Chapt 21 Flashcards
which component inside the computer case poses the biggest risk for
electrocution?
power supply
class ____ fire extinguishers are for flammable liquid fires.
class B
class ___ fire extinguishers are for fires involving flammable metals.
class D
to discharge electricity from a monitor use a(n) _____
high voltage probe
what is the name of the safety sheet supplied with all chemicals?
MSDS (material safety data sheet)
what are the three common types of screws used in computers?
phillips, flat head (straight-slot), torx
computer components can be damaged with a shock of ___ volts
300
in order to see an electrical discharge, the transfer of electricity must be of ____ volts or more
10,000
what device uses a one megaohm resistor to bleed charge away slowly from your body?
ESD strap = astistatic wrist strap
to whom must accidents in the workplace be immediately reported?
employer
which organization is responsible for ensuring safe work environments in the US private sector?
OSHA (occupational safety and health administration)
human beings can detect electrical shocks of ____ volts or more.
3,000
computer parts can be carried in what to reduce the chance of
electrical damage?
anti static bags
providing properly maintained tools and equipment is whose
responsibility in a safe work environment?
employer
when lifting computer equipment, always lift with your _____
legs
class ______ fire extinguishers are for electrical fires
class C
electrical contacts should be cleaned with what?
isopropyl alcohol
monitors should be _____ according to proper disposal procedures.
recycled
you should ____ batteries to dispose of them properly
recycle
which is the most likely type of injury from attempting to fix a laser printer?
burns
software that is ____ does not need a license, and the code can be modified by users.
open source
the type of software license used in corporate or university
environments for many users is called what?
corporate, campus, and site (or enterprise)
what type of software license would an individual user purchase for their own use?
personal
software that is purchased and requires a license to run is called?
commercial
You have dropped a screw into a tight location of a computer. How should you retrieve it?
A) Use a magnetic‐tipped screwdriver.
B) Use a magnetic grabber.
C) Use a three‐pronged grabber.
D) Shake the computer until it falls out.
Use a three‐pronged grabber.
C. A three‐pronged grabber should be used to retrieve the screw from the computer. Using a magnetic‐tipped screwdriver is not advisable, because many components are sensitive to magnets. Using a magnetic grabber is not advisable, because many components are sensitive to magnets. Shaking the computer until it falls out can be dangerous and make the screw harder to get out.
You have a failed CRT monitor that you must dispose of safely. Which of the following is used to discharge voltage properly from the unplugged computer monitor?
A) Antistatic wrist strap
B) Screwdriver
C) High‐voltage probe
D) Power cord
High‐voltage probe
C. A high‐voltage probe can dissipate the high voltage stored in a CRT. An antistatic wrist strap should not be worn near a high‐voltage potential such as a CRT monitor. A screwdriver can dangerously arc the voltage and is not the proper way to discharge the unit. A power cord supplies power to a CRT monitor.
One of your coworkers just spilled a chemical solvent in a warehouse, and you have been asked to help clean it up. Which of the following must contain information about a chemical solvent’s emergency cleanup procedures?
A) OSHA
B) MSDS
C) Product label
D) CRT
MSDS
B. The material safety data sheet (MSDS) will have the necessary information about the cleanup procedures. The Occupational Safety and Health Administration (OSHA) is an organization that oversees safety in the workplace. The product label may or may not have this information. A cathode‐ray tube (CRT) is a type of monitor that uses a glass tube.
You are purchasing an inkjet printer cartridge for home use that you know has an MSDS. How do you obtain the MSDS for this product?
A) The store is required to give you one at the time of purchase.
B) It’s contained in the packaging of the printer cartridge.
C) You are not legally allowed to have an MSDS for this product.
D) You should visit the printer cartridge manufacturer’s website.
manufacturer’s website
D. You can download the MSDS by visiting the printer cartridge manufacturer’s website. The store is not required to furnish an MSDS at the time of purchase. The manufacturer is not required to furnish an MSDS with the packaging of the product. You are legally allowed to have an MSDS for products, as per OSHA. You should have them on hand in case of an emergency.
In the interest of a safe work environment, which of the following should you report? (Choose two.)
A) An accident
B) A near‐accident
C) Spills on the floor inside a building
D) Rain forecasted for a workday
An accident
Spills on the floor inside a building
A, C. An accident should always be reported so that if there is a hazardous condition, it can be fixed. Report hazardous conditions, such a spill on the floor, to the employer before they are a problem. A near‐accident does not need to be reported unless it is caused by a hazardous condition, like spills. Rain forecasted for a workday is not a hazardous condition.
What is the approximate minimum level of static charge for humans to feel a shock?
A) 300 volts
B) 3,000 volts
C) 30,000 volts
D) 300,000 volts
3,000 volts
B. You can feel an ESD shock of 3,000 volts or more. 300 volts is too low for a human to feel. A minimum of 30,000 volts can be felt by a human. 300,000 volts can be felt by humans and could be painful.
Your work environment has been unusually dry lately, and several components have been damaged by ESD. Your team has been asked to be extra careful about ESD damage. Which of the following measures can be implemented to reduce the risk of ESD? (Choose two.)
A) Use an antistatic wrist strap.
B) Use an antistatic bag.
C) Spray disinfectant spray.
D) Shuffle your feet.
Use an antistatic wrist strap.
Use an antistatic bag.
A, B. Using an antistatic wrist strap allows you to ground yourself to dissipate a static charge. Using antistatic bags allows for a uniform charge around a component. Spraying disinfectant spray will only kill germs, not reduce static. Shuffling your feet will build a charge of static.
Which of the following are OSHA requirements for a safe work environment that must be followed by employers? (Choose two.)
A) Attend yearly OSHA safe work environment seminars.
B) Provide properly maintained tools and equipment.
C) Have an OSHA employee stationed within 5 miles of the facility.
D) Display an OSHA poster in a prominent location.
Provide properly maintained tools and equipment.
Display an OSHA poster in a prominent location.
B, D. Providing properly maintained tools and equipment is a requirement for an OSHA‐compliant workplace. Displaying an OSHA poster in a prominent location is also a requirement for an OSHA‐compliant workplace. Attending yearly OSHA safe work environment seminars is not a requirement. Having an OSHA employee stationed within 5 miles of the facility is also not a requirement.
Your office just added 20 new workstations, and your manager has put you in charge of configuring them. The users need to have Microsoft Office installed. What should you do to install Microsoft Office properly on these computers?
A) Ensure that the company has the proper licenses to install 20 additional copies.
B) Agree with the open source license agreement during installation.
C) Use the personal license key from an existing system to install Office on the new computers.
D) Follow normal installation procedures; nothing else needs to be done.
Ensure that the company has the proper licenses to install 20 additional copies.
A. You should ensure that the company has the proper licenses to install 20 additional copies to be compliant with licensing. Microsoft Office is not an open source licensed product. Using the personal license key from an existing system violates the license agreement. Following normal installation procedures will not ensure compliance of licensing.
Your office is moving from one floor of a building to another, and you are part of the moving crew. When moving computer equipment, which of the following are good procedures to follow? (Choose two.)
A) Lift by bending over at the waist.
B) Carry CRT monitors with the glass face away from your body.
C) Use a cart for heavy objects.
D) Ensure that there are no safety hazards in your path.
Use a cart for heavy objects.
Ensure that there are no safety hazards in your path.
C, D. You should use a cart to move heavy objects. You should also ensure that no safety hazards are in your path. Lifting by bending over at the waist can hurt your back. Carrying CRT monitors with the glass facing outward is not safe, as the weight will be farthest from your body.
You just removed four AA alkaline batteries from a remote‐control device. What is the recommended way to dispose of these batteries?
A) Throw them in the trash.
B) Incinerate them.
C) Take them to a recycling center.
D) Flush them down the toilet.
recycling center.
C. Alkaline batteries should be taken to a recycling center. Throwing batteries in the trash is not environmentally responsible. Incinerating batteries is not advisable, since they can explode and will create pollution. Flushing batteries down the toilet is not an acceptable disposal method.
When replacing a hard drive, you discover prohibited material on a user’s laptop. What should you do first? (Choose two.)
A) Destroy the prohibited material.
B) Confiscate and preserve the prohibited material.
C) Confront the user about the material.
D) Report the prohibited material through the proper channels.
Confiscate and preserve the prohibited material.
Report the prohibited material through the proper channels.
B, D. The first step is to confiscate and preserve the prohibited materials on the drive. The next step is to report the prohibited materials through the proper channels. Destroying the prohibited material will not remedy the situation. Confronting the user about the material is not suggested, as they could become hostile.
You need to investigate how to protect credit card data on your network. Which information should you research?
A) PCI DSS
B) GDPR
C) PHI
D) PII
PCI DSS
A. You should research information on the Payment Card Industry Data Security Standard (PCI DSS). The General Data Protection Regulation (GDPR) is used for protecting EU citizens. Protected health information (PHI) is any data that defines a patient or an ailment of a patient. Personally identifiable information (PII) is any information that can be used to identify a person.
Which class of fire extinguisher is recommended for use in a wood and paper fire?
A
B
C
D
A. Wood and paper fires can be put out by a Class A fire extinguisher.
Class B fire extinguishers are used for flammable liquids.
Class C fire extinguishers are used for electrical files.
Class D fire extinguishers are used for flammable metals.
Which of the following are common types of screwdrivers? (Choose two.)
A) Circular
B) Phillips
C) Torx
D) Helix
Phillips and Torx
B, C. Phillips and Torx are two common types of screwdriver. Neither circular nor helix is a type of screwdriver.
Which of the following are elements of a good workplace safety plan? (Choose two.)
A) Periodic workplace inspections
B) A safety and health training program
C) Retribution for employees who report violations
D) An independent third‐party auditor of the safety plan
Periodic workplace inspections
A safety and health training program
A, B. Good safety plans protect the interests of the workers and also help to keep company costs down. Periodic workplace inspections and a training program are good components to implement. Employees cannot be punished in any way for reporting safety violations. Third‐party audits of safety programs are not necessary but can complement periodic inspections and safety and health training programs.
What is the recommended use policy on magnetic‐tipped screwdrivers inside computers?
A) Do not use them.
B) It’s okay to use them, but keep them away from the processor.
C) It’s okay to use them, but keep them away from the RAM.
D) It’s okay to use them, but only if they’re of the powered variety.
Do not use them.
A. A good rule of thumb when it comes to magnetic‐tipped screwdrivers is to avoid using them inside a computer case. Magnetic tools can damage data on disks that use a magnetic storage scheme. Magnetic‐tipped screwdrivers should not be used inside a computer even if they are kept away from the processor and the RAM. Regardless of whether they are powered or not, magnetic‐tipped screwdrivers should not be used inside computers.
Which of the following are usually contained on an MSDS? (Choose two.)
A) Freezing point
B) Handling and storage instructions
C) Personal protection instructions
D) Salinity levels
Handling and storage instructions
Personal protection instructions
B, C. Material safety data sheets (MSDSs) contain handling and storage instructions as well as personal protection instructions. MSDSs do not contain freezing point specifications or salinity levels.
Which of the following are OSHA requirements for a safe work environment that must be followed by employees? (Choose two.)
A) Immediately report all accidents to OSHA.
B) Use protective gear and equipment.
C) Attend safety training.
D) Follow all employer‐implemented health and safety rules.
Use protective gear and equipment.
Follow all employer‐implemented health and safety rules.
B, D. To maintain a safe work environment, all employees must follow certain protocols. These include using protective gear and equipment and following all health and safety rules. Accidents must be reported to the employer, not OSHA (unless action is not properly taken by the employer). There are no rules requiring safety training, although it is a good idea to have these sessions and for employees to attend them.
Which of the following types of batteries are not considered environmental hazards?
A) Alkaline
B) Nickel‐metal hydride (NiMH)
C) Nickel‐cadmium (NiCd)
D) Button cell
Nickel‐metal hydride (NiMH)
B. Nickel‐metal hydride (NiMH) batteries are not considered environmental hazards. Alkaline batteries used to contain mercury, which is an environmental hazard, so they are assumed to be environmental hazards. Nickel‐cadmium (NiCd) batteries and button cell batteries are considered environmental hazards.
