NWSA Study Guide 2026
Everything you need to pass the NWSA exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 NWSA Exam Format at a Glance
📚 NWSA Topics to Study (41)
✍️ Sample NWSA Questions & Answers
1. What must be done with all tools and equipment used at height on a tower?
Dropped object prevention through tool tethering is a primary safety measure. An untethered tool dropped from height can cause fatal injuries.
2. What is a critical lift and what additional precautions does it require?
Critical lifts involve higher-than-normal risk factors that require additional planning and supervisory oversight.
3. What does the designation 'Type II' indicate on a hard hat classification?
Type II hard hats provide protection against impacts to the top of the head as well as off-center and lateral impacts, offering greater all-around protection than Type I hats.
4. What must be done before using a synthetic sling for hoisting on a tower?
Synthetic slings degrade from UV exposure, chemicals, heat, and physical damage. Pre-use inspection prevents sling failure.
5. According to FCC OET Bulletin 65, the human body most efficiently absorbs RF energy, and thus the Maximum Permissible Exposure (MPE) limits are most restrictive, within which frequency range?
FCC OET Bulletin 65 specifies that whole-body absorption of RF energy by humans is most efficient in the 30-300 MHz frequency range. Because of this higher absorption rate, the MPE limits are at their most restrictive in this range to provide adequate protection.
6. What must the employer provide regarding sanitation facilities at a tower work site?
OSHA 1926.51 requires employers to provide toilet facilities and potable water at construction sites.