Nccco core Exam Complete & Comprehensive Study Guide | Guaranteed A | / Guide The primary purpose for a rooster sheave or auxiliary boom point sheave is to
- Correct Answer - Separate the hoist lines
- Correct Answer - Upperworks
- Correct Answer - 3.5-1
- Correct Answer - 3.5 to 1
- Correct Answer - 5 to 1
- Correct Answer - The ultimate load at which a tensile failure
Where is the best location for a leveling a crane
What is the safe working load of right regular lay IWRC wire rope
What is the safe working load of boom hoist wire rope
What is the safe working load of rigging slings
What is the nominal strength of wire rope
occurs 1 / 4
What is a two leg bridal
- Correct Answer - Two wire rope slings attached by a lifting
- Correct Answer - Six randomly broken wires in one lay
- Correct Answer - To increase height
- Correct Answer - Structural strength
- Correct Answer - Never safe
- Correct Answer - 2 feet 2 / 4
ring Wire rope shall be removed from service if any of the following are present
Three randomly broken wires in one strand and one lay Where or scraping of 1/3 the original diameter of outside individual wires Boom extensions and Jibbs are used
Capacities above the bold line on the load chart are based on
When is it safe to work under the boom while erecting or dismantling
What is the minimum clearance needed between the crane counterweight and any obstacle
When working around powerlines you must
- Correct Answer - Never stockpile material under powerlines
- Correct Answer - Tie off the load
- Correct Answer - Three times the float area
- Correct Answer - Pressure
- Correct Answer - 10 feet
- Correct Answer - Starting or stopping the swing to rapidly
Maintain the correct distance according to the rated kilovolt Ground the crane with the proper grounding cable When using a crane to pick and carry a load you must
When using cribbing under your outriggers you should have at least times the total float area covered
Hydraulic pumps supply to the cranes hydraulic system
The minimum distance between the cranes boom and 50 kV high-voltage wires should be
Sideloading may be caused by
What is the best procedure to follow when underground utilities may be present 3 / 4
- Correct Answer - Contact local utility company
- Correct Answer - Twisting of the boom
- Correct Answer - supervisor
- Correct Answer - Put the load on the ground and put all dogs
- Correct Answer - Use manufactures operators manual or load
- Correct Answer - Have a pre-lift meeting
- Correct Answer - 20 mph
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Eccentric main boom tip reeving causes
Who has the responsibility for determining the correct weight of a load
When an operator leaves the crane he must first
or pawls in If replacing the hoist line wire rope on a crane how do you determine the size or type of wire rope to use
chart After the crane has been checked out and before lift operations begin the crew should
AcCording to Inzi personal platform lift should not be made with wind an excess of