Questions and CORRECT Answers
What is electrical Shock? - CORRECT ANSWER- A sensation and muscular spasm when
electric current passes through the body.
What is a GFCI? - CORRECT ANSWER- Ground Fault Circuit Interrupter (automatically
shut's off electrical flow in the event of an overload)
TS Transformers - CORRECT 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 - CORRECT ANSWER- Potential of electric energy; pressure of electrons
pushing away from each other.
Current is defined as __________________________. - CORRECT ANSWER- a flow of
electric charge
What are some factors affecting shock? - CORRECT 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? - CORRECT ANSWER- The
general health of the victim.
Ways to prevent shock? - CORRECT ANSWER- Isolate, insulate & ground
What is the minimum AC current required to cause severe muscle contractions? - CORRECT
ANSWER- 12 mA
How much more DC is required to freeze the body than AC? - CORRECT ANSWER- 5
times more
, What types of burns are there? - CORRECT ANSWER- Electrical burns, arc burns, and
thermal contact burns
Electrical burns are what? - CORRECT ANSWER- Electrical current flowing through tissue
or bones
Arc burns are what? - CORRECT ANSWER- Electrical current flowing through tissue or
bones
Thermal contact burns are what? - CORRECT ANSWER- When skin comes in contact with
hot surfaces of overheated electrical conductors
Factors of electrical accidents - CORRECT ANSWER- Unsafe equipment, unsafe
environment, and unsafe work practices
What should you do first if someone has been shocked? - CORRECT ANSWER- Remove the
victim from the source.
What type of protection is worn when use of a tool produces sparks and debris? - CORRECT
ANSWER- Safety goggles.
What category includes electrical fires? - CORRECT ANSWER- Class C.
Switches have __________ resistance when closed, and ____________ resistance when
open. - CORRECT ANSWER- minimum, maximum
Type of switches - CORRECT ANSWER- 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. - CORRECT ANSWER- reusable
Are capacitors circuit protection devices? - CORRECT ANSWER- No.