Roof Sailing Rigging and Line Systems 2

Question 1

Which type of carabiner is required for use in fall protection systems according to ANSI/ASSE Z359 standards?

Accepted Answer

Locking carabiner with a gate strength of at least 3,600 lbs

Answer

ANSI/ASSE Z359 requires locking carabiners with a gate strength of at least 3,600 lbs (16 kN) to prevent accidental opening during a fall.

Question 2

What does 'rope lay' refer to when evaluating a line for rigging use?

Accepted Answer

The direction and tightness of the rope's twisted strands

Answer

Rope lay describes how the strands are twisted together (left-lay or right-lay) and how tightly, which affects handling, strength, and compatibility with hardware.

Question 3

A shock-absorbing lanyard is designed to limit the maximum arrest force on a worker to which value?

Accepted Answer

900 lbs (4 kN)

Answer

Shock-absorbing lanyards are designed to deploy and limit the maximum arrest force transmitted to the worker to 900 lbs (4 kN), protecting the body from injury during a fall arrest.

Question 4

When two ropes must be joined end-to-end for a rigging extension, which knot is the safest choice?

Accepted Answer

Double fisherman's knot

Answer

The double fisherman's knot (also called a grapevine bend) creates a very secure join between two ropes that tightens under load and is the standard for life-safety rope joining.

Question 5

What is the recommended maximum free-fall distance allowed before a fall arrest system activates, per OSHA 1926.502?

Accepted Answer

6 feet

Answer

OSHA 1926.502 limits free-fall distance to 6 feet for personal fall arrest systems to reduce the forces generated during arrest.

Roof Sailing Practice Test

Roof Sailing Practice Test

Roof Sailing Rigging and Line Systems 2