Arc Flash Safety Test

Which of the following is the best description of how an arc flash occurs?

• A person touches an electric component, the electric current flows through his/her body and causes an electric shock

• A circuit breaker is tripped

• A welding unit generates high heat to melt two pieces of metal to each other

• An electric current travels through the air and releases a large amount of energy

Never do any electrical work unless you are completely authorized and ________.

• a long-time employee of the facility owner

• considered qualified by the facility owner

• feeling excited about the work

• have done electrical work within the past 10 years

Which of the following injuries can be caused by an arc flash? (Select all that apply.)

• Burns

• Eye injuries, including blindness

• Collapsed lungs

• Broken bones

Which of the following are dangers of an arc flash? (Select all that apply.)

• Temperature can be as high as 35,000 °F (19,500 °C)

• Electrical components can explode

• Can hurt people as far as 100 feet away

• Can cause permanent hearing loss

• Can be deadly from low-voltage and high-voltage equipment

Which of the following are factors that increase the likelihood of an arc flash occurring? (Select all that apply.)

• Damage to a component

• Animals or insects contacting electrical parts

• Corrosion on an electrical part

• Dust on an electrical part

What are some worker actions or errors that can contribute to the likelihood of an arc flash occurring? (Select all that apply.)

• Contacting a live electrical part

• Working in a space without enough room

• Not following correct Lockout/Tagout procedures

• Not paying attention to posted warning signs or labels

What are some of the ways a facility can reduce the likelihood of an arc flash injuring workers? (Select all that apply.)

• Regularly inspecting and maintaining electrical equipment

• Ensuring workers are properly trained at their jobs

• Ensuring all work is done when the equipment is energized

• Placing guards to keep workers from unintentionally contacting energized equipment

Employers are required to include a risk assessment prior to employees being exposed to electrical hazards, which of the following are parts of that assessment? (Select all that apply.)

• Identifying hazards

• Assessing risks

• Implementing risk control

• Eliminating all electrical hazards

Write the correct order of the following components of the risk control method hierarchy. (Ex:- A,B,C,D,E,F)

A. PPE

B. Engineering controls

C. Substitution

D. Elimination

E. Administrative controls

F. Awareness

Match the following components of the risk control method hierarchy with their corresponding descriptions. (Ex:- 1A,2B,3C)