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