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ATT Comp Test (FC) - Questions & Complete Solutions
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ATT Comp Test (FC) - Questions & Complete Solutions
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ATT Comp Test (FC) - Questions & Complete SolutionsWhat is electrical Shock? Right Ans - A sensation and muscular spasm
when electric current passes through the body.
What is a GFCI? Right Ans - Ground Fault Circuit Interrupter (automatically
shut's off electrical flow in the event of an overload)
TS Transformers Right Ans - 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 Right Ans - Potential of electric energy; pressure of
electrons pushing away from each other.
Current is defined as __________________________. Right Ans - a flow of electric
charge
What are some factors affecting shock? Right Ans - 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? Right Ans -
The general health of the victim.
Ways to prevent shock? Right Ans - Isolate, insulate & ground
What is the minimum AC current required to cause severe muscle
contractions? Right Ans - 12 mA
How much more DC is required to freeze the body than AC? Right Ans - 5
times more
What types of burns are there? Right Ans - Electrical burns, arc burns, and
thermal contact burns
Electrical burns are what? Right Ans - Electrical current flowing through
tissue or bones
, Arc burns are what? Right Ans - Electrical current flowing through tissue
or bones
Thermal contact burns are what? Right Ans - When skin comes in contact
with hot surfaces of overheated electrical conductors
Factors of electrical accidents Right Ans - Unsafe equipment, unsafe
environment, and unsafe work practices
What should you do first if someone has been shocked? Right Ans -
Remove the victim from the source.
What type of protection is worn when use of a tool produces sparks and
debris? Right Ans - Safety goggles.
What category includes electrical fires? Right Ans - Class C.
Switches have __________ resistance when closed, and ____________ resistance
when open. Right Ans - minimum, maximum
Type of switches Right Ans - Toggle, slide, rotary, and push button. Single
or double pole and throw.
Fuses and circuit breakers are both protection devices, however, while fuses
are not ____________, circuit breakers are. Right Ans - reusable
Are capacitors circuit protection devices? Right Ans - No.
A _______ ________ fuse will typically blow in about one second, while a ________
________ could take 1-30 seconds. Right Ans - Fast acting; slow blow
What happens to the current path if the wire in a fuse melts? Right Ans - It
stops.
What do the following letters mean in a basic schematic diagram? C, D, Q, S, T,
TP, AVC Right Ans - C - Capacitor, D - Diode, Q - Transmitter, S - Switch, T-
Transformer, TP - Test Point, AVC - Automatic Volume Control
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