CompTIA A+ Cert Study Guide

You do not know the proper handling of an old solvent previously used in your company, and now you need to discard it. How can you find out more about it? A. Contact the manufacturer and ask for an MSDS. B. Send it to a recycling center. C. Transfer it to a glass jar for safe storage. D. Call 911.

A. Contact the manufacturer and ask for an MSDS because this document will contain instructions on safe handling and safe disposal of the chemical.

Which statement is not true about ESD? A. ESD can kill a human. B. As little as 30 volts of ESD can damage a device. C. You can damage equipment via ESD without feeling any electrical shock yourself. D. Low humidity makes ESD more likely.

A. ESD may be high voltage, but due to the low amperage, it cannot kill a person, although it can startle.

Which of these is a metal that a battery might contain, requiring special disposition of it? A. Lithium B. Helium C. Hydrogen D. Calcium

A. Lithium batteries are common in mobile devices, and lithium requires recycling, not disposal in the regular trash.

What should you do before moving any computer equipment? A. Power down and disconnect the power cord. B. Wear work gloves. C. Put on a facemask. D. Remove the power supply.

A. Power down and disconnect the power cord before moving any computer equipment.

When cleaning dirty items with compressed air, what safety equipment should you wear? A. Mouth/nose mask and gloves B. Mouth/nose mask and goggles C. An apron or protective jacket D. Steel-toed shoes

B. A mouth/nose mask will keep you from breathing any debris or dust, and goggles will keep debris out of your eyes.

When should you wear an air filter mask and goggles? A. When changing a toner cartridge B. When using compressed air to clean dust out of a PC case C. When installing RAM D. When disassembling a monitor

B. Compressed air is likely to stir up dust and other debris that could get in your eyes and lungs. Protect yourself with a mask and goggles.

What should you do with a large number of used batteries accumulated in your office? A. Dispose of them in the trash. B. Find a recycling center that will accept them. C. Send them back to the manufacturers. D. Let them accumulate and dispose of them about once a year.

B. Find a recycling center that will accept batteries.

What is it about a circuit board that makes it subject to special disposal procedures? A. Plastic B. Lead C. Aluminum D. Steel

B. Lead is a soft metal that is used in the solder points on a circuit board. Lead can leach into soil in a landfill, unlike harder metals.

A client has a large CRT. It is malfunctioning, and none of the external buttons on the monitor help, nor can you fix it using the Properties settings in Windows. Although the monitor is quite old, the client likes it, and wants it to be repaired if possible. What should you do? A. Open the CRT case and visually inspect for a loose connection. B. Take it to a qualified repair center. C. Tell the client the monitor is beyond repair and immediately discard it. D. Find a service manual for it online and try to repair it yourself.

B. Take it to a qualified repair center.

You plan to replace the power supply in a computer. What is the most important safety measure you should take to protect yourself? A. Wear an antistatic wristband. B. Do not ground yourself. B. Bend your knees when you lift it. C. Buy a name-brand power supply.

B. The most important safety measure you should take to protect yourself is to not ground yourself, because you do not want to make your body a path for electricity to take to ground. Wearing an antistatic wristband, standing on a grounding mat, or touching something already grounded would do this and put you in danger.

What can you use to protect a PC from power sags? A. Surge suppressor B. Power supply C. UPS D. APS

C. A UPS will protect a PC from power sags because it provides conditioned power, free from the surges, spikes, and sags coming from the power company.

What is the best way to recycle a cell phone? A. Hazardous waste collection facility B. Put in the regular trash C. Buy-back program D. Burn it

C. A buy-back program is the best option because it will pay you for the phone.

Which of the following is the correct fire extinguisher class for an electrical fire? A. A B. B C. C D. D

C. Class C is the correct fire extinguisher class for an electrical fire.

You are getting ready to install a new component, a memory stick that came in its own antistatic bag. What is the correct way to handle this component and the bag? A. Remove the component from the bag and place it on top of the bag until ready to install. B. Remove the component from the bag and immediately discard the bag. C. Leave the component in the bag until you are ready to install it. D. Remove the component from the bag and turn the bag inside out before placing the component on the bag.

C. Leave the component in the bag until you are ready to install it.

When a computer system is no longer functioning and is not repairable, how should you dispose of it? A. Put it in the trash. B. Donate it to a charity. C. Send it to a recycling center. D. Send it to a landfill.

C. Send it to a recycling center. Even a nonfunctioning computer has material in it that can and should be recycled.

Which of these is not good advice for safe lifting and moving? A. Carry the item close to your body. B. Bend your knees. C. Use a fast, jerking movement to pick up a heavy object. D. Keep your back straight and vertical to the floor.

C. You should lift with a slow, smooth movement, not fast and jerking.

Which of the following protects against blackouts? A. Power strip B. Surge suppressor C. Inverter D. UPS

D. A UPS is an online power protection device.

What is the ideal environment for ESD to occur? A. Hot and humid B. Cold and humid C. Hot and dry D. Cold and dry

D. Cold and dry is the ideal environment for ESD to occur. This should be avoided because ESD can damage equipment.

In what way could compressed air harm a human body? A. Alkaline burns B. Acid burns C. Heat burns D. Freeze burns

D. Compressed air gets very cold when released and could cause a freeze burn.

What unit of measurement describes a surge suppressor's ability to protect from power surges? A. VA B. Watts C. ULs D. Joules

D. Joules describes the protection level provided by a surge suppressor.