CSS 9 Summative Test

While working in the computer lab, your teacher reminds everyone to avoid touching electrical wires with wet hands. What safety rule does this follow?

• Proper documentation

• OSH Electrical Safety

• Software update rule

• Cable management rule

Which type of computer is commonly used at home and schools for tasks like word processing and browsing?

• Supercomputer

• Mainframe

• Personal Computer

• Server

Your school laboratory uses computers for word processing, research, and basic applications. What type of computer is commonly used?

• Supercomputer

• Mainframe

• Personal Computer (PC)

• Tablet

Which tool is used to tighten or loosen screws when assembling a computer?

• Multimeter

• Screwdriver

• Pliers

• Brush

Which of the following is a maintenance tool used to clean dust from inside the computer?

• Paint brush

• Air blower

• Needle-nose pliers

• Hammer

Which component provides electrical power to all parts of the computer?

• Motherboard

• Power Supply Unit (PSU)

• Hard Drive

• Processor

Which unit of measurement is LARGER?

• Megabyte (MB)

• Kilobyte (KB)

• Byte

• Bit

How many kilobytes (KB) are in 1 megabyte (MB)?

• 100 KB

• 512 KB

• 1,024 KB

• 10,000 KB

Why is it important to consider the budget when planning to build a personal PC?

• To make sure the PC has enough ports

• To balance between needs and affordability

• To avoid cleaning the PC often

• To make the PC smaller in size

A technician uses an air blower to clean a CPU instead of a damp cloth. Why is this the correct choice?

• It looks more professional

• It avoids damaging components with moisture

• It is faster than a cloth

• It makes the CPU shiny