Barrister Combo PC/Printer Aptitude Test
This test is to be taken so we may ascertain your level of knowedlge concerning PC's and Printers before allowing you to accept service calls.
Questions and Answers
- 1.
How many different voltage rails are used in an ATX power supply?
- A.
1
- B.
2
- C.
3
- D.
0
Correct Answer
C. 3Explanation
An ATX power supply typically uses three different voltage rails. These rails are +3.3V, +5V, and +12V. Each rail provides a different voltage level to power different components of a computer system. The +3.3V rail powers components such as RAM and PCI-E slots, the +5V rail powers devices like USB ports and SATA drives, and the +12V rail powers components like the CPU and graphics card. Therefore, the correct answer is 3.Rate this question:
-
- 2.
What networking protocol is used to access the Internet?
- A.
TCP-IP
- B.
HTTP
- C.
HTTPS
- D.
802.11
Correct Answer
A. TCP-IPExplanation
TCP-IP is the correct answer because it is the primary networking protocol used to access the Internet. TCP-IP stands for Transmission Control Protocol/Internet Protocol, which is a set of rules that allows computers to communicate with each other over the Internet. It provides reliable and secure transmission of data packets between devices, ensuring that information is properly delivered from the source to the destination. HTTP and HTTPS are protocols used for accessing web pages, while 802.11 is a standard for wireless local area networks (WLANs).Rate this question:
-
- 3.
A computer using onboard VGA ports for video will power up, but won't display video. What should be replaced first?
- A.
CPU
- B.
Fan
- C.
Heatsink
- D.
Motherboard
- E.
Other
Correct Answer
D. MotherboardExplanation
If a computer using onboard VGA ports powers up but doesn't display video, the first component that should be replaced is the motherboard. The motherboard is responsible for connecting all the components of the computer, including the VGA ports. If the onboard VGA ports are not functioning properly, it indicates a problem with the motherboard. Replacing the motherboard should resolve the issue and allow the computer to display video.Rate this question:
-
- 4.
A computer will power up, but emits a steady beeping with no long or short beeps. What is the most likley cause?
- A.
Faulty power supply
- B.
Bad video card
- C.
Faulty ram
- D.
Faulty CPU
Correct Answer
C. Faulty ramExplanation
The most likely cause for a computer powering up but emitting a steady beeping sound with no long or short beeps is faulty RAM. When the RAM is faulty or not properly seated, it can cause the computer to fail the POST (Power-On Self Test) and trigger a beep code. This steady beep code indicates an issue with the RAM, which could be due to a defective module or improper installation.Rate this question:
-
- 5.
A user can check their email, but can't access the Internet. is the ethernet card faulty?
- A.
Yes
- B.
No
Correct Answer
B. NoExplanation
The given scenario suggests that the user is able to check their email but cannot access the internet. This indicates that the ethernet card is not faulty. If the ethernet card was faulty, it would affect both email and internet access. Since the user can still check their email, it implies that the issue lies elsewhere, possibly with the internet connection or settings. Therefore, the correct answer is No.Rate this question:
-
- 6.
What is the difference between RAID 0 and RAID 1?
- 7.
After replacing a motherboard the system will power up, but fails to display video. What should be done first?
- A.
Clear the CMOS
- B.
Barebone the system
- C.
Unplug the unit
- D.
Other
Correct Answer
B. Barebone the systemExplanation
Bareboning the system should be done first because it involves removing all unnecessary components and connecting only the essential ones, such as the CPU, RAM, and power supply. This helps to eliminate any potential conflicts or issues caused by other components. If the system still fails to display video after bareboning, then further troubleshooting steps can be taken.Rate this question:
-
- 8.
How do you test a power supply without a multimeter?
- A.
Connect the red wire to any black wire
- B.
Use a paperclip
- C.
Connect the green wire to any black wire
- D.
Other
Correct Answer
C. Connect the green wire to any black wireExplanation
Connecting the green wire to any black wire is a method to test a power supply without a multimeter. This is because the green wire is the power supply's "power on" signal and the black wire is the ground. By connecting them, it completes the circuit and allows the power supply to turn on. This method is commonly used to test if a power supply is functional before connecting it to other components.Rate this question:
-
- 9.
A laptop screen will display video but it is extremely dark. Attempting to increase the brightness has no effect. What is the most likely cause?
- A.
Faulty backlight on the screen
- B.
Display brightness
- C.
Video drivers
- D.
Other
Correct Answer
A. Faulty backlight on the screenExplanation
The most likely cause for a laptop screen displaying video but being extremely dark, with no effect on increasing the brightness, is a faulty backlight on the screen. The backlight is responsible for illuminating the screen, and if it is not functioning properly, it can result in a dark display.Rate this question:
-
- 10.
A computer will power up and boot, but shuts itself off after a few minutes. You cannot power up the computer again for several minutes. After waiting 5 minutes you are able to power the computer back on again, but after a few minutes it shuts itself off again. What is the most likely cause?
- A.
Bad heat sink
- B.
Faulty CPU fan
- C.
Bad CPU
- D.
Virus
Correct Answer
B. Faulty CPU fanExplanation
The most likely cause for the computer shutting off after a few minutes and not being able to power up again for several minutes is a faulty CPU fan. The CPU fan is responsible for cooling down the processor, and if it is not functioning properly, the CPU can overheat and trigger the computer to shut down as a safety measure. The waiting time before being able to power up again suggests that the CPU needs time to cool down before it can be used again.Rate this question:
-
- 11.
A computer is constantly encountering blue screen errors. Re-installing the operating system has no effect. What is the most likely cause?
- A.
Faulty RAM Memory
- B.
Bad CPU
- C.
Video Card
- D.
Other
Correct Answer
A. Faulty RAM MemoryExplanation
The most likely cause for the computer constantly encountering blue screen errors, despite re-installing the operating system having no effect, is faulty RAM memory. RAM (Random Access Memory) is responsible for temporarily storing data that the computer needs to access quickly. If the RAM memory is faulty, it can lead to data corruption and system crashes, resulting in blue screen errors. Re-installing the operating system does not fix the issue because it is related to the hardware (RAM) rather than the software.Rate this question:
-
- 12.
A faulty PCI modem card will prevent a computer from booting up.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
A faulty PCI modem card can prevent a computer from booting up because it can cause conflicts with other hardware components or the operating system. When the computer tries to start up, it may encounter errors or fail to initialize properly due to the faulty card. This can result in a failure to boot up and may require troubleshooting or removing the card to resolve the issue.Rate this question:
-
- 13.
A regular household vacuum can be used to clean up loose toner.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
A regular household vacuum should not be used to clean up loose toner. Toner particles are very fine and can easily become airborne, potentially causing respiratory issues or damage to the vacuum cleaner. Additionally, toner can also be flammable, and using a regular vacuum can pose a fire hazard. It is recommended to use a specialized toner vacuum or contact a professional for proper toner cleanup.Rate this question:
-
- 14.
The output from a printer is fading evenly and is getting lighter with every print. What is the most likely cause?
- A.
Bad charge roller
- B.
Low toner
- C.
Bad power supply
- D.
Bad main drive assembly
Correct Answer
B. Low tonerExplanation
The most likely cause for the fading and lighter print output is low toner. As the toner level decreases, there is less toner available to transfer onto the paper, resulting in a lighter print. This is a common issue with printers and can be resolved by replacing the low toner cartridge with a new one.Rate this question:
-
- 15.
What writes the image to the image drum?
- A.
LED
- B.
LASER
- C.
LAMP
- D.
Other
Correct Answer
B. LASERExplanation
A laser writes the image to the image drum. Lasers are commonly used in printers and photocopiers to create an electrostatic image on the surface of the image drum. This image is then transferred to the paper or other media during the printing process. The laser emits a highly focused beam of light that selectively charges areas on the drum, creating the desired image. This precise and controlled process allows for accurate reproduction of text and graphics.Rate this question:
-
- 16.
The printer will create a document of acceptable print quality, but the wording comes out as garbage characters. What is the most likely cuase?
- A.
Bad DC controller
- B.
Bad driver
- C.
Customer Error
- D.
Bad power supply
Correct Answer
B. Bad driverExplanation
The most likely cause for the printer creating a document with garbage characters is a bad driver. A driver is a software that allows the computer to communicate with the printer, and if it is faulty or outdated, it can result in incorrect translation of the data, leading to the generation of garbage characters.Rate this question:
-
- 17.
If your printer is using a parallel port, what is it most likely named?
- A.
USB1
- B.
LPT2
- C.
LPT1
- D.
Parallel
Correct Answer
C. LPT1Explanation
If a printer is using a parallel port, it is most likely named LPT1. LPT stands for Line Printer, and it is a standard name for parallel ports in computers. The number 1 indicates that it is the first parallel port on the computer. Therefore, LPT1 is the correct answer for a printer using a parallel port.Rate this question:
-
- 18.
A printer will produce an image, but it smears when touched. What is the most likely cause?
- A.
Web Wipe
- B.
Laser
- C.
Toner
- D.
Fuser
Correct Answer
D. FuserExplanation
The most likely cause for the printer smearing when touched is the fuser. The fuser is responsible for melting the toner onto the paper, and if it is not functioning properly, the toner may not adhere correctly, leading to smearing when touched.Rate this question:
-
- 19.
What charges the paper in preparation of transferring the image to the paper?
- A.
Transfer corona wire/Transfer Roller
- B.
Power Supply
- C.
Laser
- D.
Charge Roller
Correct Answer
A. Transfer corona wire/Transfer RollerExplanation
The transfer corona wire or transfer roller charges the paper in preparation for transferring the image to the paper. This charging process is necessary to attract the toner particles from the drum onto the paper, ensuring that the image is properly transferred during the printing process. The power supply provides the necessary electrical energy to activate the transfer corona wire or transfer roller. The laser, on the other hand, is responsible for creating the image on the drum. The charge roller is not directly involved in charging the paper, but rather in charging the drum surface to attract the toner particles.Rate this question:
-
- 20.
What removes excess toner from the image drum?
- A.
Cleaning blade
- B.
Web wipe
Correct Answer
A. Cleaning bladeExplanation
The cleaning blade is responsible for removing excess toner from the image drum. As the drum rotates, the cleaning blade scrapes off any residual toner that is not transferred onto the paper during the printing process. This ensures that the drum remains clean and ready for the next printing cycle. The cleaning blade plays a crucial role in maintaining the quality of the printed output and preventing any toner smudges or streaks on the paper.Rate this question:
-
- 21.
What component clears the image from the image drum after it has printed?
- A.
Toner
- B.
Fuser
- C.
Transfer Roller
- D.
Erase Lamp
Correct Answer
D. Erase LampExplanation
The erase lamp is responsible for clearing the image from the image drum after it has been printed. This component emits a bright light that removes any residual image or toner from the drum, ensuring that it is clean and ready for the next printing job. The erase lamp plays a crucial role in maintaining the quality and clarity of printed documents by erasing any remnants of the previous image.Rate this question:
-
- 22.
A laser printer fusing assembly can be as hot as 150 degress or more.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
A laser printer fusing assembly can reach temperatures of 150 degrees or higher because it uses heat to fuse toner onto the paper. This high temperature is necessary to melt the toner particles and bond them to the paper fibers, ensuring that the printout is durable and smudge-resistant. It is important to exercise caution when handling a laser printer fusing assembly to avoid burns or other injuries.Rate this question:
-
- 23.
A computer will not boot. Reinstalling the operating system has no effect. What are the most likely choices? ( choose 2)
- A.
Bad Processor
- B.
Bad Hard Drive
- C.
Bad OS disks
- D.
Other
Correct Answer(s)
B. Bad Hard Drive
C. Bad OS disksExplanation
If reinstalling the operating system has no effect on the computer's ability to boot, it suggests that the issue lies with either the hard drive or the OS disks. A bad hard drive can prevent the computer from accessing the necessary files to start up, while bad OS disks can result in corrupted or incomplete installation of the operating system. Both of these scenarios can lead to the computer's inability to boot properly.Rate this question:
-
Quiz Review Timeline +
Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
-
Current Version
-
Mar 20, 2023Quiz Edited by
ProProfs Editorial Team -
Sep 09, 2010Quiz Created by
BarristerUser1
Back to top