Tech Basics for Grade 8 Students

What is the main function of the CPU in a computer?

• To provide internet connectivity to the computer.

• The main function of the CPU is to execute instructions and process data.

• To store data permanently in the hard drive.

• To manage the computer's power supply.

Name one type of storage device used in computers.

• USB Flash Drive

• Hard Disk Drive (HDD)

• Optical Disc Drive (ODD)

• Solid State Drive (SSD)

What does RAM stand for, and what is its purpose?

• Random Access Module

• Read Access Memory

• Rapid Access Memory

• Random Access Memory

List two electrical safety precautions when working with devices.

• Leave devices plugged in while working.

• 1) Disconnect power before servicing. 2) Use insulated tools.

• Use wet hands when handling devices.

• Wear metal jewelry while servicing.

What is the purpose of a power supply unit in a computer?

• To cool down the computer's components.

• To store data permanently in the computer.

• To manage the computer's software applications.

• The purpose of a power supply unit in a computer is to convert and supply electrical power to the computer's components.

What is the difference between a motherboard and a hard drive?

• The motherboard is a type of software; the hard drive is a hardware component.

• The motherboard is used for data storage; the hard drive connects components.

• The motherboard powers the computer; the hard drive manages the operating system.

• The motherboard connects and manages computer components; the hard drive stores data.

Why is it important to ground yourself before working on electrical equipment?

• Grounding helps in reducing noise in electrical circuits.

• It is important to ground yourself to improve equipment performance.

• Grounding is necessary for better signal transmission.

• It is important to ground yourself to prevent electric shock when working on electrical equipment.

What is the role of a resistor in an electrical circuit?

• A resistor acts as a power source in an electrical circuit.

• A resistor stores electrical energy for later use.

• A resistor limits current and controls voltage in an electrical circuit.

• A resistor increases current flow in a circuit.

Name a common material used for electrical insulation.

• Wood

• Glass

• Plastic

• Rubber

What should you do if you see smoke coming from an electrical device?

• Open the device to investigate the smoke.

• Ignore it and continue using the device.

• Unplug the device and call emergency services if necessary.

• Pour water on the device to cool it down.