Electrical Safety Qualified Employee Test

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Please read all questions fully before answering. For multiple-choice questions, there is only one answer; choose the best response. A grade of >80% is required to pass successfully. Each question is worth 3 points

What are the critical behaviors in shock prevention?

Power off the equipment and lockout/tagout per procedure
Wear rubber-insulatinggloves
Use insulated Tools
All the above

Power off the equipment and lockout/tagout per procedure

Wear rubber-insulating gloves

Use insulated tools

All the above

You may perform energized repair work on electrical equipment above 50 V without any approval

True

False

If you are not performing any work, you may enter an arc flash boundary without wearing PPE

True

False

The arc flash boundary is always 42 inches

True

False

Area in front of an electrical panel can be used as storage space as long as there is at least 24 inches of Clear Space

True

False

Arc flash hazard labels placed on equipment after an Arc Flash Analysis has been completed will tell you what information (choose 3):

Tools to use

Arc flash boundary

Voltage

Required PPE level or incident energy (cal/cm2) at a specific distance

Work procedures

Crew supervisor

Energized state

When working within the restricted approach boundary, you must have and use the following:

Voltage rated gloves

Rated insulated tools

Leather protective shoes

All the above

If working inside a low voltage restricted approach boundary, there is an increased likelihood of electrical shock

True

False

When should you barricade or guard a low voltage work zone if exposed, energized parts are present?

Always

When an arc flash hazard is present

When other people are working on electrical equipment

An Unqualified Person, wearing PPE, may enter the Limited Approach Boundary unescorted

True

False

When should voltage test instrument be verified to be working properly?

Before testing

After testing

Both, before and after testing

First thing each day

Portable GFCIs should be tested before each use

True

False

Where must your LOTO key be kept when your lock is applied:

On yourself

Shock protection PPE that includes voltage-rated gloves is not required unless the nominal voltage is greater than 120 volts

True

False

The flow of electric current flowing through a conductor is measured in

Amps

Ohms

Volts

side

The side of the power source that is connected to the ground is often called the

Neutral

Grounded

Hot

Which of the following objects are good conductors of electricity?

Human body

Copper

Steel

All the above

is detected, a GFCI will quickly trip, interrupting the circuit and stopping the flow of current

When a difference of

5 milliamps

10 milliamps

15 milliamps

30 milliamps

If you are troubleshooting in an energized panel, there must be a barrier set up prior to beginning work

True

False

Which of the following PPE is required when the equipment label states an incident energy of 7 cal/cm2? (Check all that apply)

Long sleeve shirt & pants; or coveralls rated at HRC2

Arc rated face shield

Arc rated balaclava

Hard hat (class G)

Safety glasses or goggles

Hearing protection

Leather footwear

Voltage rated rubber gloves

Leather protector gloves

Undergarments, non-melting material (cotton, wool, or silk)

Prior to using electrically insulating gloves, what test must be performed by the user on the gloves?

Di-electric test

Air leak test

No test is required

Leather protector gloves must be worn over the rubber insulating gloves

True

False

If I do not have rated insulated tools, it is acceptable to use non-voltage rated tools since that is all I have

True

False

An arc flash is an electrical breakdown of a gas which produces an ongoing plasma discharge, resulting from a current flowing through normally nonconductive media such as air. In an arc flash event, plasma temperature can reach 10,000OF and fatal burns can occur at distances over 10 feet

True

False

Which of the following is the most effective for arc flash prevention using the hierarchy of controls concept of eliminating the hazard?

Create an electrically safe working condition

Arc-resistant equipment

Arc flash boundary

Arc rated protective equipment such as shields or blankets

Arc rated PPE

What should you do if you see someone getting electrically shocked?

Do not touch the person, as you will only become a second victim

Turn off energy source, if possible

Dislodge the person from the energy source by using a non-conductive item

All the above

Creating a boundary is required when performing work activities while energized and exposed conductors are present. Which of the following is an acceptable practice for creating boundaries?

Tape – must be red, contain the words “Danger”. Other language can be on the tape such as “Keep Out”, “Do Not Enter”, “Electrical Hazard”, etc

Cones – must be red and used in conjunction with a sign that provides the same wording as the tape above

Either A or B

Before starting each job involving exposure to electrical hazards, a qualified employee must complete an (EEWP) Energized Electrical Work Permit and a job safety plan and conduct a job briefing with the employees involved

True

False

Only Qualified Employees are permitted to manually energize a circuit that has been de-energized by the automatic operation of a circuit protective device

True

False

If the equipment you are about to work on does not have an Arc Flash Label, what is the best action you can take?

Take a wild guess

Ask the person working with you

Stop work, contact your Supervisor and Safety

None of the above

When working on or exposed to electrically energized equipment or circuit parts, the only acceptable means of LO/TO verification is “Absence of Voltage Measurement” using approved voltage test equipment such as a Fluke Multimeter

True