Cranes capacity - Study guides, Class notes & Summaries

The load radius as shown on the capacity chart is the distance from the center of rotation to the centerline of the vertical host line with: - The rated load suspended. If the jib angle to ground is changed from 50 degrees to 40 degrees, this would affect the capacity of the crane how? - Capacity will decrease. Load capacity charts are based on 75% of tipping for crawler cranes without out riggers. For wheel mounted cranes, using outriggers fully extended, capacities are based on what perce...

NCCCO CORE EXAM QUESTIONS WITH COMPLETE SOLUTIONS 2024/2025 Before leveling a mobile crane on outriggers, an operator should ensure: - Correct 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? - Correct Answer Keeping 90 degree angle between cylinder rod and pad What is the primary purpose fir a rooster sheave or auxiliary boom point sheave? - Correct Answer Separate the boo...

What could happen when the boom sections on an individually controlled telescopic section are not extended evenly? a) The longer sections could be overloaded. b) The capacity of the crane is increased. c) The shorter sections could be overloaded. d) It will not make a difference. a) The longer sections could be overloaded. While performing the shift inspection, you find a hoist wire rope with a kink in it, what would you do? a) Document it on the shift inspection. b) Stop opera...

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 What would be the effect of moving the tipping axis closer to the cranes center of gravity? - ANSWER Reduced stability Which of the following matches the appropriate load chart to a particular crane? - ANSWER Serial number Wh...

NEBOSH NCC1, Top Exam Questions and answers, 100% Accurate. Graded A+ Construction issues - -Transitory nature of workers Temporary nature of construction activities and the constantly changing workplace Time pressures from clients and principal contractors Weather conditions Levels of numeracy and literacy of workers Non-English speaking workers High risk areas for injuries in construction - -Falls from height Slips, trips and falls Being struck by falling/moving objects Manual ...

What are the four different types of crane signals? Hand Voice Audible New 2. The shaded area on a load chart indicates _______? A structural chart 3. The minimum distance to a power line of unknown voltage is ? 50' 4. When hoisting personnel and have known voltage, can you use Table A and get closer than 20'? Never! 5. What is the minimum tale swing clearance requirement 2' 6. What kind of rigger is required for A/D? Qualified Rigger 7. Signal training is now required i...

Mobile Crane Questions Test 2 (2023/ 2024 Update) Questions and Verified Answers| 100% Correct 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, the load radius will: - ANSWER Increase. Most crane manufacturers reduce lo...

NCCCO Core Practice Exam (2023/ 2024 Update) Questions and 100% Correct Verified Answers| Grade A Q: From which two points should the boom be measured? Answer: From the boom hinge pins to the center of the boom tip sheave Q: What is the preferred method of installing wire rope from a reel onto a hoist drum? Answer: The rope runs from the top of the reel to the top of the drum Q: Over which quadrant are truck crane capacities usually greater? Answer: Over the rear. ...

ASME B30.5 - Mobile and Locomotive cranes, all types ASME B30.3 - Tower Cranes ASME B30.23 - Personel Lifting Regs OSHA 29 CFR 1926.1400 Series - Cranes & Derrick's used in Construction regs. Rotation Resistant Wire Rope - 2 randomly broken wires in 6 diameters. 4 randomly broken wires in 30 diameters. Safety factor 5.0 Safety factor personel lifts 10-1 ASME B30.9 - Slings Personel Platforms ASME B30.23 - Maximum Wind 15mph Cranes capacity not exceed 50% Riggi...

NCCCO Overhead Crane Exam (2023/ 2024) Questions and 100% Correct Verified Answers| Grade A Q: According to OSHA, the rated capacity of all overhead cranes shall be? Answer: clearly marked on the side of the crane Q: When attaching spreaders to any load, you must keep in mind of what? Answer: the lower the spreader angle the greater the tension Q: What is the order of hitch strength? Answer: basket, vertical, choker Q: According to OSHA, the maximum hook...