NWSA TTT-1 ACTUAL EXAM 2026/2027 |
Comprehensive Review | Verified Q&A | Pass
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SECTION 1: SAFETY & FALL PROTECTION (Q1–Q20)
Q1: Under ANSI/ASSP A10.48-2023, a fall arrest system must be designed to limit the maximum
arresting force on a worker to:
A. 900 pounds
B. 1,000 pounds
C. 1,800 pounds [CORRECT]
D. 2,500 pounds
Correct Answer: C
Rationale: ANSI/ASSP A10.48-2023 and OSHA 1926.502 require that fall arrest systems limit the
maximum arresting force on a worker to 1,800 pounds (8 kN) when used with a body harness. This force
limitation is critical to prevent serious injury during a fall arrest event. Systems must be designed,
tested, and maintained to ensure this threshold is not exceeded under anticipated loading conditions.
Q2: A tower technician is working at 150 feet on a monopole tower. The technician is using a positioning
lanyard and a separate shock-absorbing lanyard for fall arrest. According to ANSI/ASSP A10.48-2023,
what is the maximum free fall distance permitted before the fall arrest system engages?
A. 6 inches
B. 12 inches
C. 6 feet [CORRECT]
D. 10 feet
Correct Answer: C
Rationale: ANSI/ASSP A10.48-2023 and OSHA 1926.502(d)(16)(iii) specify that fall arrest systems must be
rigged to limit free fall distance to 6 feet or less. Free fall is the vertical distance a worker travels before
the fall arrest system begins to apply forces to arrest the fall. Rigging systems to minimize free fall
distance reduces the arresting forces on the worker and the potential for swing falls, which are a
significant hazard in tower work.
,Q3: A technician weighs 220 pounds with all tools and PPE. Using a shock-absorbing lanyard, the total
fall clearance distance required includes free fall distance, deceleration distance, harness stretch, and
safety margin. What is the minimum recommended total fall clearance distance for this worker?
A. 6 feet
B. 12 feet
C. 15.5 to 18.5 feet [CORRECT]
D. 25 feet
Correct Answer: C
Rationale: Total fall clearance distance is calculated as: free fall distance (6 feet maximum) +
deceleration distance (shock absorber deployment, typically 3.5 to 5 feet for a 220-pound worker) +
harness stretch (approximately 1 foot) + safety margin (2 to 3 feet) + D-ring slide (approximately 1 foot).
For a 220-pound worker, this totals approximately 15.5 to 18.5 feet. Technicians must ensure adequate
clearance below the work surface to prevent ground or lower-level contact during a fall.
Q4: Under ANSI/ASSP A10.48-2023, a competent person for fall protection must be capable of:
A. Climbing towers without fall protection
B. Identifying fall hazards, specifying corrective measures, and having authority to stop work [CORRECT]
C. Performing all rigging operations without supervision
D. Designing tower structures for wind loads
Correct Answer: B
Rationale: A competent person is defined by OSHA and ANSI/ASSP A10.48-2023 as one who is capable of
identifying existing and predictable hazards in the surroundings or working conditions that are
unsanitary, hazardous, or dangerous to employees, and who has authorization to take prompt
corrective measures to eliminate them. For fall protection, this includes the ability to evaluate fall
hazards, inspect equipment, specify appropriate fall protection systems, and exercise stop-work
authority when unsafe conditions exist.
Q5: A technician is working on a tower using a positioning device system (work positioning). According
to ANSI/ASSP A10.48-2023, the maximum fall distance permitted with a positioning device system is:
A. 6 feet
B. 2 feet [CORRECT]
C. 18 inches
D. 0 feet (no fall permitted)
,Correct Answer: B
Rationale: ANSI/ASSP A10.48-2023 specifies that positioning device systems must be rigged such that a
worker cannot free fall more than 2 feet. Positioning devices (such as positioning lanyards or pole
straps) are designed to support a worker on an elevated vertical surface and allow hands-free work, but
they are not fall arrest systems. The 2-foot limit ensures that if the positioning device fails or the worker
slips, the fall is arrested before significant forces or distances develop.
Q6: A full-body harness used for fall arrest must include which of the following features according to
ANSI Z359.11?
A. Only a dorsal D-ring for fall arrest attachment
B. A dorsal D-ring, sub-pelvic leg straps, and proper fit adjustment [CORRECT]
C. Only a chest D-ring for climbing attachment
D. A waist belt with tool loops as the primary attachment point
Correct Answer: B
Rationale: ANSI Z359.11 specifies that full-body harnesses for fall arrest must include a dorsal D-ring
located between the shoulder blades as the primary fall arrest attachment point, sub-pelvic leg straps
that distribute forces to the thighs and pelvis during a fall arrest, and adjustable straps to ensure proper
fit. The sub-pelvic straps are critical for preventing suspension trauma and ensuring that forces are
distributed away from the soft tissues of the abdomen during a fall event.
Q7: A technician inspects a shock-absorbing lanyard before use and finds that the warning label is
exposed, indicating the energy absorber has been deployed. What is the correct action?
A. Use the lanyard only for positioning, not fall arrest
B. Remove the lanyard from service immediately and destroy it [CORRECT]
C. Repack the energy absorber and continue using the lanyard
D. Use the lanyard with a backup lanyard for added safety
Correct Answer: B
Rationale: A shock-absorbing lanyard with an exposed warning label or deployed energy absorber has
been subjected to fall arrest forces or has deteriorated and must be removed from service immediately.
The energy-absorbing material is designed for a single use; once deployed, it cannot be repacked or
reused. The lanyard must be destroyed to prevent inadvertent reuse. This inspection is part of the pre-
use equipment check required by ANSI/ASSP A10.48-2023 and manufacturer instructions.
Q8: According to ANSI/ASSP A10.48-2023, fall protection equipment must be inspected by the user:
, A. Only annually by a competent person
B. Before each use and at least annually by a competent person [CORRECT]
C. Only when it appears damaged
D. Every 6 months by the manufacturer
Correct Answer: B
Rationale: ANSI/ASSP A10.48-2023 requires that fall protection equipment be inspected by the
competent person at least annually and by the user before each use. Pre-use inspections must check for
cuts, burns, chemical damage, fraying, broken stitching, distorted hardware, and other signs of wear or
damage. Annual inspections must be documented. Equipment that fails inspection must be immediately
removed from service, tagged as unusable, and destroyed or returned to the manufacturer for
evaluation.
Q9: A technician is using a self-retracting lanyard (SRL) with a maximum arresting force rating of 900
pounds. The technician weighs 310 pounds with tools. What is the correct action?
A. Use the SRL with a shock-absorbing lanyard as a backup
B. Do not use this SRL; the worker weight exceeds the rated capacity [CORRECT]
C. Use the SRL but limit free fall to 2 feet
D. Use the SRL only for positioning, not fall arrest
Correct Answer: B
Rationale: Self-retracting lanyards are rated for maximum worker weight, including clothing, tools, and
equipment. If the total weight exceeds the SRL's rated capacity (commonly 310 to 420 pounds
depending on the model), the SRL must not be used for fall arrest. Exceeding the rated capacity can
result in excessive arresting forces, failure to arrest the fall, or equipment failure. The technician must
use equipment rated for their total weight or reduce the load to within rated limits.
Q10: Under ANSI/ASSP A10.48-2023, the minimum breaking strength of a full-body harness webbing
must be:
A. 3,000 pounds
B. 4,000 pounds
C. 5,000 pounds [CORRECT]
D. 10,000 pounds
Correct Answer: C
Rationale: ANSI Z359.11 requires that full-body harness webbing have a minimum tensile strength
(breaking strength) of 5,000 pounds (22.2 kN). This requirement ensures that the harness can withstand
the dynamic forces generated during a fall arrest event, including the shock load from deceleration.
Comprehensive Review | Verified Q&A | Pass
Guaranteed - A+ Graded
SECTION 1: SAFETY & FALL PROTECTION (Q1–Q20)
Q1: Under ANSI/ASSP A10.48-2023, a fall arrest system must be designed to limit the maximum
arresting force on a worker to:
A. 900 pounds
B. 1,000 pounds
C. 1,800 pounds [CORRECT]
D. 2,500 pounds
Correct Answer: C
Rationale: ANSI/ASSP A10.48-2023 and OSHA 1926.502 require that fall arrest systems limit the
maximum arresting force on a worker to 1,800 pounds (8 kN) when used with a body harness. This force
limitation is critical to prevent serious injury during a fall arrest event. Systems must be designed,
tested, and maintained to ensure this threshold is not exceeded under anticipated loading conditions.
Q2: A tower technician is working at 150 feet on a monopole tower. The technician is using a positioning
lanyard and a separate shock-absorbing lanyard for fall arrest. According to ANSI/ASSP A10.48-2023,
what is the maximum free fall distance permitted before the fall arrest system engages?
A. 6 inches
B. 12 inches
C. 6 feet [CORRECT]
D. 10 feet
Correct Answer: C
Rationale: ANSI/ASSP A10.48-2023 and OSHA 1926.502(d)(16)(iii) specify that fall arrest systems must be
rigged to limit free fall distance to 6 feet or less. Free fall is the vertical distance a worker travels before
the fall arrest system begins to apply forces to arrest the fall. Rigging systems to minimize free fall
distance reduces the arresting forces on the worker and the potential for swing falls, which are a
significant hazard in tower work.
,Q3: A technician weighs 220 pounds with all tools and PPE. Using a shock-absorbing lanyard, the total
fall clearance distance required includes free fall distance, deceleration distance, harness stretch, and
safety margin. What is the minimum recommended total fall clearance distance for this worker?
A. 6 feet
B. 12 feet
C. 15.5 to 18.5 feet [CORRECT]
D. 25 feet
Correct Answer: C
Rationale: Total fall clearance distance is calculated as: free fall distance (6 feet maximum) +
deceleration distance (shock absorber deployment, typically 3.5 to 5 feet for a 220-pound worker) +
harness stretch (approximately 1 foot) + safety margin (2 to 3 feet) + D-ring slide (approximately 1 foot).
For a 220-pound worker, this totals approximately 15.5 to 18.5 feet. Technicians must ensure adequate
clearance below the work surface to prevent ground or lower-level contact during a fall.
Q4: Under ANSI/ASSP A10.48-2023, a competent person for fall protection must be capable of:
A. Climbing towers without fall protection
B. Identifying fall hazards, specifying corrective measures, and having authority to stop work [CORRECT]
C. Performing all rigging operations without supervision
D. Designing tower structures for wind loads
Correct Answer: B
Rationale: A competent person is defined by OSHA and ANSI/ASSP A10.48-2023 as one who is capable of
identifying existing and predictable hazards in the surroundings or working conditions that are
unsanitary, hazardous, or dangerous to employees, and who has authorization to take prompt
corrective measures to eliminate them. For fall protection, this includes the ability to evaluate fall
hazards, inspect equipment, specify appropriate fall protection systems, and exercise stop-work
authority when unsafe conditions exist.
Q5: A technician is working on a tower using a positioning device system (work positioning). According
to ANSI/ASSP A10.48-2023, the maximum fall distance permitted with a positioning device system is:
A. 6 feet
B. 2 feet [CORRECT]
C. 18 inches
D. 0 feet (no fall permitted)
,Correct Answer: B
Rationale: ANSI/ASSP A10.48-2023 specifies that positioning device systems must be rigged such that a
worker cannot free fall more than 2 feet. Positioning devices (such as positioning lanyards or pole
straps) are designed to support a worker on an elevated vertical surface and allow hands-free work, but
they are not fall arrest systems. The 2-foot limit ensures that if the positioning device fails or the worker
slips, the fall is arrested before significant forces or distances develop.
Q6: A full-body harness used for fall arrest must include which of the following features according to
ANSI Z359.11?
A. Only a dorsal D-ring for fall arrest attachment
B. A dorsal D-ring, sub-pelvic leg straps, and proper fit adjustment [CORRECT]
C. Only a chest D-ring for climbing attachment
D. A waist belt with tool loops as the primary attachment point
Correct Answer: B
Rationale: ANSI Z359.11 specifies that full-body harnesses for fall arrest must include a dorsal D-ring
located between the shoulder blades as the primary fall arrest attachment point, sub-pelvic leg straps
that distribute forces to the thighs and pelvis during a fall arrest, and adjustable straps to ensure proper
fit. The sub-pelvic straps are critical for preventing suspension trauma and ensuring that forces are
distributed away from the soft tissues of the abdomen during a fall event.
Q7: A technician inspects a shock-absorbing lanyard before use and finds that the warning label is
exposed, indicating the energy absorber has been deployed. What is the correct action?
A. Use the lanyard only for positioning, not fall arrest
B. Remove the lanyard from service immediately and destroy it [CORRECT]
C. Repack the energy absorber and continue using the lanyard
D. Use the lanyard with a backup lanyard for added safety
Correct Answer: B
Rationale: A shock-absorbing lanyard with an exposed warning label or deployed energy absorber has
been subjected to fall arrest forces or has deteriorated and must be removed from service immediately.
The energy-absorbing material is designed for a single use; once deployed, it cannot be repacked or
reused. The lanyard must be destroyed to prevent inadvertent reuse. This inspection is part of the pre-
use equipment check required by ANSI/ASSP A10.48-2023 and manufacturer instructions.
Q8: According to ANSI/ASSP A10.48-2023, fall protection equipment must be inspected by the user:
, A. Only annually by a competent person
B. Before each use and at least annually by a competent person [CORRECT]
C. Only when it appears damaged
D. Every 6 months by the manufacturer
Correct Answer: B
Rationale: ANSI/ASSP A10.48-2023 requires that fall protection equipment be inspected by the
competent person at least annually and by the user before each use. Pre-use inspections must check for
cuts, burns, chemical damage, fraying, broken stitching, distorted hardware, and other signs of wear or
damage. Annual inspections must be documented. Equipment that fails inspection must be immediately
removed from service, tagged as unusable, and destroyed or returned to the manufacturer for
evaluation.
Q9: A technician is using a self-retracting lanyard (SRL) with a maximum arresting force rating of 900
pounds. The technician weighs 310 pounds with tools. What is the correct action?
A. Use the SRL with a shock-absorbing lanyard as a backup
B. Do not use this SRL; the worker weight exceeds the rated capacity [CORRECT]
C. Use the SRL but limit free fall to 2 feet
D. Use the SRL only for positioning, not fall arrest
Correct Answer: B
Rationale: Self-retracting lanyards are rated for maximum worker weight, including clothing, tools, and
equipment. If the total weight exceeds the SRL's rated capacity (commonly 310 to 420 pounds
depending on the model), the SRL must not be used for fall arrest. Exceeding the rated capacity can
result in excessive arresting forces, failure to arrest the fall, or equipment failure. The technician must
use equipment rated for their total weight or reduce the load to within rated limits.
Q10: Under ANSI/ASSP A10.48-2023, the minimum breaking strength of a full-body harness webbing
must be:
A. 3,000 pounds
B. 4,000 pounds
C. 5,000 pounds [CORRECT]
D. 10,000 pounds
Correct Answer: C
Rationale: ANSI Z359.11 requires that full-body harness webbing have a minimum tensile strength
(breaking strength) of 5,000 pounds (22.2 kN). This requirement ensures that the harness can withstand
the dynamic forces generated during a fall arrest event, including the shock load from deceleration.
