NETA - InterNational Electrical Testing Association Certified Technicians Electrical Safety and PPE Questions and Answers

Question 1

A NETA technician is preparing to perform maintenance on a 480V motor control center. An arc flash hazard analysis has determined the incident energy to be 10 cal/cm². According to NFPA 70E, what is the minimum Arc Flash PPE Category required for this task?

Accepted Answer

Category 3

Answer

NFPA 70E specifies Arc Flash PPE Categories based on incident energy. Category 3 is required for exposures with a minimum arc rating of 25 cal/cm². Since the calculated incident energy is 10 cal/cm², the technician must use PPE with a rating that meets or exceeds this value. Category 2 has a minimum rating of 8 cal/cm², which is insufficient. Category 3, with its minimum of 25 cal/cm², is the appropriate choice, providing adequate protection.

Question 2

When establishing an electrically safe work condition, what is the final step a qualified person must take before beginning work?

Accepted Answer

Use an adequately rated test instrument to verify the absence of voltage.

Answer

According to OSHA and NFPA 70E, the final and most critical step before touching conductors or circuit parts is to use an appropriately rated test instrument to verify that the circuit is de-energized. This step confirms that all energy sources have been successfully isolated and no voltage is present.

Question 3

A technician is wearing rubber insulating gloves with leather protectors. Which of the following statements is true regarding the use of this PPE?

Accepted Answer

Rubber insulating gloves must be visually inspected and air-tested before each use.

Answer

OSHA and ASTM standards require that rubber insulating gloves be inspected for any damage, such as cuts, holes, or ozone cutting, before each day's use and after any incident that could cause damage. An air test is a simple and effective method to check for pinholes. Leather protectors are for mechanical protection, not insulation, and are mandatory.

Question 4

Which of the following approach boundaries, as defined by NFPA 70E, may an unqualified person cross only if they are continuously escorted by a qualified person?

Accepted Answer

Limited Approach Boundary

Answer

The Limited Approach Boundary is the distance from an exposed energized part where a shock hazard exists. An unqualified person may only cross this boundary if they are advised of the potential hazards and are continuously escorted by a qualified person.

Question 5

A team of three NETA technicians is required to perform a lockout/tagout (LOTO) on a single piece of equipment. What is the correct procedure for applying locks?

Accepted Answer

Each technician must apply their own personal lock and tag to the energy isolating device.

Answer

OSHA's standard for Control of Hazardous Energy (Lockout/Tagout) requires that each employee working on the equipment places their own personal lock and tag on the energy isolating device. This ensures that the equipment cannot be re-energized until every individual has completed their work and removed their personal lock.

(NETA) InterNational Electrical Testing Association Certified Technicians Practice Test

(NETA) InterNational Electrical Testing Association Certified Technicians Practice Test

NETA - InterNational Electrical Testing Association Certified Technicians Electrical Safety and PPE Questions and Answers