GCS - Chapter 2: Power Supply, UPS and Case

 ANSWER THE QUESTION :

1.    What type of UPS uses the battery-powered circuit as its primary circuit?

A	Permanent UPS
B	On line UPS
C	Connected UPS
D	Primary UPS

2.    Which lead contains –12Volts in the computer power supply?

A	1
B	2
C	3
D	4

3.    What is the maximum number that computer can keep in 1 byte?

A	100
B	128
C	255
D	256

4.    What are the four types of DC voltage usually produced by a power supply?

5.    A 15 pin, three row, female connector on the back of a PC would be used for _____.

6.    Your PC is working perfectly, but you notice the power supply fan has stopped working.          What should you do?

7.    The two most important considerations when selecting a surge suppressor are _____.

8.    How many pins does a serial port connector have?

9.    What function does the power supply perform?

10.         How can you limit the chance of AC line noise?

11.         What type of a connector does a parallel cable have?

12.         What must never be connected to the same UPS which the PC is using?

13.         When connecting a ribbon cable to a connector, how do you know which direction to plug it            in?

14.         What device prevents power interruptions?

15.         What is the best way to protect your computer during an electrical storm?

16.         What can be used to ensure your power supply is not interrupted?

17.         If the output from the power supply drops from +12 Volts to +11.3 Volts, what should you do?

18.         Intermittent lockups and reboots are a sign of what?

19.    You get a call from a user complaining that his computer consistently locks up after only 5       minutes of operation. What is the possible cause?

20.    Which device can protect against power sags?

21.    What device can you use to prevent power surges to your computer?

22.    When considering replacement of a PC's power supply, one should be concerned about?           (choose two)

A	Voltage and ampere rating
B	Size and shape
C	on/off
D	switch placement and wattage

23.    “A Computer technician should attempt to open a power supply in order to repair it.”  Is it        true?

24.    When do you need to use Line Conditioners?

25.    “Surge Suppressors offer really good protection for computer equipment.” Is it true?