Page 1 of 147
NWSA TTT-1 Exam ACTUAL QUESTIONS AND
DETAILED SOLUTIONS LATEST UPDATE THIS
YEAR
SUMMARIZED EXAM TOPICS COVERED (POINT FORM)
The NWSA TTT-1 exam is based on the ANSI/ASSP A10.48-2023 standard for safety practices on
communication structures. The exam includes both a written test and a practical exam (2-hour, 6 tasks).
Candidates must renew every 5 years by re-examination. Below are the critical knowledge domains
tested :
• Climbing & Fall Protection: Full-body harness inspection and donning, fall arrest vs. fall restraint
systems, 100% tie-off techniques, free fall distance calculation, anchorage requirements (5,000
lbs or 2x max arrest force), climbing facilities (rungs, step bolts, ladders), positioning devices,
safety climb cable systems.
• Rigging & Hoisting Equipment: Capstan hoist operation (line of sight to load/signal person),
synthetic rope inspection (daily), factor of safety for rigging (5:1) vs. synthetic rope (10:1), load
calculation (max gross load = breaking strength ÷ safety factor), knot tying (bowline reduces
rope strength), slotted hole hardware sequence (flat washer, lock washer, nut).
• Antenna & RF Safety: RF radiation hazards (ionizing vs. non-ionizing), resonance frequency
danger (FM waves match human body size), safe distance from active antennas (6 feet minimum
from centerline), antenna types (omni-directional = 360° transmission, panel antennas),
broadcast antenna overexposure effects (permanently changes cells).
• Tower Types & Components: Guyed towers (turnbuckles adjust tension, appurtenances include
antenna booms), self-support towers (3+ independent foundations), monopoles, tower
appurtenances (antennas, mounts, ice bridges, wave guides).
• Personal Protective Equipment (PPE): Hard hat requirements (employer policy, overhead
hazard, customer contract), carabiner use (PPE only—NEVER for load lifting), fall protection
inspection protocols (pre-use inspection daily).
• Electrical Safety: GFCI function (interrupts circuit during ground fault), lock-out/tag-out (LOTO)
application, power tool safety, extension cord inspection.
• Wire Rope & Synthetic Rope: Wire rope diameter measurement (actual diameter may be
slightly larger than spec), synthetic rope inspection frequency (daily if used daily), breaking
strength calculations, effects of knots on rope strength.
• Regulatory Bodies: FAA (Federal Aviation Administration)—regulates tower lighting, marking,
and obstruction lighting.
• Work Positioning & Rescue: Lift path determination, capstan positioning relative to lifting stage,
signal person communication, rescue planning (annual practice), competent rigger refresher
training (every 2 years for rigging, annual for rescue).
QUESTIONS 1–250
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1. Once the lifting path is determined, where should the vehicle-mounted capstan be positioned?
A) As close as possible to the load
B) As close as possible to the lifting stage area
C) At least 100 feet from the tower base
D) Directly under the tower
Answer: B
Rationale: The capstan should be moved as close as possible to the lifting stage area to maintain a clear
line of sight and minimize rope angle.
2. An antenna that can transmit 360° is called:
A) Directional
B) Panel
C) Omni-directional
D) Parabolic
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Answer: C
Rationale: Omni-directional antennas radiate signals in all directions (360° coverage).
3. When inspecting wire rope diameter, the actual measured diameter is slightly larger than the
specified diameter.
A) True
B) False
Answer: A
Rationale: Wire rope may measure slightly larger due to manufacturing tolerances and lubrication;
significant deviation indicates damage.
4. The factor of safety specified for general rigging equipment (steel components) is:
A) 3:1
B) 5:1
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C) 10:1
D) 15:1
Answer: B
Rationale: Rigging equipment (slings, shackles, steel components) requires a 5:1 safety factor per
industry standards.
5. Exposure to ionizing radiation does what to the human body?
A) Temporarily warms tissues
B) Permanently changes cells
C) Causes immediate dizziness
D) No long-term effect
Answer: B
Rationale: Ionizing radiation has enough energy to remove electrons from atoms, causing permanent
cellular damage.
NWSA TTT-1 Exam ACTUAL QUESTIONS AND
DETAILED SOLUTIONS LATEST UPDATE THIS
YEAR
SUMMARIZED EXAM TOPICS COVERED (POINT FORM)
The NWSA TTT-1 exam is based on the ANSI/ASSP A10.48-2023 standard for safety practices on
communication structures. The exam includes both a written test and a practical exam (2-hour, 6 tasks).
Candidates must renew every 5 years by re-examination. Below are the critical knowledge domains
tested :
• Climbing & Fall Protection: Full-body harness inspection and donning, fall arrest vs. fall restraint
systems, 100% tie-off techniques, free fall distance calculation, anchorage requirements (5,000
lbs or 2x max arrest force), climbing facilities (rungs, step bolts, ladders), positioning devices,
safety climb cable systems.
• Rigging & Hoisting Equipment: Capstan hoist operation (line of sight to load/signal person),
synthetic rope inspection (daily), factor of safety for rigging (5:1) vs. synthetic rope (10:1), load
calculation (max gross load = breaking strength ÷ safety factor), knot tying (bowline reduces
rope strength), slotted hole hardware sequence (flat washer, lock washer, nut).
• Antenna & RF Safety: RF radiation hazards (ionizing vs. non-ionizing), resonance frequency
danger (FM waves match human body size), safe distance from active antennas (6 feet minimum
from centerline), antenna types (omni-directional = 360° transmission, panel antennas),
broadcast antenna overexposure effects (permanently changes cells).
• Tower Types & Components: Guyed towers (turnbuckles adjust tension, appurtenances include
antenna booms), self-support towers (3+ independent foundations), monopoles, tower
appurtenances (antennas, mounts, ice bridges, wave guides).
• Personal Protective Equipment (PPE): Hard hat requirements (employer policy, overhead
hazard, customer contract), carabiner use (PPE only—NEVER for load lifting), fall protection
inspection protocols (pre-use inspection daily).
• Electrical Safety: GFCI function (interrupts circuit during ground fault), lock-out/tag-out (LOTO)
application, power tool safety, extension cord inspection.
• Wire Rope & Synthetic Rope: Wire rope diameter measurement (actual diameter may be
slightly larger than spec), synthetic rope inspection frequency (daily if used daily), breaking
strength calculations, effects of knots on rope strength.
• Regulatory Bodies: FAA (Federal Aviation Administration)—regulates tower lighting, marking,
and obstruction lighting.
• Work Positioning & Rescue: Lift path determination, capstan positioning relative to lifting stage,
signal person communication, rescue planning (annual practice), competent rigger refresher
training (every 2 years for rigging, annual for rescue).
QUESTIONS 1–250
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1. Once the lifting path is determined, where should the vehicle-mounted capstan be positioned?
A) As close as possible to the load
B) As close as possible to the lifting stage area
C) At least 100 feet from the tower base
D) Directly under the tower
Answer: B
Rationale: The capstan should be moved as close as possible to the lifting stage area to maintain a clear
line of sight and minimize rope angle.
2. An antenna that can transmit 360° is called:
A) Directional
B) Panel
C) Omni-directional
D) Parabolic
, Page 3 of 147
Answer: C
Rationale: Omni-directional antennas radiate signals in all directions (360° coverage).
3. When inspecting wire rope diameter, the actual measured diameter is slightly larger than the
specified diameter.
A) True
B) False
Answer: A
Rationale: Wire rope may measure slightly larger due to manufacturing tolerances and lubrication;
significant deviation indicates damage.
4. The factor of safety specified for general rigging equipment (steel components) is:
A) 3:1
B) 5:1
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C) 10:1
D) 15:1
Answer: B
Rationale: Rigging equipment (slings, shackles, steel components) requires a 5:1 safety factor per
industry standards.
5. Exposure to ionizing radiation does what to the human body?
A) Temporarily warms tissues
B) Permanently changes cells
C) Causes immediate dizziness
D) No long-term effect
Answer: B
Rationale: Ionizing radiation has enough energy to remove electrons from atoms, causing permanent
cellular damage.
