Please prove all the correct answer without explain
QUESTION 1
Which of the voltages below ISN'T supplied by the power supply on your system?
A. 24V
B. +12
C. -12
D. +5
QUESTION 2
The auxiliary 4-pin power cord provides power to the processor
True
False
QUESTION 3
What term is used to refer to components that are commonly replaced but not repaired?
A. TRU - Technician replaceable unit
B. SRU - Self replaceable unit
C. FRU - Field replaceable unit
D. URU - user replaceable unit
QUESTION 4
Spacers are necessary to keep motherboard from touching the metal case, which might cause a short
True
False
QUESTION 5
Why is it important to remove loose jewelry before working inside a computer case?
A. Because the jewelry might change color from the waves the computer gives out
B. Because the jewelry might get caught in the components as you work or might fall into the computer
C. None of the above
D. Because the jewelry will cause the equipment you use to show the wrong results
QUESTION 6
What marking on a ribbon cable identifies pin 1?
A. The number 1 is on the cable
B. There is no markings to identify it
C. None of the above
D. A colored stripe usually indicates it
QUESTION 7
You just replaced a motherboard in a desktop computer. When installing the front panel wires to the motherboard front panel header, how do you know which pins to use for each wire if the pins on the header are not labeled?
A. All of the above
B. Use the motherboard user guide online
C. Make a diagram of the board and the wires using pen and paper
D. Take a picture with a cell phone before you take the old motherboard out
QUESTION 8
If you press and hold the power button for 3 seconds after you unplug it from the AC cord, it will not discharge the power supply
True
False
QUESTION 9
The reason that PC technicians don't usually repair a power supply is because there are high voltages present posing harm and it is not worth the time to repair them.
True
False
QUESTION 10
What is the electrical voltage from the house outlet to the power supply in the USA?
A. 115V
B. 220V
C. 230V
D. 130V
QUESTION 11
You have to use an ESD strap while working on laptops.
True
False
QUESTION 12
Disassembling most desktops is straightforward. But, why is the service manual so important to have when you disassemble a laptop?
A. Because it is required by the warranty for the laptop
B. A service manual or documentation is not needed
C. The bodies for laptops vary so much, you need the documentation to properly take it apart.
D. None of the above
QUESTION 13
It is never safe to touch the inside of a computer when it is running
True
False
QUESTION 14
What is the purpose of raised screw holes or standoffs installed between the motherboard and desktop case?
A. To prevent a short that might happen if lines or circuits on the bottom of the motherboard touch the case when the system is running.
B. Standoffs are not used to mount the motherboard to the case
C. None of the above
D. To raise the motherboard in case it is the wrong case size
QUESTION 15
When installing drives, it may be easier to connect cables to the drives before sliding them into the bay
True
False
QUESTION 16
When assembling a desktop computer, which do you install first, the drives or the motherboard?
A. The motherboard because if the drives stick out too far, the motherboard might not go in easy or at all
B. It really doesn't matter
C. The drives
QUESTION 17
The first thing to check before servicing a laptop is if it is under warranty, so the manufacturer can then perform the repair.
True
False
QUESTION 18
It is totally safe to take the screws and the cover off from a power supply and touch the components inside
True
False
QUESTION 19
A four-year old laptop will not boot and presents error messages on screen. You have verified with the laptop technical support that these error messages indicate the motherboard has failed and needs replacing. What is the first question you should ask yourself before performing the repair?
A. Is the repair cost too much as opposed to buying a new laptop?
B. Is the unit still under warranty?
C. None of the above
D. Is the motherboard still available?
QUESTION 20
How many pins does the CPU auxiliary power connector on a motherboard have?
A. 2
B. 3
C. 4
D. 6
QUESTION 21
When taking a computer apart, why is it important to not stack boards on top of each other?
A. All of the above
B. The boards can cause static on each other
C. You can dislodge chips from one or both boards
D. You can damage one or both boards
QUESTION 22
How should you rock an expansion card to remove it from its slot?
A. Rock the card sideways
B. No need to rock it, when you take the screw off, it pops right out!
C. Rock the card lengthwise
D. Yank the card straight up
QUESTION 23
You disassemble and reassemble a desktop computer. When you first turn it on, you see no lights and hear no sounds. Nothing appears on the monitor screen. What is the most likely cause of the problem?
A. Power cords to the motherboard are not connected
B. You forgot to plug in the monitor AC power cord cable
C. A wire is obstructing the cooling fan
D. A memory module is not seated correctly
QUESTION 24
Why is it important to buy a power supply that's close to the requirements for your system instead of buying a higher wattage power supply?
A. You can buy any higher rated power supply for any system
B. Excess energy is wasted as heat
C. None of the above
D. It will burn out your motherboard
QUESTION 25
It is safe to wear your ESD strap while the computer is on
True
False