Intermediate Rigging (BOOM VOC) Test | Questions and Answers | Latest 2025 / 2026 Update | 100 out of 100 | GRADED A

Intermediate Rigging (BOOM VOC) Test | Questions and Answers | Latest 2025 / 2026 Update | 100 out of 100 | GRADED A . Question: What factor would you apply in determining the minimum capacity requirement for cranes, slings etc for use in a dual crane lift? Answer: 20% reduction for each crane Question: When using more than one crane for a lift, how many crane motions would you direct at any one time? Answer: One Question: When rotating a load using two cranes, how much weight must the primary crane be capable of carrying? Answer: 100% of the load Question: Is a person with a basic rigger certificate allowed to supervise dual crane lifts? Answer: No Question: Calculate the required minimum crane capacity for each crane where two cranes are used to lift a 35 tonne beam and the sling pints are located at equal distance from each end? Answer: 35t divided by 2 = 17.5 x 20% = 21t Each crane must have a capacity of 21t at the required radius Question: When rotating a load using the main and auxiliary hooks on a single crane, how ` much weight must the whip line or auxiliary hook be capable of carrying? Answer: 20% less than its rated capacity Question: What is the minimum amount of clearance required between the top layer of rope and the rim of the flange of a winch drum? Answer: A minimum of two full turns on the winch drum Question: How would you determine the fleet angle for an un-grooved winch drum? Answer: With of drum 1 meter x 19 (factor) x 0.5 (half the with of the drum) = 9.5, So the sheave must be a minimum of 9.5 m from the drum Question: What is the maximum fleet angle allowed for a grooved drum? Answer: 5 degrees or 1 in12 factor Question: What are some of the effects of working with fleet angles greater than allowed under the standards? Answer: Increased rope wear and sheave wear as well as uneven spooling Question: When transferring a load from a crane hook to a chain block (say in a building) how much side angle from the line of the boom would you allow? Answer: 0 degrees Question: When transferring a load from one chain block to another, how would you determine the maximum angles you would allow for the chain blocks? Answer: 60 degrees