NWSA Personal Protective Equipment (PPE) 3

Question 1

A tower crew member's safety glasses have a scratch across the lens directly in the line of vision. What is the correct action?

Accepted Answer

Replace them immediately before continuing work

Answer

Continue using them until end of shift

Answer

Polish the scratch with lens cleaner and continue

Answer

Use them only for tasks not requiring clear vision

Question 2

Which NWSA guideline addresses the maximum weight limit that a full-body harness must be rated for, including tools and equipment?

Accepted Answer

310 lbs (141 kg) total, including worker, clothing, tools, and equipment

Answer

250 lbs (113 kg) body weight only

Answer

400 lbs (181 kg) combined weight

Answer

500 lbs (227 kg) for heavy-duty harnesses

Question 3

What is the shelf life of most latex and rubber PPE components such as rubber insulating gloves when stored properly?

Accepted Answer

Determined by the manufacturer with periodic retesting required

Answer

Indefinite if stored in a cool, dark place

Answer

3 years from manufacture date

Answer

They have no shelf life; replace only on visible damage

Question 4

When working at height in conditions below freezing, which adaptation to PPE is most important for maintaining safety?

Accepted Answer

Using thermal inner layers under the harness and ensuring harness fit is re-checked after layering

Answer

Wearing thicker gloves without regard to dexterity loss

Answer

Removing the hard hat to wear a winter hat underneath without re-checking fit

Answer

Relying on body heat to compensate and using standard PPE unchanged

Question 5

Which ASTM standard governs the testing and use of rubber insulating gloves for electrical protection in tower work?

Accepted Answer

ASTM D120 and ASTM F496

Answer

ASTM F696

Answer

ASTM F696 and ASTM D120

Answer

ASTM F1505

Question 6

What is the maximum permissible free-fall distance allowed when using a personal fall arrest system (PFAS) per OSHA 29 CFR 1926.502?

Accepted Answer

6 feet (1.8 m)

Answer

4 feet (1.2 m)

Answer

10 feet (3 m)

Answer

12 feet (3.7 m)

Question 7

How should a hard hat suspension system be inspected for serviceability before each use?

Accepted Answer

Inspect suspension bands for fraying, tears, loss of elasticity, and check that all attachment points are secure

Answer

Check only the outer shell for cracks and dents

Answer

Replace the suspension every 6 months regardless of condition

Answer

Clean the suspension with solvent to check for hidden cracks