NCCCO tower crane flashcards COMPLETE QUESTIONS & SOLUTIONS(LATEST UPDATE 2024)EXAM BUNDLE

Which area do truck cranes without a 5th outrigger generally have no lifting capacity unless the manufacturer states otherwise? - ANSWER The front What is the definition of "operating radius?" - ANSWER The distance from the center of rotation of the crane to the center of gravity of the load

Before leveling a mobile crane on outriggers, an operator should ensure: - ANSWER there is no weight of the crane bearing on any tires Operating a mobile crane with a long boom, on uneven ground, what support condition should be considered? - ANSWER Keeping 90 degree angle between cylinder rod an...

A frequent inspection is: - ANSWER Daily to monthly 1. What action does a signal person intend the operator to perform if he extends his arm at shoulder height, makes a fist with his hand, and sticks his/her thumb up? - ANSWER Boom Up (Appendix A to Subpart CC of Part 1926--Standard Hand Signal...

Boom up - ANSWER What action does a signal person intend the operator to perform if he extends his arm at shoulder height, makes a fist with his hand, and sticks his/her thumb up? 1% - ANSWER When hoisting personnel, within what percentage of level must a telescopic boom crane be in order for the...

How does the operator verify the LMI's boom length or load radius reading? - ANSWER Actual measurements On whose recommendations should a preventive maintenance program be set-up? - ANSWER Crane manufacturer The proper way to calibrate a boom angle indicator is; - ANSWER Using a level, raise ...

The lattice boom is designed to take winds of up to 20 mph. from the side plus a full rated load, plus a direct side load equal to what percent of the rated load? - ANSWER 2% The part of the load chart governed by stability is based on what percentage of capacity while a crawler crane is working ...

To provide protection in the crane's work area, barriers MUST be erected in accessible areas: A. Within machinery housing C. Within maximum radius D. In landing area - ANSWER B.Within the equipment's rotating structure All of the following can cause a two-block condition EXCEPT: A. Exten...

The term "Superstructure or Upper works" refers to the area of the crane: - ANSWER Above the swing circle A crane must be level within _______% for the load chart ratings to be valid? - ANSWER 1% On what principle is crane stability based? - ANSWER Leverage

When making a multiple crane lift, it is important for the operator to understand that: - ANSWER The weight may increase if the other crane lands the load If a crane is not set-up level and the operator swings a load from the high side to the low side, the load radius will: - ANSWER Increase M...

Where is the best location for leveling a crane? - ANSWER Upperworks When determining the "gross load" the best method is: - ANSWER Get an accurate load weight and add the rigging. By order of hitch strength, which is the correct answer? - ANSWER Basket, vertical, choker

Crane configuration includes: A. reeving, boom length, counterweight, on outriggers, on rubbers, extensions or jibs stowed or mounted, off sets, wire rope type or construction B. hoist drum speeds, line pull, wire rope size and rigging C. load charts, LMI, axle weights and center of gravity ...

Splices in rall tracks shall have - ANSWER Smooth Joints Hydraulic systems should have their proper fluid level checked - ANSWER Daily If power fails during operations, the following shouldn't apply - ANSWER Do your best to finish moving load where it was designated to go

The crane is out of level, you release the swing break, the boom swings downhill, your: - ANSWER Load radius increases Blocking can be placed under the ends of tracks to: - ANSWER Increase the cranes stability when Operating over front or back What quadrant produces the least amount of ground ...

When hook-suspended personnel platforms are lifted with a telescopic boom crane, - ANSWER An anti two-block devise must be provided When using a telescopic boom crane equipped with an anti two-block device, which hydraulic functions are disabled when the device is activated? - ANSWER Hoist, exten...