NFPA 70E Arc Flash Training Exam

When a person is electrocuted, the path that electricity is most likely to take is the nerve and blood systems, but may also damage the muscle and skeletal structure as well?

By definition an Arc Flash is a dangerous condition associated with the release of energy?

Electric arcs can reach temperatures as high as ______ degrees F.

Conductive apparel such as rings, watches, necklaces, metalized aprons and gloves should not be worn when working on energized circuits.

What amount of current causes fibrillation for most people?

AR shirt sleeves must be completely rolled down and buttoned to provide effective protection while performing energized work.

Workers are REQUIRED by OSHA to be able to determine the magnitude of the hazard.

Lower impedance transformers normally produce lower fault currents.

Each employee must do a before starting work and as the work scope changes during the job.

Employees required to use Personal Protective Equipment (PPE) should receive training in the use and maintenance of PPE. Which of the following are employees required to know?

What are the four types of energy released in an arc flash?

What are the four factors to determine the four types of energy released in an arc flash?

How many Hazard Risk Category Classifications are there?

Insulating rubber gloves are required to be dielectrically tested at what interval?

Electrical workers should never wear clothing that increases the extent of injuries. Which of the following are acceptable for an electrical worker exposed to Hazard Risk Category “2” electrical hazards?

Work is considered energized if the worker is exposed to which of the following?

For most energized work, electrical safe work practices must be established prior to beginning work, this is required at _____ volts or more.

What is the minimum “Restricted Approach” distance for qualified workers working on circuits over 300 volts but not over 750 volts.

Since test instruments are manufactured specifically for test applications, they cannot cause injury.

Under what circumstances would it be permissible to assume that a circuit is dead?

Once a machine or electrical equipment is isolated and lockout/tagout devices have been applied, what must be done before anyone touches a circuit?

Properly designed & Arc rated face shields worn correctly, can reduce injuries to the face and respiratory system.

Circuit breakers always operate within 2 cycles therefore, will protect you in the event of an electrical short circuit.

Positive identification of the component or segment of the system to be isolated can be accomplished by which of the following?

It is considered “Energized Work” when removing equipment from service for deenergized electrical work and when restoring the same equipment to service, therefore proper personal protective equipment must be worn.

Electrical equipment almost never fails, therefore most electrical accidents are caused by human error.

As long as the ground clamp properly fits the conductor, any sturdy clamp can be used.

Effective safety programs establish safety rules and provisions for enforcing rules uniformly for all employees.

Safety and health training addresses the responsibility of every employee to recognize the hazards to which they are exposed and how to _____ themselves and others from exposure to these hazards.

The flash protection boundary will always be inside the limited approach boundary.

Before a machine or electrical equipment is isolated and lockout/tagout devices have been applied, what must be done before anyone touches a circuit?

NFPA 70E Arc Flash labels provide Flash and Shock Protection boundaries.

Reclosing a circuit breaker is acceptable after it has tripped so you can see what happens.

The maximum ampacity for a 100 amp molded case circuit breaker is.

Foam ear plugs are approved for live energized work.

By definition PPE is required to protect 100% of my body therefore I will sustain no injuries, burns, or death.

Breakers only fail or explode when you energize them therefore when de-energizing a circuit no concern or testing needs to take place.

Non-contact, proximity testers are approved to determine the absence of voltage.