NCCCO TEST 2 Questions with Complete Solutions

NCCCO TEST 2 Questions with Complete Solutions 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 Most crane manufacturers reduce load capacity for duty-cycle operations because: - Answer-Side loading forces may occur On who's recommendations should a preventative maintenance program be set-up? - Answer-Crane manufacturer What is the standard rope used on most cranes? - Answer-Right regular lay The proper way to calibrate a boom angle indicator is: - Answer-Using a level, raise the boom to horizontal and set the indicator at 0 degree. The red area of an instrument gauge means: - Answer-A dangerous condition exists The best way to keep people from being injured from the counterweight of the crane is to: - Answer-Fence or barricade the swing area of the crane Only approved attachments or extra counterweights made by the manufacturer should be placed on the rear of the crane because: - Answer-They could cause a backward stability problem What is the first thing an operator should do before going under a low pipe rack? - Answer-Post a signalperson to check clearance When working on outriggers, the only time they should be less than fully extended is when: - Answer-There is a load chart for this operation When lifting loads from the water, the operator should be aware that: - Answer-The load will increase when you pick the load from the water What is require to be on a Hydraulic Crane in order for it to lift a man basket? - Answer- Boom length indicator When working on rubber, cranes are rated at what percentage of tipping? - Answer-75% When using cable or nylon spreaders, it is important to remember: - Answer-The lower the spreader angle the greater the tension Backward stability of a crane is tested with: - Answer-Basic boom at maximum angle with maximum load If not listed in the load/capacity charts for a hydraulic crane, and you are in between boom lengths, you should: - Answer-Use the next longer length or shorter with less capacity When a spinning load presents a danger, the operator should: - Answer-Use a tagline The jib capacity is 8 tons and the ball weighs 900 lbs. What is the heaviest load that can be lifted safely? - Answer-15,100 Parts of line means: - Answer-The number of lines running thru the load block If a jib is erected but not being used, it is treated as a deduction from the cranes: - Answer-Gross capacity What is the maximum number of broken wires before replacement on a standing wire rope? - Answer-2 What are most jibs capacities based on? - Answer-Structural On the majority of conventional cranes, the power is transferred to the torque converter by a: - Answer-Master clutch During disassembly of a long boom, the hog lines are connected at the maximum cantilever point and the boom is slightly lifted off the ground. Which pins are to be removed next? - Answer-The bottom pins ahead of the cantilever point When using load/capacity charts, what does the term 'A jib angle to ground' refer to? - Answer-Main boom angle minus the jibs offset A truck crane, with outriggers properly set, is rated at what percentage of its tipping capacity? - Answer-85% On a truck crane with the outriggers extended and set, and tires touching the ground, the operator should refer to what load chart? - Answer-On rubber chart When testing a man basket how long must the test pick be maintained? - Answer-5 minutes What is the minimum pitch diameter for load hoisting sheaves? - Answer-Not less than 18 times rope diameter What is the minimum pitch diameter for boom hoisting sheaves? - Answer-Not less than 15 times rope diameter What is the minimum pitch diameter for load block sheaves? - Answer-Not less than 16 times rope diameter Seat belts shall be provided on what cranes? - Answer-Cherry Pickers Power is transferred to the swing through a - Answer-Pinion gear LMIs shall be installed on cranes with a lifting capacity of: - Answer-3 ton and above When lifting personnel, the cranes hook must be the type that: - Answer-can be closed and locked When working over water with a man basket, are the people inside required to wear a belt/harness? - Answer-No harness or belt required What is the maximum advisable wind speed for crane operation? - Answer-30 mph mobile