Can You Answer All of These Questions an Electrician Should Know?

By: Kale Havervold
Estimated Completion Time
4 min
Can You Answer All of These Questions an Electrician Should Know?
Image: fstop123/E+/Getty Images

About This Quiz

Becoming an electrician is a popular way to make a living in the USA and the rest of the world. This is because you not only get to work out in the field, but the pay is also quite attractive as well. But unlike other jobs where you can just get hired off of the streets, becoming an electrician involves a few more steps than that. 

You need to go to school for it, and then prove your education level by taking an exam in order to become licensed or certified. This is because you are dealing with electricity, which can be very harmful or even deadly if you're not careful. These exams tend to cover everything from wiring methods to electrical knowledge to theory, and even safety measures and precautions. 

As a result, electricians must be knowledgeable in a wide range of different areas in order to pass these exams and officially get licensed. Being an electrician can sometimes put you in potentially harmful situations, so knowing your stuff and how to handle a variety of different challenges is of the utmost importance. If not, you or someone you work with could end up getting seriously hurt. 

Do you think you have the knowledge to pass a quiz on knowledge every electrician should know? If so, read on and get ready to challenge yourself. 

Which piece of jewelry is OK to wear while doing electrical work?
Rings
Necklaces
Watches
None of the above
When doing electrical work of any kind, it's a good idea to just avoid wearing any sorts of jewelry at all. While you might be safe, there is also a chance that electricity could arc and hurt you.

Advertisement

What is the most commonly used material for electrical wiring?
Copper
The most commonly used material in electrical wiring is copper. It is used because it is low-cost, widely abundant and the fact that it's a great conductor. Other materials sometimes used include gold and aluminum.
Plastic
Steel
Glass

Advertisement

When you are doing electrical work on a device, what is the first thing you need to do?
Get to the battery
Ensure it is powered off
Before doing any sort of electrical work on a device or anything, you need to make sure it is powered off. If not, you could potentially shock yourself or fry the device while working on it.
Check the wires of the device
Clean the device

Advertisement

Why do electrical overloads occur?
Having lights on for more than 4 hours
Power outages
Low-quality outlets
Too many things plugged in or being used at once
Seemingly everyone has blown their breaker or had an electrical overload at one time or another. These are often caused by too many devices or other things plugged into a circuit and being used at once.

Advertisement

When dealing with electricity, what material do you want on the soles of your shoes?
Leather
Plastic
Polyurethane
Rubber
When it comes to insulating yourself and protecting yourself from shocks, rubber-soled shoes work the best. Rubber will not conduct electricity, so wearing shoes with rubber soles will not allow electricity to pass through you to the ground.

Advertisement

Where are bathrooms in the USA required to have an outlet?
In the baseboards
Behind the toilet
Beside the towel rack
Within three feet of the sink
That's right, U.S rules and regulations require homes to have an outlet within three feet of the edge of the sink. This is to ensure no cords need to hang over the sink, as this could lead to shock or damage.

Advertisement

You have been severely shocked. What should you do once you are a safe distance from where it occurred?
Call or see a doctor ASAP
While you might feel fine after a larger shock, that doesn't mean that everything is fine. Some internal injuries can be very difficult to detect early, so it is better to be safe and visit the doctor to make sure you're OK.
Go lay under some warm blankets
Do nothing
Drink a lot of water

Advertisement

How frequently should an electrician check extension cords they use?
Once a year
Every day before you start using it
Extension cords can be a huge help for electricians and a wide range of other people as well. However, these should be checked frequently, at least once a day. Frayed wires or other issues can lead to these cords being real hazards.
Once a week
Every few months

Advertisement

When talking about electricity, what is the point of grounding?
To lower the amps of a particular device
To close a circuit
To provide a pathway for electricity to reach the ground
Electricity will always take the quickest pathway to the ground. Unfortunately, many times, the simplest and quickest pathway is through a person. Grounding is when you create a simpler pathway for electricity to travel, which reduces the likelihood of shocks occurring.
To maintain a steady electrical current

Advertisement

How many types of electrical currents are there?
8
2
There are two types of electrical current: alternating current (AC) and direct current (DC). AC is the power that comes from the wall, as it is always switching directions. DC comes from things like batteries, as the electricity only flows one way.
4
12

Advertisement

What should every electrician assume about a device before they begin to work on it?
That is put together correctly
That it isn't working
That it is live and powered-on
Before any electrician begins to work on or touch a device, they should assume it is live. This will already put them in a cautious state of mind, which can reduce the chance of an accidental shock.
That it is already turned off

Advertisement

A cold room has what sort of electrical risk?
Wires that are frozen
The possibility of condensation
Condensation can form in a cold room and this can lead to an increase in moisture within the room. While sometimes fine, this could also lead to an increase in the risk of a shock occurring.
Cold hands aren't as precise.
Circuits aren't as stable in cold weather.

Advertisement

What piece of equipment must be in every bedroom and on every floor in U.S homes?
Sprinklers
Smoke detectors
A smoke detector is one of the best safety features a home can have. As a result, it is required that all U.S homes have one in every bedroom and at least one on every floor.
A ceiling light
A window

Advertisement

Which material is best for an electrician's ladder?
Wood
Aluminum
Plastic
Fiberglass
While technically any ladder can be used by electricians, it should be ideally made of fiberglass. A wooden ladder can deteriorate, plastic ladders are low quality and aluminum ladders can conduct electricity.

Advertisement

What unit are electrical currents measured in?
Joules
Ghz
Amperes
Amperes, or amps, is the unit that electrical current is measured in. This unit got its name from the French scientist responsible for inventing the solenoid who is a founder of electrodynamics.
Watts

Advertisement

What is the "Let Go" threshold?
The amount of electricity before reflexes make you let go
How much electricity humans can let go through their body
The current it takes you to lose control of your body
The current level where your muscles will contract and prevent you from letting go
The "Let Go" threshold refers to the amount of electricity that will cause your muscles to contract. As a result, you will be unable to let go of the thing that is shocking you, which can lead to more damage and shocks. This is often anywhere between 6 and 30 milliamperes.

Advertisement

How many types of basic electricity exist?
One
Two
In general, there are two different types of electricity. There is static electricity and dynamic (or current) electricity. Static is the buildup of charge on a surface, and dynamic is which is the flow of electricity across a conductor.
Three
Four

Advertisement

How much working space is required in front of an electrical panel?
100 inches
There is no minimum.
30 inches
In order for any work to be done on an electrical panel, there should be 30 inches of clear space in the front. This will help minimize risk by preventing the space from being overcrowded with people or items.
75 inches

Advertisement

What is the source of most electricity in the USA?
Hydropower
Wind turbines
Nuclear energy
Fossil fuels
Fossil fuels are still responsible for the large majority of electricity in the USA. In fact, coal and natural gas alone are responsible for over 60% of electricity in the country. Next is nuclear at nearly 20%, and then renewable sources with about 17%.

Advertisement

What is the first thing to do if someone is being electrocuted?
Move them from the power source.
Turn off the power source
While helping them up or calling 911 might seem like the right thing to do, the first thing you need to do is turn off the power source. This will not only stop them from being shocked, but also prevent others from getting shocked as well.
Call 911 for help.
Tell your boss or someone else around.

Advertisement

What is the Megger test used to measure?
Voltage
The quality of a power outlet
Insulation resistance
The Megger test is used to test and measure insulation resistance. It helps to verify the condition and quality of electrical insulation. It is small and portable, and can also give you simple and direct readings.
If a circuit is overloaded or not.

Advertisement

How many paths does a current have in a series circuit?
One
A series circuit is a circuit in which there is only one pathway that a current can take. This is because resistors are engaged in a chain, and the current is same through each and every resistor.
Two
Three
Four

Advertisement

Are electrician fatalities on the rise or declining?
On the rise
Declining
While being an electrician is still a dangerous job, the numbers of people suffering fatal injuries in the industry are thankfully dropping. This could be to a higher emphasis on safety, better training or a wide range of other things.
Staying the same
Not enough data to analyze

Advertisement

The area you are working in is damp. What should you do to minimize the risk of shock?
Dry the area with a heater.
Do not work in a damp area.
Just be a little more careful.
Utilize ground fault circuit interrupters.
If you are working in a wet or damp environment, the chance of an electric shock occurring increases by a large margin. As a result, you should use a ground fault circuit interrupter. These will stop a circuit before a shock can take place.

Advertisement

How much electricity does the average American household use annually?
10,000 kWh
While the numbers will vary from home to home, the average American residential property will use about 10,000 kWh of power each year. A common reason for higher usage includes leaving lights or TV on all day when they don't need to be on.
100 kWh
400,000 kWh
1,000,000 kWh

Advertisement

What is Lockout/Tagout?
A standard security procedure
Lockout/Tagout refers to a safety procedure to ensure dangerous machines are locked and shut off when being worked on. The machine should also be tagged or labeled to ensure people don't turn it back on.
When a device is locked and won't open
When numerous workers are working on the same device
When multiple devices are suffering from the same issue

Advertisement

Which classification of fire is an electrical fire in the USA?
Class A
Class B
Class C
In the USA, there are 5 different classifications of fire. Class C refers to energized electrical equipment fires stemming from fuse boxes, circuit breakers and other machinery. In Europe, however, electrical fires are Class E.
Class D

Advertisement

Who is more likely to suffer from fatal electrical injuries?
35-44 years old
45+ years old
25-34 years old
Younger than 24 years old
While every age group has some risk associated with being an electrician, younger and more inexperienced workers have a higher chance of being injured on the job. For example, workers aged 18 or 19 have a 2.4 times greater chance of suffering a fatal injury than the average.

Advertisement

Which of these inventions was Thomas Edison not responsible for?
The AC motor
Nikola Tesla was actually the person who invented the AC motor. However, Edison is still one of the greatest inventors of all time, as he is credited with creating the motion picture camera, the phonograph and the first practical and long-lasting light bulb.
Phonograph
A practical electric lightbulb
Motion picture camera

Advertisement

When was the first NEC published?
1850
1897
The NEC (National Electrical Code) was first published back in 1897 and is published every three years. It is the standard for the safe installation of electrical wiring and equipment in the USA.
2000
1944

Advertisement

How often should safety gloves be tested electrically?
They don't need to be tested.
Every 6 months
Every 6 months, your safety gloves should be tested to ensure they can still protect you from electrical shocks. Sometimes, holes or other glove damage won't be visible to you, but could compromise the effectiveness of the gloves.
Once a year
Every month

Advertisement

When was the ESFI founded?
1982
1899
2009
1994
The ESFI (Electrical Safety Foundation International) is a nonprofit organization all about promoting electrical safety at home and in the workplace. It was originally founded back in 1994.

Advertisement

In 2017, what percentage of fatal electrician injuries occurred in the construction industry?
54%
While there are many different places where electric work is done, the construction industry is where most of the fatalities unfortunately occur. 54% of all fatalities occurred within that industry.
75%
28%
7%

Advertisement

How large of a current is likely to become lethal?
10 milliamperes
1 million milliamperes
600 milliamperes
10,000 milliamperes
While you will normally feel pain around 30 milliamperes, our bodies are capable of handling a lot more than that. A milliampere level of 10,000 or more is often what it will take for serious injury and death.

Advertisement

Which color should not be used for a grounded conductor?
White
Black
Green
The grounded conductor, also known as the neutral conductor, cannot be green. Green is the color used for a grounding conductor, which is much different from the grounded variety.
Grey

Advertisement

You Got:
/35
Featured