#1
Which of the following is a common cause of a computer not turning on?
Faulty power supply
ExplanationPower supply failure prevents computer startup.
#2
What should be the first step in troubleshooting an electrical circuit?
Check the power source
ExplanationVerifying power source integrity is initial circuit troubleshooting.
#3
What does the term 'blue screen of death' typically refer to?
A critical system error in Windows
ExplanationBlue screen indicates critical Windows error.
#4
In electrical circuits, what does the term 'short circuit' refer to?
An unintended connection between two points with different potentials
ExplanationShort circuit is unintended connection with different potentials.
#5
In computer hardware troubleshooting, what does the term 'dead pixel' refer to?
A malfunctioning pixel on a display screen
ExplanationDead pixel is malfunctioning display screen pixel.
#6
What does the term 'BIOS' stand for in computer hardware?
Basic Input/Output System
ExplanationBIOS stands for Basic Input/Output System.
#7
A multimeter is used for which of the following purposes?
Measuring voltage, current, and resistance
ExplanationMultimeter measures voltage, current, and resistance.
#8
What is the primary function of a BIOS chip in a computer?
To store system settings
ExplanationBIOS chip stores computer system settings.
#9
What is the purpose of a POST test during computer boot-up?
To check hardware components for proper functioning
ExplanationPOST test verifies hardware functionality during boot-up.
#10
What does ESD stand for in the context of hardware troubleshooting?
Electrostatic discharge
ExplanationESD is electrostatic discharge, a hardware damage risk.
#11
Which of the following is a common indicator of a failing hard drive?
Frequent system crashes
ExplanationFrequent crashes may indicate hard drive failure.
#12
What is the primary function of a surge protector in an electrical system?
To protect devices from voltage spikes
ExplanationSurge protector guards against voltage surges.
#13
Which of the following tools is commonly used for testing continuity in electrical circuits?
Ohmmeter
ExplanationOhmmeter verifies electrical circuit continuity.
#14
What is the purpose of thermal paste in a computer?
To facilitate heat transfer between the CPU and the heatsink
ExplanationThermal paste enhances CPU heat dissipation.
#15
What is the purpose of a POST card in computer troubleshooting?
To diagnose hardware issues by displaying error codes
ExplanationPOST card reveals hardware problems with error codes.
#16
What does the term 'bricking' refer to in hardware troubleshooting?
Rendering a device completely inoperable
ExplanationBricking makes device completely unusable.
#17
What is the purpose of a loopback plug in network troubleshooting?
To test the functionality of network ports
ExplanationLoopback plug checks network port functionality.
#18
What is the primary purpose of a thermal imaging camera in hardware troubleshooting?
To detect overheating components
ExplanationThermal camera finds overheating hardware.