What kind of boundaries does NFPA 70E 2015 identify?

C Boundaries for shock and flash protection

A Boundaries for the use of tools and equipment

B Boundaries for the use of specific PPE

D Boundaries for safety behaviours

What do arc flash calculations identify?

D Flash protection boundaries and incident energy

B Shock protection boundaries and PPE requirements

C Shock protection boundaries and flash protection boundaries

What is an open arc flash?

B It is an arc flash created in unconfined spaces.

A It is an arc flash created by equipment in closed spaces.

C It is created by an ejected arc.

D It is created by a tracking arc.

What is working distance?

C How far away a worker is from a potential arc flash source inside a piece of electrical equipment.

A How far away a worker is from a piece of electrical equipment.

B How far away a worker is from their place of work.

D How far away you should be to avoid getting a shock.

142 cbt review 1

Authored by Rizwan Rizwan

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Professional Development

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MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Which of the following is the difference between the NFPA 70E and IEEE Standard 1584-2002?

A Use the same methods to calculate flash boundaries and incident energy.

B Are identical standards from different countries.

C Are unrelated standards.

D Use very different methods to calculate flash boundaries and incident energy.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Which of the following is a superheated gas that is created by the arc flash and expands rapidly from the arc location.

A Incident Energy

B Plasma

C X-ray

D Gamma

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

The OSHA state that PPE is the ____________________?

A Is the first line of defence for protecting workers.

B Should be in nice colours.

C Is the last line of defence for protecting workers.

D Deals with people and processes.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What are Hazard Risk Categories used for?

A To warn you of hazards.

B To tell you how large a shock you might get from an electrical system.

C To tell you the voltage level of an electrical system.

D To select the correct PPE for a given task.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What is system earthing?

A A connection between part of plant in an operating system and earth

B Connecting equipment to earth

C Connecting up all parts of a plant

D Where the neutral of a power transformer is earthed solidly with a copper conductor

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

What is a hot stick?

A A device for removing heat from electric circuits

B A device for holding up electrical lines while being worked on

C A device for providing physical separation from the device being operated

D A device for measuring the voltage level of an electrical system.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

How much heat can an arc flash produce?

A Half of the heat of the sun

B Twice the heat of the sun

C Three times the heat of the sun

D Four times the heat of the sun

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142 cbt review 1

Which of the following is the difference between the NFPA 70E and IEEE Standard 1584-2002?

Which of the following is a superheated gas that is created by the arc flash and expands rapidly from the arc location.

The OSHA state that PPE is the ____________________?

What are Hazard Risk Categories used for?

What is system earthing?

What is a hot stick?

How much heat can an arc flash produce?

What is arc flash energy also called?

Which of the is where a flashover of electric current leaves its intended path and travels through the air from one conductor to another, or to ground?

Which of the is the amount of thermal incident energy workers could be exposed to at working distance during an electrical arc event?

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