NCCCO CORE EXAM QUESTIONS AND CORRECT
ANSWERS 100% PASS ( - ) GRADED A+
Unless the manufacturer states otherwise the wind speed to seize hoisting Shall be 30 mph
When hoisting personnel OSHA requires wind speed not to exceed 20 mph
Who has the responsibility of determining the correct weight of the load Supervisor
When an operator leave there a crane they must Land load engage all locks and Pawls and lock machine
When is it safe to work closer than alarm for distance from any powerline When the utility company certifies that the lines are D energized
When operating a crawler crane what is the most unstable allowable quadrant of operation Side
What is not a good location for crane set up Above utilities
1 1 / 4
Eccentric main boom reeving can cause Twisting of the boom
When putting wire rope on a drum the rope can be spoiled to within of the top of the drum Half an inch
To prevent unauthorized access to the cranes working area though needs to be barricaded Working radius
What is the minimum distance from the cranes counterweight and any obstacle 2 feet
Which of the following weather conditions could restrict or stop hoisting activities Wind gusts
Rigging hooks must be discarded if the throat opening is increased by more than 5%
A crane performing personal lifts must not exceed of its rated capacity
50%
A luffing jib on a conventional or hydraulic crane will
2 2 / 4
Boom up or down independently of the main boom
On a crane off level by 1% with a main boom height of 100 feet the whip line would be off-center by 12 inches////12 inches for every 1° for 100 feet
The crane center of gravity were very the most swinging from the rear to the side with what type of crane Truck crane
When is sideload is introduced to a lattice boom what part of the boom would encourage the highest stress Boom tip
Voice signals must include Function and direction Distance and speed Function and stop
When assembling or disassembling a lattice boom when is it permissible to work under the boom When the AV Director shows it is in feasible not to and the limits time and movement////safe=never only when says permissible
What was the result of boom deflection be Increased Boom radius
3 3 / 4
When a crane is out of level by 1° it will lose the most capacity at what configuration Long boom minimum radius
What is the purpose of using a spreader beam Support long hard to control loads
Which of the following actions is most likely to cause two blocking Telescoping the boom out
When is it safe to handle loads under powerlines The load knows where any part of the crane can come closer than regulations allow
When working your power lines tag lines and slings should be constructed of Probably propylene or polyethylene and webbing because they offer a fair insulating property
When reading a load chart the listed capacity has an Asterix next to it this means The capacities are based on the crane structural competence
Pick can be made with the intermediate outriggers If there is a load chart for intermediate Outrigger work
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