Chapter 10 Review 1 – Flashcards
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A user's forearms should extend ____ to a keyboard.
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down slightly
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The height of a keyboard from the floor should normally be ____.
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26 to 28 inches
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The best location for a peripheral, such as a printer, that a user accesses frequently is ____.
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within arm's reach of the user in a normal working position
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The monitor connected to a computer system should be located so a user does not have to look ____.
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up slightly
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Designing computer systems and laying out workspaces to minimize health problems and maximize worker safety, productivity, and comfort is called ____.
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ergonomics
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One primary cause of eyestrain is a display screen that ____.
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reflects light
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The relationship between carpal tunnel syndrome and repetitive strain injuries is summarized by which of the following sentences?
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All carpal tunnel injuries are repetitive strain injuries.
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Which of these is an ergonomic device?
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a. Adjustable chair, b. Footrest, c. Document holder
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If a computer is plugged into a 15-amp circuit, the total amperage of all devices plugged into the circuit should be ____.
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less than 15 amps
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A device that regulates the electrical power on a circuit into which a computer will be connected is a(n) ____.
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power conditioner
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The number of hours when a computer system is unavailable for use due to a failure is called ____.
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downtime
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The purpose of a UPS backup battery is to permit a computer system to ____.
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shut down normally
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In a computer facility, a UPS is a(n) ____.
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uninterruptible power supply
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An uninterruptible power supply contains a ____.
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a. battery
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When an HVAC technician considers the air conditioning requirements for a computer facility, the technician calculates the ____.
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wattage
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A display screen should be positioned so that it ____.
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is at a 90-degree angle to the light source
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A light source that may flicker at the same rate as an older CRT display screen is a(n) ____ bulb.
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fluorescent
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Which of the following is least likely to cause a fire in a computer system?
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RAM memory
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The most effective fire extinguisher for computer equipment is ____.
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Halon gas or a substitute
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Fire extinguishers purchased for use around computer equipment should be rated for ____ fires.
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electrical
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A site management notebook is especially useful in which of these situations?
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Multiple systems installed in an office or training facility
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A tool used by computer installers to remove the case from a computer is a ____.
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nut driver
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A chemical used by support specialists to clean many computer components is ____.
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isopropyl alcohol
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Compared to other parts, the nuts and bolts in a computer system tend to be ____.
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small
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Which type of cleaner is generally not recommended for use on laptop display screens?
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Isopropyl alcohol
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An antistatic wrist strap is designed to ____.
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reduce the risk of damage to computer components
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Most operating systems are now distributed on ____.
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CDs or DVDs
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Which of these is not normally a network installation task on a new office PC?
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Back up network server media
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Utility software, such as virus checker, screen saver, and security software, is usually installed on a computer system immediately ____.
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after the operating system is installed
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Before a support specialist installs an application software package, he or she should ____.
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close all open programs
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Which of these application software installation options often requires the most disk space on a user's hard drive?
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Full
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Which of these application software installation options is likely to ask the most questions of the installer and require the greatest expertise?
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Custom
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Which of these application software installation options installs the most commonly used set of features and capabilities?
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Express
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Training opportunities are normally reviewed with a user during ____.
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an installation wrap-up
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Which of these is not a common physical access control used in computer facilities?
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Internet firewall
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A disaster management tool that can provide an organization with additional financial resources at the time an unforeseen event occurs is ____.
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business interruption insurance
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Dust buildup inside a computer case can be managed effectively by ____.
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vacuuming the inside of the case
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Recommended preventive maintenance for a computer printer often includes ____.
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vacuuming printer dust inside the case
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Dirt on computer keyboards can be cleaned with ____.
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isopropyl alcohol
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The biggest enemy of most printers is ____.
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printer paper dust
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Smudges on a laptop display screen can be cleaned periodically with ____.
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eyeglass cleaner
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