ATT Comp Test Questions and Answers 100%
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What is electrical Shock? - ANSWER A sensation and muscular
spasm when electric current passes through the body.
What is a GFCI? - ANSWER Ground Fault Circuit Interrupter
(automatically shut's off electrical flow in the event of an
overload)
TS Transformers - ANSWER Open: T doesn't generate output V
Short: could be partial which would then change number of
coils so Ep would change or Es
What is voltage - ANSWER Potential of electric energy; pressure
of electrons pushing away from each other.
Current is defined as __________________________. -
ANSWER a flow of electric charge
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What are some factors affecting shock? - ANSWER Amount of
current, path of current, amount of body resistance, and length
of time current flows in body
What is not a primary factor in severity of an electric shock? -
ANSWER The general health of the victim.
Ways to prevent shock? - ANSWER Isolate, insulate & ground
What is the minimum AC current required to cause severe
muscle contractions? - ANSWER 12 mA
How much more DC is required to freeze the body than AC? -
ANSWER 5 times more
What types of burns are there? - ANSWER Electrical burns, arc
burns, and thermal contact burns
Electrical burns are what? - ANSWER Electrical current flowing
through tissue or bones
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Arc burns are what? - ANSWER Electrical current flowing
through tissue or bones
Thermal contact burns are what? - ANSWER When skin comes
in contact with hot surfaces of overheated electrical conductors
Factors of electrical accidents - ANSWER Unsafe equipment,
unsafe environment, and unsafe work practices
What should you do first if someone has been shocked? -
ANSWER Remove the victim from the source.
What type of protection is worn when use of a tool produces
sparks and debris? - ANSWER Safety goggles.
What category includes electrical fires? - ANSWER Class C.
Switches have __________ resistance when closed, and
____________ resistance when open. - ANSWER minimum,
maximum