases? A. An open case allows for better cooling. B. An open case lowers cooling efficiency. C. Small cases do not require cooling. D. Large cases do not require cooling.

B. An open case lowers cooling efficiency.

What type of voltage does a PC use? A. AC B. DC C. Ground D. LC

B. DC

Which unit is used to measure voltage? A. Ampere B. Volt C. Watt D. Ohm

B. Volt

Modern power supplies have multiple _______________. A. fuses B. connectors C. fans D. voltage selectors

B. connectors

The largely extinct 3.5-inch floppy disk drive uses the _______________ connector. A. Molex B. mini C. P1 D. P4 12V

B. mini

How many watts of power does an Intel i7-4790K require at peak performance? A. 50 B. 100 C. 150 D. 200

C. 150

In the past, how much power was supplied by power supplies with 12-V rails? A. 3 amps B. 30 amps C. 18 amps D. 81 amps

C. 18 amps

What occurs when power cuts out completely? A. Sag B. Brownout C. Blackout D. Spike

C. Blackout

What class of fire extinguisher should be used on an electrical fire? A. Class A B. Class B C. Class C D. Class D

C. Class C

In an IEC-320 plug, which wire carries electrical voltage? A. Earth B. Ground C. Hot D. Neutral

C. Hot

A coworker is taking a computer overseas and asks you what concerns he should have. What do you tell him? A. Rest assured that there are no issues with computer use overseas. B. Prepare for the fact that 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.

C. Make sure he switches the power supply to 230AC.

Which unit is used to measure resistance? A. Joule B. Ampere C. Ohm D. Watt

C. Ohm

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

C. Server System Infrastructure

What UL rating is preferred for a surge suppressor? A. UL497A B. UL1497A C. UL1449 D. 1750 joules

C. UL1449

_______________, which are large, square fans, provide extra cooling for key components inside a PC.

Case fans

_______________ is the amount of electrons moving past a certain point on a wire.

Current

What should be the outputs of the hot, neutral, and ground wires, respectively, 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

D. 115 V, 0 V, 0 V

Which type of wire carries no voltage? A. Ground B. Hot C. Multimeter D. Neutral

D. Neutral

What type of power connector is L-shaped? A. P1 B. Mini C. Molex D. SATA

D. SATA

How should an electronic device be protected during an electrical storm? A. Place the device in standby mode. B. Connect the device to a surge suppressor. C. Connect the device to a UPS. D. Unplug the device.

D. Unplug the device.

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

D. V with a solid line above a dashed line

Which unit is used to express the number of amps and volts needed by a particular device to function? A. Ampere B. Ohm C. Volt D. Watt

D. Watt

A PC does not work. What should you check first? A. The tower supply voltages B. The 12 V power supply C. Whether the DC plug is plugged in D. Whether the AC plug is plugged in

D. Whether the AC plug is plugged in

Molex connectors are used for _______________ power. A. central B. AC C. backup D. peripheral

D. peripheral

Empty expansion bays must be covered by a _______________ to maintain proper airflow inside the case. A. case sheath B. case cover C. slot lid D. slot cover

D. slot cover

Power supplies are rated for efficiency based on _______________ drawn to supply sufficient power to the PC. A. amperes B. ohms C. volts D. watts

D. watts

_______________ current allows electrons to flow in one direction around continuous circuits.

Direct

The power supply connects to the power cord via a standard _______________ connector.

IEC-320

L-shaped power connectors are used for _______________ drives.

SATA

_______________ assist in maintaining proper airflow and keeping the dust and smoke out of the case.

Slot covers

A(n) _______________ can protect equipment during power sags.

UPS

A(n) _______________ is used to protect the computer from a power sag or power outages.

UPS

In addition to battery-supplied power, every _______________ has surge suppression and power conditioning

UPS

The V ~ sign stands for _______________ current.

alternating

Large sags in electricity are also known as _______________.

brownouts

In order to check power supply voltages, the power supply must be _______________.

connected

The _______________ test by a multimeter checks whether electrons can flow from one end of the wire to the other.

continuity

To handle differing voltages in multiple countries, most power supplies have _______________ options.

dual-voltage

The flow of negatively charged particles through matter is also known as _______________.

electricity

The _______________ located near the top of the computer case takes air from inside the case and sends it outside.

exhaust fan

Mini power connectors are most often used on older systems for _______________ drives.

floppy disk

The _______________ wire helps excess electricity to return safely to the ground.

ground

The IEC-320 plug has three holes: the _______________, the _______________, and the ground.

hot, neutral

A(n) _______________ is the unit of electrical energy.

joule

A(n) _______________ is also called a volt-ohm meter (VOM) or digital multimeter (DMM).

multimeter

A(n) _______________ is used to test AC outlets.

multimeter

Ideally, rails should be independent and not draw _______________ from each other.

power

A system you maintain locks up randomly. This is very likely due to _______________ problems.

power supply

The _______________ in a computer converts AC power to DC.

power supply

The _______________ provides basic cooling for the PC.

power supply fan

If a multimeter shows infinite _______________ between one end of a wire and the other, then there is no continuity.

resistance

Wires have a slight _______________ to the flow of electrons.

resistance

A(n) _______________ is used to create more connections to power all the devices in a PC.

splitter

A(n) _______________ is inserted between the power supply and the outlet to protect the system from power surges.

surge suppressor

All better _______________ add power conditioning to filter out EMI and RFI.

surge suppressors

The pressure of electrons in a wire is called _______________.

voltage

Every device in a PC requires a certain amount of _______________ to function, derived from the amount of amps and volts it needs.

wattage

All uninterruptible power supplies are measured in _______________ and in volt- amps (VA).

watts

The amount of amps and volts needed by a particular device to perform its function is expressed in _______________.

watts (W)