2.1.8 Practice Questions

Keep the relative humidity in the room at an ideal range of

35-70%

Keep the relative humidity in the room at an ideal range of 35-70%, and temperature between

72-77 degrees.

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.)

Anti-static mat Metal area on the computer case

Which of the following are safe methods of lifting heavy objects? (Select TWO.)

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

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?

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?

Download them from the chemical manufacturer's websites.

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?

ESD wrist strap EXPLANATION Walking across a room, especially on carpet, will generate static electricity on your person. Discharging this electricity to a computer component may damage that component. Under these circumstances, it is best to use an electrostatic discharge (ESD) wrist strap to ensure proper grounding.

What is your top priority when responding to emergencies and hazardous situations?

Ensure the safety of people in the area.

A technician works in a factory where there is a 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?

Fiber optic EXPLANATION Fiber optic cabling is totally immune to EMI and provides the highest level of EMI protection.

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?

Find a different outlet that uses three prongs.

Of the following choices, which action could be most physically harmful to you?

Looking into the end of a fiber optic cable. EXPLANATION Never look into a fiber optic cable or any other possible source of laser light. Laser light can damage your eyes and even cause blindness.

Which of the following components requires special disposal procedures to comply with environmental guidelines?

Notebook battery

Which of the following will help reduce the threat of static discharge when working on computer hardware? (Select TWO.)

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

The fan in a 450-Watt power supply is malfunctioning. What action should you take?

Remove and replace the power supply. EXPLANATION Dangerous voltages can remain inside power supplies, even when they are unplugged. Do not attempt any repairs on a power supply except completely replacing the power supply unit.

You work for a large company that has over 1000 computers. Each of these computes 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?

They can be thrown in the trash. EXPLANATION Alkaline batteries manufactured after 1996 are made of relatively non-hazardous materials and can be tossed directly into the trash, in most states.

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?

They must be recycled. EXPLANATION Laptop batteries contain hazardous materials such as mercury, cadmium, and lead. These toxic substances harm the environment. If thrown away, they can enter the food chain, adversely affecting plants, animals, and humans. Therefore, these batteries must be recycled or given to a hazardous waste facility.

Ground both yourself and the computer to the same ground

This provides a single path for the flow of electrical potential.

What is the purpose of an MSDS?

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

Store sensitive components in static shielding bags, which are usually

grey.

If a wrist strap is unavailable,

keep your body in constant contact with the metal frame when working inside the computer.

Static-resistant bags are not nearly as effective. They are usually tinted

pink or blue.