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Why is it important to conduct a visual inspection before connecting any wires and circuits?
A visual inspection helps identify installation issues, damaged components, and potential hazards such as overloaded outlets, improper connections, and interference from other equipment.
How does preventive maintenance help in avoiding electrical problems?
Preventive maintenance catches and fixes problems before they happen by conducting regular inspections, checking for signs of wear and tear, and replacing damaged parts immediately.
What is the difference between a network diagram and a network map?
A network diagram is a schematic that shows the nodes and connections in a computer or telecommunications network, while a network map provides a visual representation of devices, their relationships, and the network services that connect them.
What are the three basic electrical properties that a multimeter can measure?
A multimeter can measure voltage, current, and resistance.
What tool is used to test the polarity of wiring in an electrical system?
A ground impedance tester is used to accurately determine the polarity of wiring and other wiring conditions.
What is the difference between condition-based maintenance and predictive maintenance?
Condition-based maintenance involves observing machines and systems for changes that indicate possible failure, while predictive maintenance uses sensor devices to monitor systems in real time and warn technicians of potential issues.
What are the four steps to data interpretation?
What are the two types of multimeters?
The two types of multimeters are analog multimeters and digital multimeters (DMM or DVOM).
How can you check if a fuse is in good condition using a multimeter?
Set the multimeter to continuity mode or resistance (Ω). Connect the probes to both ends of the fuse. If the meter reads zero (0) ohms, the fuse is in good condition. If it shows infinity (∞), the fuse is broken or blown.
What are the three main causes of electrical accidents?
The three main causes of electrical accidents are unsafe equipment or installation, unsafe environment, and unsafe work practices.
Why is compatibility testing important for electronic components?
Compatibility testing ensures that electronic components function properly in their intended environment, including different platforms, operating systems, chipsets, peripherals, and manufacturers. This helps prevent malfunctions and ensures smooth integration.
What is the main function of a multimeter?
The main function of a multimeter is to combine multiple measurement functions into one unit for measuring electrical properties.
Why is performing a root cause analysis an important step in troubleshooting?
Root cause analysis helps determine the actual cause of a malfunction so that permanent solutions can be applied, preventing the issue from happening again in the future.
Why is using water to put out an electrical fire dangerous?
Water conducts electricity, so using it to put out an electrical fire can increase the risk of electric shock and spread the fire further instead of extinguishing it.
What are two key skills required for a computer hardware field technician?
Two key skills required for a computer hardware field technician are:
What is the difference between an analog and a digital multimeter?
Analog multimeters use a needle and a scale to display readings, while digital multimeters (DMMs) use an electronic display to show numerical values.
What is the main purpose of troubleshooting in electricity and electronics?
The main purpose of troubleshooting is to systematically identify and repair failed processes in wires and circuits to ensure proper functioning of electrical and electronic systems.
What is the purpose of electrical maintenance?
The purpose of electrical maintenance is to diagnose faults, perform routine servicing, and repair electrical components in wiring and electronic circuits to ensure safety and proper functioning.
What is the purpose of documentation in computer science and ICT?
Documentation in computer science and ICT helps in recording project details, system designs, software functionalities, and testing criteria. It ensures clarity, facilitates troubleshooting, and guides users and technicians in understanding and using the system effectively.
What is another name for a multimeter?
A multimeter is also known as a volt/ohm meter (VOM) or multi-tester.