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NCCCO Telescopic Boom Crane- Swing Cab(TLL) Latest 2023-2024 Questions And Answers Graded (A+).docx
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a. 1 broken wire in 6 rope diameters b. 2 broken wires in 30 rope diameters c. 3 broken wires in one strand in one lay d. 2 broken wires in 6 rope diameters - ansd.
a. It increases b. It decreases by a third c. It remains the same d. It decreases by half - ansa.
A long boom crane at a short radius and out of level by 300 can see a reduction incapacity by as much as: - ans50% A multi crane lift shall require - ansCritical lift plan, reduction of gross capacity by 25% and one designated person in charge. A signal person shall be ________________. - ansdesignated person, tested According to ANSI B30.5, hand signal chart shall be posted where? - ansOn the job site According to ASME B30.5, what are the minimal requirements to meet crane operatorqualifications? - ansPhysical, Written Test, Practical Test An anti-two-block device can be used _________________. - ansto test the LMI Crane stability is based on - anslever principle Cranes should be load tested when? - ansAfter modifications During crane assembly, the counter weight should be installed when? - ansBefore raising the boom How should wire rope be inspected during a frequent inspection? - ansVisually Load hoist sheaves and boom tip sheave shall have pitch diameters not less than times the nominal diameter of the rope used. - ans Not extending telescoping boom sections equally; what may occur? - ansLonger section collapse Per ANSI B30.5, when in transit under power lines of 350 KV the minimum clearance is? - ans16 FT Per ANSI B30.5, when operating near high voltage line of 250 KV the minimum clearance is ___________________. - ans20 FT The boom angle is the angle between ___________________. - ansthe ground and centerline of the boom, between sheaves and heel pins The deflection of a boom will cause the load to __________________________. - ansincrease the radius
The load chart is matched to the crane by: - ansSerial number The load hoist drum flange shall be _________________. - ans1/2 in. or higher over the top layer of rope Three short audible signals mean - ansback-up Upon completion of assembly of the crane, what must be done? - ansAn inspection to ensure that manufacturer specifications are met What are the broken wire removal requirements for rotation resistant wire rope? - ans broken wires in 6 diameters or 4 in 30 diameters What are the requirements to be a crane inspector? - ansSame as operator What hand signal must be obeyed at all times? - ansStop What is the design factor for rotation resistant rope used as a hoist line? - ans5: What is the object of rope lubrication? - ansA and B What is the OSHA standard for cranes in construction industry? - ans29 CFR-1926. Subpart CC What percentage of the crane chart is considered a critical lift? - ans75% What shall be in the operator's cab during crane operations? - ansLoad charts What standard method hand signal is being illustrated? a. Boom up b. Boom down c. Retract boom d. Hoist - ansc. When can a crane be side loaded? - ansWith a freely suspended load When can the operator leave the crane? - ansAfter securing the crane When doing a pick and carry, tire pressure must - ansmeet manufacturer's specifications
b. Over the rear c. Over the right side d. Over the left side - ansa.
a. Be dragged out b. Be lifted as normal c. Not be lifted by crane d. Handled with extra care - ansc.
c. Over the corner d. over the left side - ansc.