all stuff

Question 1

Multimeter’s used for ….

Answer 1

testing power supply, coaxial, serial, paralell cables. Battery, fuses, and resistors.

Question 2

automatically adjust to the

correct range for the test selected and the voltage present

Answer 2

digital multimeter

Question 3

must be set manually to the correct range and can

be damaged more easily by overvoltage

Answer 3

analog multimeter

Question 4

You can use a multimeter to find out whether a power supply is properly converting
AC power to DC power by …..

Answer 4

Measure the DC power going from the power
supply to the motherboard, A power supply that does not meet the measurement
standards should be replaced

Question 5

capacitors inside the
power supply retain potentially fatal voltage levels long after the power has been off.
TRUE/FALSE?

Answer 5

True

Question 6

Surge suppressors/protectors and uninterruptible power

supply (UPS)

Answer 6

can protect against surges and spikes.

Question 7

spikes and surges

Answer 7

Both can damage or destroy equipment and come through data lines (RJ-11 phone or RJ-45 ethernet) as well as through
power lines

Question 8

how to check for a quality surge protector

Answer 8

Check for a TVSS (transient voltage surge suppressor) rating

Question 9

battery backup unit AKA ….

Answer 9

UPS - uninterruptable power supply
or
SPS - surge protector supply

Question 10

UPS function

Answer 10

provides emergency
power when a power failure strikes (a blackout) or when power falls below minimum
levels (a brownout).

Question 11

what are the two different types of battery backup units?

Answer 11

UPS and SPS

Question 12

whats the difference between UPS and SPS?

Answer 12

UPS provides power to computer from its battery at all times, away from AC current. SPS battery is used only when AC power fails.

Question 13

Joules

Answer 13

Joules measure electrical energy

Question 14

You can calculate the correct VA rating for your equipment by ….

Answer 14

adding up the wattage ratings of your computer and monitor and
multiplying the result by 1.4. If your equipment is rated in amperage (amps),
multiply the amp rating by 120 (volts) to get the VA rating

Question 15

Motherboards use a one-chip or two-chip chipset

Answer 15

northbridge

and southbridge chips

Question 16

most motherboards feature some type of cooler for the northbridge chip because …

Answer 16

if it overheats it may damage the motherboard and it will need to be replaced

Question 17

southbridge carries low or high speed traffic?

Answer 17

low speed, northbridge carries highspeed

Question 18

types of cooling methods

Answer 18

passive heat sink, active heat sink, heat pipe (latest trend)