How Shocking
How many deaths and injuries in the U.S. every that are caused by electrical accidents at work?
What is 300 deaths and 4,000 injuries?
Why would an electric drill have a three-prong plug?
What is three prongs provide for the electric tool to be grounded.
What is meant by a “closed” breaker as compared to an “open” breaker?
What is a closed breaker is “on” “energized” an open breaker is “off” “de-energized.” ?
What electrical wire size is larger in diameter, AWG 14 or AWG 12?
What is AWG 12
How often should insulated rubber gloves used for testing live circuits be checked for cuts and holes?
What is They should be checked before every use for cuts and holes.
How do electrical accidents rank among all causes of work-related deaths.
What is sixth?
What is meant by the term grounded in an electrical circuit?
What is the ground provides an easier path for the electricity to take rather than through your body?
How can you determine if a circuit breaker has tripped and how do you reset it?
If the breaker is tripped, it is positioned in the middle and is not in the "off" or "on" position.
What is to reset a breaker you will need to push it into the "off" position and you should hear a slight "click" and then push it back into the "on" position and you will again hear it "click" as it snaps closed.
Why is consideration of electrical wire size important when wiring an electrical circuit?
What is using a wire that is too small in diameter can lead to overheating and potentially fire.
What are the four steps to take when testing a circuit for voltage?
What is Make sure the circuit is “OFF” and properly locked-out and tagged-out.
Test the meter on aknown voltage source.
Test the circuit that should be de-energized (off).
Test the meter again on a known source to ensure that you didn’t damage your meter or blow afuse and get a “0” volt reading accidentally in step 3.
Is it true that a low voltage system cannot harm you?
What is No?
How does a GFCI breaker provide for electrical safety?
What is a GFCI can interrupt the flow of electricity in as little as 1/40 of a second to prevent electrocution. They compare the amount of current going into the electric device with the amount of current returning from it and if the difference exceeds 5 milliamperes, the device automatically shuts down?
What steps should you take before resetting a circuit breaker?
What is if you try to reset the breaker and the fault has not been corrected, it will trip again. An over current condition can lead to equipment damage and even fire. Determine why the breaker tripped and correct the condition before resetting the breaker.
What type of information can be determined from the markings found on electrical cable?
What is the markings include information on the wire size, cable type, voltage rating, number of conductors, and whether a ground wire is included.
Who can remove a lock from an electrical circuit that has been locked and tagged?
The person that locked and tagged the circuit.
What is the number one injury that is caused by being electrocuted?
What is burns?
How would you help a person who is “frozen” and unable to pull free of the circuit?
What is locate the power source and shut off the current immediately. If this is not possible, try to usesomething non-conducting such as a wooden broom handle and try to safely push the person away from the contact.
Why should you never replace a fuse or a breaker with one that has a higher amperage rating?
What is if the breaker or fuse is sized too large then it will not provide for the safety of the circuit
On what type of applications would Class 1 remote-control circuits be found?
What is class 1 remote-control circuits are commonly used in motor controllers, elevators, conveyors, and in equipment controlled from one or more remote locations.
Name 3 forms of PPE you can wear when working with electricity on the job.
•Insulated rubber gloves
•Flame-Resistant Clothing
•Safety Glasses
•Face Shields
•Hard Hats
•Hearing protection
•Boots
Arc Flash Suits
How can electrical shock occur?
What is electrical Shock will occur when a person’s body completes the current path with both wires of an electric circuit such as one wire of an energized circuit and the ground.
What types of PPE can you use to limit injury from working with live circuts.
What is insulated rubber glove and boots
Explain what is meant by a fuse instantaneous current rating.
What is this is the maximum instantaneous current that the device can physically withstand without damage, such a rupturing, electric arcing, or even exploding.
Why is Class 2 wiring not required to be routed through conduit or raceways?
What is If a nail or a screw is accidently driven through the wires and creates a short, the transformer will not deliver enough energy to cause the wires to heat up, which could lead to a fire.
How many amps does it take to cause a fatality
What is as little as 0.2amps