Hoisting and Rigging Practices Flashcards
6 cards from real NWSA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Hoisting and Rigging Practices flashcards as text
According to the ANSI/ASSP A10.48 standard, which of the following is a mandatory component of a rigging plan for a communication structure lift?
Answer: Operational and non-operational construction loads and limitations
The ANSI/ASSP A10.48 standard specifies that a rigging plan must include details about the construction loads, both operational and non-operational, and their limitations to ensure the structural stability and safety of the lift.
A signal person is communicating with a crane operator to swing the boom to the left. What is the standard OSHA hand signal for this command?
Answer: Arm extended horizontally, with the index finger pointing in the direction of the swing.
The standard OSHA and ASME hand signal for swinging a crane boom is to extend the arm horizontally with the index finger pointing in the intended direction of the boom's movement.
During a pre-use inspection of a gin pole, a competent person discovers a crack in a weld on one of the leg sections. What is the correct course of action?
Answer: Immediately remove the gin pole from service until it can be inspected by a qualified person and properly repaired.
Industry standards and safety regulations mandate that if any cracks or significant defects are found during a gin pole inspection, the equipment must be immediately removed from service. Operations should not resume until a qualified person has inspected the damage and it has been repaired according to the manufacturer's or an engineer's specifications.
A rigging crew is preparing to lift a new antenna array that weighs 450 lbs. The synthetic rope being used has a manufacturer's breaking strength of 5,000 lbs. What is the factor of safety for the rope in this lift?
Answer: 11.1:1
The factor of safety is calculated by dividing the breaking strength of the rope by the working load limit (the weight of the load). In this scenario: 5,000 lbs (Breaking Strength) / 450 lbs (Load) = 11.11. The factor of safety is approximately 11.1:1. Note that while rigging components often require a minimum 5:1 safety factor, synthetic ropes typically require 10:1. This lift exceeds the minimum requirement.
Which of the following personnel is ultimately responsible for developing and approving a 'special engineered lift' that falls outside the gin pole's standard load chart?
Answer: A Qualified Professional Engineer
When a lift's parameters fall outside of the standard load chart provided by the manufacturer, it is classified as a special engineered lift. Such lifts require specific planning, analysis, and approval from a qualified professional engineer to ensure safety and structural integrity.
A capstan hoist is being used to lift materials up a tower. What is a primary safety prohibition regarding the use of this type of hoist?
Answer: Using it for hoisting personnel
OSHA regulations and industry standards, such as ANSI/ASSP A10.48, explicitly prohibit the use of capstan hoists for lifting personnel. These hoists are designed for materials only, and a base-mounted drum hoist is required for personnel lifts.