NETA Safety and PPE 4

Question 1

When performing dielectric withstand testing, what additional safety precaution is critical beyond standard PPE?

Accepted Answer

Establishing a clear safety perimeter and warning barrier around the test area

Answer

A clearly marked safety perimeter prevents unqualified personnel from entering the test zone where lethal voltages are applied.

Question 2

What does an ATPV (Arc Thermal Performance Value) rating on arc-rated clothing indicate?

Accepted Answer

The incident energy level at which the garment has a 50% probability of preventing a second-degree burn

Answer

ATPV represents the incident energy (cal/cm²) at which there is a 50% probability that the fabric prevents onset of a second-degree burn.

Question 3

Which type of safety sign color indicates an immediate danger that will result in death or serious injury if not avoided?

Accepted Answer

Red

Answer

Red is used for DANGER signs per ANSI Z535.2, indicating an imminently hazardous situation that will result in death or serious injury.

Question 4

A NETA technician is testing a transformer with residual charge. Before disconnecting test leads, what must be done?

Accepted Answer

Discharge the transformer through a grounding stick or discharge resistor

Answer

Capacitive and inductive energy stored in transformers must be discharged through a grounding stick or discharge resistor before lead removal to prevent shock.

Question 5

What is the correct response if a co-worker receives an electrical shock and cannot release the energized conductor?

Accepted Answer

De-energize the circuit immediately or use a non-conductive object to separate them

Answer

The rescuer must de-energize the circuit first or use a non-conductive object to separate the victim without becoming a second victim.

(NETA) InterNational Electrical Testing Association Certified Technicians Practice Test

(NETA) InterNational Electrical Testing Association Certified Technicians Practice Test

NETA Safety and PPE 4