2.1 Protection and Safety

Peripheral Devices

A device that connects to a computer, such as a monitor or printer.

Capacitor

A device that stores an electric charge.

Material Safety Data Sheet (MSDS)

A document that contains safe handling and disposal processes for dangerous materials

Cathode Ray Tube (CRT)

A vacuum tube used to display images that is commonly used in computer monitors

Which of the following are safe methods of lifting heavy objects? (Select TWO) A. Bend your knees with your back straight B. Bend at the waist C. Use a lifting strap around the object and your neck. D. Pull up with your arms. E. Lift with your legs.

A. Bend your knees with your back straight. E. Lift with your legs

You work for a store that sells and repairs computers. Due to the room's layout, while repairing computers, you must walk from one side of the carpeted room to the other frequently. Which of the following would BEST protect you from static electricity buildup? A. ESD wrist strap B. Self-ground C. ESD mat D. ESD heel strap

A. ESD wrist strap

To prevent ESD when replacing internal computer components, you attach an anti-static wrist strap to your wrist. Where should the other end be fastened? (Select TWO) A. Metal area on the computer case B. Ground wire on the wall power outlet C. Screw on the wall power outlet D. Anti-static mat E. Ground wire on the power supply

A. Metal area on the computer case D. Anti-Static Mat

What is your top priority when responding to emergencies and hazardous situations? A. Prevent the release of hazardous elements into the atmosphere. B. Ensure the safety of people in the area. C. Reduce the risk and exposure to litigation D. Protect your organization's data.

B. Ensure the safety of people in the area.

A technician works in a factory where there is significant amount of EMI (Electromagnetic interference) emissions. Due to this EMI, several of the computers that control the factory's manufacturing machines are unable to communicate with the network. Which of the following network cabling options would be the BEST for reestablishing network communications? A. Coaxial B. Fiber Optic C. Cat 5e D. Cat 7

B. Fiber Optic

The fan in a 450-Watt power supply is malfunctioning. What action should you take? A. Open the power supply and oil the fan. B. Remove and replace the power supply. C. Do not service the computer until the CPU fan also fails. D. Open the power supply and replace the defective fan unit.

B. Remove and replace the power supply.

What is the purpose of an MSDS? A. To protect service technicians from large voltages. B. To document how to safely handle and dispose of hazardous materials. C. To prevent dust form accumulating on electrical equipment. D. To monitor the potential for electrostatic discharge.

B. To document how to safely handle and dispose of hazardous materials.

Timothy works in the graphic arts departments and has received approval to upgrade his video card. The card has arrived, and you are ready to begin the upgrade. To ensure your personal safety, which of the following should you do FIRST? A. Place the computer on an ESD mat. B. Remove jewelry C. Disconnect power. D. Put on safety glasses

C. Disconnect power.

To improve the safety of your location and to comply with regulations regarding work environments with hazardous materials, you have been assigned to assemble Material Safety Data Sheets (MSDS) for all chemicals used in your shop. How should you obtain these documents? A. Get them from your local workers' safety insurance office. B. Ask your manager for them. C. Download them from the chemical manufacturer's websites. D. Write them yourself after researching the issues.

C. Download them from the chemical manufacturer's websites.

Your U.S.-based company has recently purchased an old office building where employees are being assigned to work. As you are setting up the employees' desktop computers, you come to one location where the nearest wall outlet has only two prongs. All of the metal-enclosed desktop computers have three-prong cords. Which of the following is the BEST way to proceed with that particular desktop computer? A. Use the existing cord, but remove the grounding prong, as it is not required. B. Purchase an adapter that converts the three-prong cable to two prongs. C. Find a different outlet that uses three prongs. D. Get a new power cord with two prongs to match the wall outlet.

C. Find a different outlet that uses three prongs.

Of the following choices, which action could be most physically harmful to you? A. Wearing a grounding strap while installing a modem. B. Force-ejecting a stuck DVD disc using a straightened paper clip. C. Looking into the end of a fiber optic cable. D. Using a computer without a surge protector.

C. Looking into the end of a fiber optic cable.

Which of the following components requires special disposal procedures to comply with environmental guidelines? A. Motherboard B. Video Card C. Notebook battery D. Hard disk drive

C. Notebook Battery

You work for a large company that has over 1000 computers. Each of these computers uses a wireless mouse and keyboard. Therefore, your company goes through a lot of alkaline batteries. When these batteries can no longer power the intended device, you must decide what to do with them. Unless otherwise dictated by your local authorities, which of the following would be the EASIEST way to deal with these batteries? A. They must be sent to hazardous waste collection. B. They must be stored onsite until they expire. C. They can be thrown in the trash. D. They can be recharged.

C. They can be thrown in the trash

Your company has a plan in place to upgrade each employee's laptop computer to a newer model every three years. As a result, you often have old laptop batteries. Unless otherwise dictated by your local authorities, which of the following is the BEST way to deal with these types of batteries? A. They can be thrown in the trash B. They can be recharged C. They must be recycled D. They must be stored on-site until they expire.

C. They must be recycled.

Which of the following will help reduce the threat of static discharge when working on computer hardware? (Select TWO). A. Touch the leads on the PC components with your finger to dissipate any static charge. B. Reduce the humidity in the room to around 30% C. Leave the system plugged into a grounded wall outlet. D. Remain in physical contact with the server chassis at all times. E. Store unused components in static shielding bags. F. Place your hardware on an insulating layer of 1/4 inch Styrofoam.

D. Remain in physical contact with the server chassis at all times. E. Store unused components in static shielding bags.

Electrostatic Discharge (ESD)

The flow of electricity from one electrically charged object to another.