What action will correct patchy, faint, uneven or intermittent print on a dot matrix printer?
1. Replacing the ribbon
2.Replacing the timing belt
3.Adjusting the paper feed tension
4.Adjusting the tractor feed tension
What is your first action when windows reports that your hard drive is developing bad sectors?
1.replace the hard drive
2.run secclean from dos
3.run defrag on the hard drive
4.run scandisk with the "thorough" option
A customer calls and says her computer won't boot, she can hear noises and can see lights on the box, but nothing comes up on the screen, what should you take to the site to fix the problem?
1. hard drive
2.video card
3.power cable
4. power supply
If the voltage on pin 1 of the power supply is not in the range of _____ volts, the PC will not boot.
1.12:00 AM
2.12:00 AM
3. 50 - 110
4.2.5 - 5
Which component must be vacuumed or replaced during preventative maintenance on a laser printer?
1.Scanning mirror
2.Toner cartridge
3.Ozone filter
4. All of the above
A capacitor is measured in which of the following units?
1.Volts
2.Ohms
3.Farads
4.Resistance
A parity error usually indicates a problem with
1.memory
2.hard drive
3. hard drive controller
4.I/O controller
A PC with a 486DX2 processor runs internally at 50Mhz. What speed would its external logic be running?
1.l0Mhz
2.25Mhz
3.50Mhz
4.100 Mhz
A wrist grounding strap contains which of the following:
1.Surge protector
2.Capacitor
3.Voltmeter
4.Resistor
An important first step in troubleshooting which component in a laser printer is causing a jam is to:
1.note where in the paper path the paper stops
2. check all voltages
3.look up error codes
4. turn the printer off, then on again
Dust in a computer actually increases the size of the magnetic fields inside it. This is not good, so you must occasionaiy dust, I trust. What's the best way to do this?
1.reverse vacuum
2.any small vacuum device
3.blow real hard on the system board
4.non-static compressed air
ESD potential decreases with the use of:
1.De-ionizing fans
2.A wrist strap
3.Rubber gloves with matching cap
4.A static meter
Every video card must have?
1.CMOS
2.RAM
3.CPU
4. All of the above
How is ink transferred to paper in common ink jet printers?
1.Boiling ink
2.Crystal
3.Motorized pump
4.Screens deflect ink on the paper into the proper positions
How many DMA channels are there in an AT class PC?
1.3
2.4
3.7
4.8
How many IRQs does a chain of USB devices require?
1.1
2.2
3.3
4.4
IDE cables have how many pins?
1.25
2.50
3.100
4.40
In inkjet printers, what is the most common problem with the paper tray?
1.inconsistent printing
2.malfunctioning pick-up rollers
3.misalignment of the sheet feeder
4.. paper jamming on the ink cartridge
In laser technology, what happens during the transfer stage?
1. Residual toner is transferred to the waste receptacle
2.The laser transfers the image from the drum to the paper.
3.The image is transferred from the drum to the paper
4.A negative charge is transferred to the surface of the drum
On a dot-matrix printer, regular lube maintenance should be followed, but this component should never be lubed
1. Platten bearings
2.Carriage rails
3.Printhead
4.Paper advance bearings
On a leased line installation a known good external modem shows no carrier detect light. Where is the problem most likely to be?
1.In the modem
2.In the phone line
3. In the computer
4.In the DTC equipment
One of the major components of a PC is the Central Processing Unit (CPU) which can be best described as:
1.The device that sends the monitor signals telling it what to display
2. The area that regulates all of the system power usage
3.The area where all the of the Basic input/output routines are stored
4.The area where all of the processing takes place
Resistance is measured in units of:
1.ohms
2.farads
3.helids
4.amperes
Static electricity thrives is which type of environment?
1.cold and humid
2. warm and humid
3.warm and dry
4.cold and dry
The buffers statement is found in what file?
1.Config.sys
2.Autoexec.ncf
3.Autoexec.bat
4.Neb.cfg
The digital multimeter is set for DC, Ohm and 20k. You will read _____ while measuring a good 2 amp fuse.
1.2
2.0
3.0.02
4.0.2
The following process determines the amount of memory present, the date/ time, and which communications ports and display adapters are installed in a microcomputer?
1. Start-up utility test
2.Power on Self Test
3.Power up boot process
4.Power on start up process
The following process determines the amount of memory present, the date/ time, and which communications ports and display adapters are installed in a microcomputer?
1. Start-up utility test
2.Power on Self Test
3.Power up boot process
4.Power on start up process
The monitor power LED is 'on' but the monitor screen is completely dark. The least likely cause of the problem is:
1.Defect in the computers video circuitry
2.Disconnected video cable
3.Defective monitor
4.System RAM problem
What are the most likely conditions for ESD?
1.Hot and dry
2.Hot and wet
3. Cold and dry
4.Cold and wet
What configuration should a Volt-Ohm meter he set to when testing a fuse?
1.DC volts
2. AC volts
3.Amperage
4.Ohms
What IRQ is used for COM 2?
1.4
2.3
3.2
4.1
What is the i/o address for com1?
1.3.00E+08
2.3bc
3.5f8
4.3f8
What is the i/o address for com3?
1.3.00E+08
2.345
3.ff8
4.5.00E+08
What is the recommended way to fix the registry description for the printer driver
1.Delete the spool file
2.Run regedit.exe and remove any reference to the printers
3.Run sysedit.exe and remove any reference to the printers
4.Remove the printer driver and re¬install it
What is the size of the reserved memory area?
1.64 kb
2.384 kb
3.640 kb
4. 1024 kb
What should you replace if the brightness or contrast adjustments were malfunctioning on a laptop?
1.fuse
2.led display
3.adjustment switch
4.led display cable
What voltage does a 586 system use?
1. +12 volts
2. + 5 volts
3.+ 8 volts
4. +3.3 volts
Which controller would support an external CD-ROM drive?
1.ESDI
2.ARLL
3.MFM
4.SCSI
Which device uses a DMA channel?
1.Modem
2.Network Card
3.Sound Card
4.All of the above
Which of the following items would require you t.o comply with EPA disposal guidelines?
1.Keyboard
2.System board
3.Power supply
4.Battery
Which of the following statements is true?
1.Two SCSI devices connected to a computer can have the same ID if they are both hard drives.
2.Each SCSI device must have its own ID
3.All SCSI devices must have the same ID
4.SCSI ID's are irrelevant
Which provides the fastest data access time?
1.RAM
2.ROM
3.CD-ROM
4.Hard disk
Which REQUIRES an anti-static bag for transport?
1.Monitor
2.Floppy disks
3.Power supply
4.I/O controller
Which would you have to upgrade to install an EIDE drive?
1. RAM BIOS
2.A 286 CPU
3.Controller board
4. ISA motherboard
With a dot matrix printer, light then dark print is most commonly caused by:
1.Erratic paper advancement
2.Erratic ribbon advancement
3.Misalligned print head
4.Overheating print head
You are about to install a second IDE hard drive in a PC that has only one IDE adapter. Your first hard drive will still be the boot drive. How should the second drive be configured?
1.as a master
2.as a secondary
3.as a slave
4.as a primary