SOLUTIONSLATEST - Hydraulic systems should have their proper flui...

NCCCO tower crane flashcards COMPLETE

QUESTIONS AND

SOLUTIONS(LATEST

UPDATE )

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 If load is undetermined who is to find out if load weight does not exceed crane rating at radius at which the load is to be lifted - ANSWER Person responsible for lift Where should climbing instructions be kept - ANSWER ON Site 1 / 3

Chain slings are required to be - ANSWER ID tagged Welding on loads suspended by the crane can only be done if the load has - ANSWER Insulated slings How much does an average cubic yard of concrete weight - ANSWER 4,000 lbs Main power switch for tower crane is - ANSWER At base of crane Items not listed in the frequent inspection checklist are - ANSWER Hydraulic pumps and valves for excessive wear or damage When is it necessary to determine that there is no practical alternative way to perform the needed work or to gain access to the area - ANSWER Personnel Lift Each series of voice signals shall contain three elements stated in the following order - ANSWER Function and Direction - Distance and speed - Function stop When lifting personnel communication shall be maintained between three of the next four - ANSWER Person(s) being lifted - Operator - Signal person The condition when the tower load block or hook assembly comes in contact with the upper - ANSWER Two-blocking 2 / 3

Load bearing members of the climbing and support system shall be inspected before each - ANSWER Climbing operation Where shall a wind velocity indicating device be mounted - ANSWER At or near the top of crane According to ASME B30.3, the prohibited zone for power lines that are 60kV is - ANSWER 15ft. ASME 3-3.3.4.3(1) Table 1 According to ASMA 30.3, load hoist rotation resistant wire rope has a design factor of - ANSWER 5 to 1 ASME 3-1.5.5(b) According to ASME B30.3, when lifting a suspended personnel platform the design factor for the rigging hardware is - ANSWER 5 to 1 ASME 3-3.2.2(b)(3) According to ASME B30.3, Load hoist ropes that are not rotation must have a design factor of - ANSWER 5 to 1 ASME 3-1.5.5(b) All climbing operations shall be performed under the supervision of - ANSWER Qualified person When cranes are erected, load limiting devices shall be tested for proper setting and operation - ANSWER Before crane is placed in service Hooks shall be equipped with latches unless the application makes the use of the latch - ANSWER Impractical

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