Nccco core Exam Complete &
Comprehensive Study Guide |
Guaranteed A | 2024/2025 Guide
The primary purpose for a rooster sheave or auxiliary boom
point sheave is to
- Correct Answer - Separate the hoist lines
Where is the best location for a leveling a crane
- Correct Answer - Upperworks
What is the safe working load of right regular lay IWRC wire
rope
- Correct Answer - 3.5-1
What is the safe working load of boom hoist wire rope
- Correct Answer - 3.5 to 1
What is the safe working load of rigging slings
- Correct Answer - 5 to 1
What is the nominal strength of wire rope
- Correct Answer - The ultimate load at which a tensile failure
occurs
,What is a two leg bridal
- Correct Answer - Two wire rope slings attached by a lifting
ring
Wire rope shall be removed from service if any of the following
are present
- Correct Answer - Six randomly broken wires in one lay
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
- Correct Answer - To increase height
Capacities above the bold line on the load chart are based on
- Correct Answer - Structural strength
When is it safe to work under the boom while erecting or
dismantling
- Correct Answer - Never safe
What is the minimum clearance needed between the crane
counterweight and any obstacle
- Correct Answer - 2 feet
,When working around powerlines you must
- Correct Answer - Never stockpile material under powerlines
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
- Correct Answer - Tie off the load
When using cribbing under your outriggers you should have at
least times the total float area covered
- Correct Answer - Three times the float area
Hydraulic pumps supply to the cranes hydraulic system
- Correct Answer - Pressure
The minimum distance between the cranes boom and 50 kV
high-voltage wires should be
- Correct Answer - 10 feet
Sideloading may be caused by
- Correct Answer - Starting or stopping the swing to rapidly
What is the best procedure to follow when underground utilities
may be present
, - Correct Answer - Contact local utility company
Eccentric main boom tip reeving causes
- Correct Answer - Twisting of the boom
Who has the responsibility for determining the correct weight of
a load
- Correct Answer - supervisor
When an operator leaves the crane he must first
- Correct Answer - Put the load on the ground and put all dogs
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
- Correct Answer - Use manufactures operators manual or load
chart
After the crane has been checked out and before lift operations
begin the crew should
- Correct Answer - Have a pre-lift meeting
AcCording to Inzi personal platform lift should not be made with
wind an excess of
- Correct Answer - 20 mph
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