Free NWSA TTT-1 Practice Test

Correct answer: A. ANSI/ASSP A10.48 requires rescue capability to be planned, equipped and staffed before work at height begins. Calling 911 is a medical plan, not a rescue plan — municipal responders are rarely equipped for tower rescue.

Correct answer: B. The JHA is a daily document. Hazards change with weather, crew, and scope, so it is reviewed and signed each shift before anyone works.

Correct answer: C. Every appurtenance adds wind and dead load. The tower's ANSI/TIA-222 analysis covers a defined list at defined elevations; adding to it without engineering review changes the analysis.

Correct answer: C. Stop-work authority belongs to every person on the crew. A culture that reserves it for supervisors produces fatalities.

Correct answer: B. 6 feet under 1926.501 and A10.48, which govern tower construction and climbing. OSHA's general industry rule (1910.28) uses 4 feet — know the distinction. In practice A10.48 requires 100% fall protection whenever you are climbing.

Correct answer: C. 1926.502(d)(15): 5,000 lb per employee attached, or part of a complete system designed, installed and used under a qualified person's supervision with a safety factor of at least two.

Correct answer: A. The dorsal D-ring is designed to orient the body upright during arrest. Side D-rings are for work positioning only. The sternal ring has limited fall-arrest use with compatible ladder-climbing systems under ANSI Z359.11, but the dorsal ring is the primary point.

Correct answer: C. 1926.502(d)(16)(iii): free fall of no more than 6 feet, and the worker must not contact a lower level. Many devices and site rules require less.

Correct answer: B. OSHA 1926.502(d)(19) requires immediate removal from service, with no reuse unless a competent person determines it undamaged; most manufacturers require destruction outright. Webbing and hardware can be damaged in ways inspection cannot see.

Correct answer: B. One leg stays attached while the other moves. A10.48 requires 100% fall protection whenever the climber is off the ground, including every transition.

Correct answer: C. Antenna mounts are rated for the antenna's static and wind loads, not for a dynamic arrest. They are mounting hardware, not anchorages.

Correct answer: B. WLL is the maximum service load. Breaking strength is typically five times WLL for rigging hardware, but that margin exists to cover shock, wear and uncertainty — it is never available for use.

Correct answer: B. The tag line lets a ground worker steer the load clear of the structure and stop it spinning. It never carries load.

Correct answer: B. B30.9 removal criteria include cuts, snags, holes, tears, burns, melting, chemical or UV damage, broken stitching, knots, and a missing or unreadable identification tag.

Correct answer: B. Hands stay free for three-point contact. Anything carried is a dropped-object hazard for the crew below.

Correct answer: B. Its hinged side plate lets a rope be inserted mid-line. It redirects hoist lines or builds mechanical advantage — and the force on the block can approach twice the line tension at a 180° turn.

Correct answer: B. Guyed masts are slender; the guy wires provide lateral stability. Their tension is an engineered value measured at each level, not adjusted by feel.

Correct answer: B. They are load-bearing structure, not fall-protection anchorage. Shock loading a guy with a fall also changes the structure's behavior.

Correct answer: B. The ice bridge is the horizontal run between tower and shelter. It supports the lines and shields them from ice falling off the tower. The vertical run on the tower is the cable ladder.

Correct answer: B. The diagonals tie the legs together so the tower acts as one stiff truss instead of three slender columns.

Correct answer: B. Under-torque loosens in wind; over-torque yields the fastener or crushes the clamp. Only a calibrated wrench to the published value is defensible.

Correct answer: C. Exceeding minimum bend radius crushes the dielectric and deforms the outer conductor. Straightening does not repair it, and the fault shows up on the sweep.

Correct answer: B. The inner tape layer lets the connector be serviced later without butyl on the threads; the outer tape protects the butyl from UV and abrasion. This is the OEM (CommScope) method.

Correct answer: B. A ground path that turns upward or makes sharp bends presents high impedance to a lightning impulse. Down and out, with sweeping bends, every time.

Correct answer: C. Mechanical tilt is set by the bracket; electrical tilt is set inside the antenna (often by RET). They are set separately and sum to the total.