Category 3 Non-Cab Operated Crane Safety Exam Questions With Complete Solutions

Category 3 Non-Cab Operated Crane Safety Exam Questions With Complete Solutions Bridge cranes with rated capacities of 20,000 lbs. or greater are classified as ______ cranes - ANSWER- Category 2 The expiration date that is of particular importance to crane operators is - ANSWERThe certification expiration date of the crane Who is primarily responsible for evaluating a Crane Operators physical and emotional fitness? - ANSWER- crane operator A monorail hoist with less than 20,000 lbs. capacity is a ________________ crane. - ANSWER- Category 3 Components that control, restrain, or position the load, and upon failure would cause dropping, shifting or uncontrolled movement of the loads are ____________. - ANSWER- load controlling parts All of the following require a license to operate EXCEPT a: - ANSWER- Non-cab operated category 3-bridge crane What is two-blocking and why is two-blocking dangerous? - ANSWER- Two-blocking occurs when the hook block comes in contact with the upper sheave block during hoisting of the hook. It is dangerous because it could result in damage to the crane, parting of the hoist lines, and dropping the load. The formula for determining the area of a triangular shaped object is: - ANSWER- Base x Height divided by 2 When are operators required to perform a pre-use check of the crane? - ANSWERPrior to the first use of the crane each day Regardless of the method of communication used all crane signals must be ____________________. - ANSWER- clear Synthetic web slings should NOT be used in areas where temperatures exceed 194 degrees Fahrenheit. - ANSWER- True If an object is 6 feet long, 5 feet wide, and 4 feet high, what is the volume of the object? - ANSWER- 120 cubic feet Is it necessary for the operator to see the load or work area? - ANSWER- Not if there is a designated signal person who is in control of the lift and is in view of the operator, or if the signal giver is in constant radio contact with the operator. What is "inching"? - ANSWER- Performing a motion very slowly, a little at a time The majority of crane accidents are attributed to which of the following? - ANSWERPersonnel error Crane operators at naval activities may be required to operate various types of cranes for which they hold a license. Which of the following can best assure operator proficiency and safety? - ANSWER- Be familiarized by a qualified person before operating the crane for the first time Which of the following is NOT an acceptable method of communication between the signal person and the crane operator? - ANSWER- Signal Flags Which of the following is used with a physical locking device placed at the energy source? - ANSWER- Lockout Tag Which of the following is considered to be the best way the operator can ensure the crane is safe to operate on any given day? - ANSWER- Perform Daily Pre-use Checks When crane accidents happen, you must do all of the following EXCEPT: - ANSWERContinue to operate the crane until all lifts are completed Components that provide protection for operation and maintenance personnel working on or in the path of cranes. - ANSWER- General Safety Devices If the crane operator and the rigger in charge disagree on whether or not a load is safe to lift the operator should: - ANSWER- not operates the crane until contacting the supervisor to resolve the issue. Components that support the load, and upon failure would cause dropping or uncontrolled lowering of the load are ____________. - ANSWER- load bearing parts What is meant by "skewing"? - ANSWER- Where one end of the bridge gets ahead of the other end, frequently causing binding on the rails What are the principal parts of an overhead traveling crane? - ANSWER- Bridge girders, end trucks, trolley, and operator's cab or pendant control Why shall sudden starts and stops of the bridge and trolley be avoided? - ANSWERSudden starts and stops could cause the trolley or bridge to derail Select the proper method of landing a load. - ANSWER- Lower the load slowly, stop a few inches from the landing point, then slowly lower the rest of the way. The crane operator must check the certification information on the crane for________ before operating the crane. - ANSWER- certification expiration date, crane ID, and certified capacity What is the bridge crane communications hand signal pictured, with the palms up, fingers closed; thumb pointing in the direction of motion, and jerking horizontally? - ANSWER- Trolley travel At what point during a lift may trolley or bridge travel be started? - ANSWER- When the tracks are clear and the load is high enough off the ground to pass over obstacles safely What is the crane communications hand signal pictured, with the arm extended downward, forefinger pointing down, and moving the hand in a small horizontal circle? - ANSWER- Lower Why should the hook be positioned directly over the load when attaching the load? - ANSWER- To avoid side loading and dragging the load as it is picked up Bridge cranes with rated capacities of less than 20,000 lbs. are classified as ______ cranes. - ANSWER- Category 3