



Study with the several resources on Docsity
Earn points by helping other students or get them with a premium plan
Prepare for your exams
Study with the several resources on Docsity
Earn points to download
Earn points by helping other students or get them with a premium plan
A wide range of topics related to crane and rigging operations, including lift planning, electrical hazards, crane capacities, multiple crane lifts, sling and rigging hardware, personnel lifting, and various safety considerations. It provides detailed information and answers to specific questions on these subjects, making it a valuable resource for crane operators, riggers, and safety professionals. The document delves into the methodical process of identifying and mitigating hazards, the importance of proper rigging and load calculations, and the regulatory requirements governing crane and rigging operations. By studying this document, readers can gain a comprehensive understanding of the best practices and critical factors to consider when planning and executing complex crane and rigging tasks, ensuring the safety and efficiency of these operations.
Typology: Exams
1 / 6
This page cannot be seen from the preview
Don't miss anything!




When should an approved lift plan be re-approved? - Answer D. If there is any deviation from the original lift plan. Electrical hazards in the lift area and swing direction and degree are factors to consider in preparing which portion of a lift plan? - Answer D. Crane Placement Capacities for crawler cranes that have outrigger extensions may not exceed ________.
When materials are being hoisted to an upper level, a tag line is used to: - Answer Help control the load Two cranes are lifting 100 tons. If crane A has 40% of the load, how much weight will crane B have on its hook? - Answer 120,000 lbs To confirm the rated capacity of a specific sling, consult the manufacturer's: - Answer Sling tag OSHA regulations require hook replacement if the opening exceeds what percentage of it's original throat opening? - Answer 15% At what percentage of increase in length should a chain sling be removed from service?
When is the most important reason rigging hardware should not be modified? - Answer It could negatively affect its capacity In the term D/d ratio, the d is an abbreviation for? - Answer Diameter A document that outlines weights, crane configuration and rigging requirements for a lift is? - Answer Lift plan When using a 1-inch wire rope sling in a vertical basket hitch lifting a 24 ft, 36 inch diameter pipe - Answer 36- What is an LMI - Answer Load moment indicator Location of electrical hazards on the job site should be documented on a: - Answer Lift plan When forming a lift plan, a primary concern for the person doing the rigging is: - Answer Capacity of rigging When using a wedge socket, the dead end of the rope is secured in the socket by the: - Answer Wedge When erecting or stowing a swing-away lattice extension, what should be used to control the movement of the extension? - Answer Tag line Planning for rigging is required: - Answer Only when lifting any load A lift plan must be completed by a: - Answer Supervisor Anchorage point for fall arrest for a single person must be able to hold? - Answer 5000 lbs. When of the following items are used for heavy rigging? - Answer Slings, shackles and spreader beam If the jacket of a synthetic round sling is damaged, that sling should be: - Answer removed from service immediately Which of the following is not a factor when making submerged lifts? - Answer water temperature When a tugger is mounted where the operator can NOT see the load, the signal person must use: - Answer Signals used for cranes Who can design a personnel platform? - Answer Qualified personnel
A one inch, 3 leg bridle wire rope sling rigged at 45° angle is good for 18 tons. The addition of a fourth leg will increase your capacity by: - Answer 0 lbs After any structural repair or modification, a personnel lifting platform shall be tested to what percentage of the platform rating? - Answer 150% All of the following statements about crane contact to power lines are true EXCEPT: - Answer The operator should leave the cab as quickly as possible Loads introduced into the machine or its components due to accelerating or decelerating force is called: - Answer Dynamic loading When lifting 100,000 lb, the main load block must be reeved with how many parts of line? - Answer 4 In a multiple-crane lift using an equalizer, the weight of the equalizer is considered part of the - Answer load weight To read a lattice boom crawler crane load/capacity chart, the operator must first know the - Answer boom length and load radius Equipment condition is categorized under which part of a lift plan? - Answer Weight The person in charge of planning a critical lift is the: - Answer Rigging superintedant During a critical lift, the only person(s) who may give signals to the crane operator is/are the: - Answer designated, qualified signalers Sling lengths need to be long enough to ensure that the horizontal angle is greater than: