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

Category 3 Non-Cab Operated Crane Safety Exam Questions With Complete Solutions A pillar-Jib crane with a capacity of 22,000 lbs. is a __________ crane. - ANSWER- Category 2 Which of the following tags prohibits operation of equipment when its operation could jeopardize the safety of personnel or endanger equipment? - ANSWER- Danger Tag Which of the following identify the two categories of crane lifts? - ANSWER- Complex and Non-Complex What is the weight of a 24 sq ft, 2 inch thick aluminum plate with a unit weight is of 15 lbs. per square foot of material per inch of thickness? - ANSWER- 720 lbs. When is it permissible for an operator to leave the controls of a crane while a load is suspended from the hook? - ANSWER- The operator shall remain at the controls at all times while a load is suspended from the hook. Sling angles affect the actual stress on each leg of the sling. Lowering the angle measured from the horizontal will: - ANSWER- increase the stress on each leg. What is the crane communications hand signal, pictured, with the arm vertical, forefinger pointing up, moving the hand in small horizontal circle? - ANSWER- Hoist What may cause the bridge to skew? - ANSWER- Wheel slippage on one side only because of a slippery track, or a heavy load suspended from one end of the bridge Which tag alerts operators to special instructions for operating the equipment? - ANSWER- Caution Tag Taking the slack out of rigging and starting to move a load or empty hook should be performed in first hoisting position or at the slowest possible speed. - ANSWER- True What should an operator do if he/she is not sure of the meaning of a signal? - ANSWER- Stop operation until the meaning of the signal is understood If an object has a volume of 200 cubic feet. and the unit weight is 150 lbs. per cubic foot, what is its weight? - ANSWER- 30,000 lbs. What is the bridge crane communication hand signal pictured, with the arm extended forward, hand open and slightly raised, making a pushing motion? - ANSWER- Bridge travel A floating crane with a capacity of 200,000lbs. is a ________________ crane. - ANSWER- Category 1 What is the category of a jib crane with a capacity of less than 20,000 pounds? - ANSWER- Category 3 An OET, Bridge crane with a capacity of 80,000lbs. is a ________________ crane. - ANSWER- Category 2 A commercial truck mounted crane with a capacity of 14,000 lbs. is a __________ crane. - ANSWER- category 4 What types of power does a Category 1 or 4 crane generally use and what is its source? - ANSWER- Electric or hydraulic power supplied by a diesel engine Load - ________ parts are those that restrain position or control the movement of the load. - ANSWER- controling A hook is what type of component? - ANSWER- Load-Bearing Part Hydraulic foot brakes are what type or group of components? - ANSWER- Load- Controlling Parts Load - _____________ parts are those that support the load. - ANSWER- bearing How is electrical current conveyed from the revolving portion of the crane to the lower crane structure? - ANSWER- Through the collector ring system Safety devices that provide protection for personnel and equipment are considered _____________ safety devices. - ANSWER- general Safety devices that affect the safe load lifting and handling capabilities of equipment are considered __________________ safety devices. - ANSWER- operational Which of the following does not affect the safe operation of the crane? - ANSWER- General Safety Devices A travel alarm is what type or group of components? - ANSWER- A travel alarm is what type or group of components? - ANSWER- General Safety Device During the walk around check you notice a loose bolt on the crane. You should: - ANSWER- Notify your supervisor of the deficiency. The crane Pre-use Check consists of: - ANSWER- A walk around visual check Performing a "No load" operational It is the operator's responsibility to report a deficiency to the Crane Department. - ANSWER- false Deficiencies are required to be reported by the end of the shift. - ANSWER- false If the upper limit switch is working correctly, there is no need to check the lower limit switch. - ANSWER- fasle Part of the no load operational check is to ensure the proper _________ of all controls. - ANSWER- function What is the most important reason to do a pre-use check? - ANSWER- To make sure the crane is safe to use. Documented checks are required for which of the following Category 3 cranes? - ANSWER- gantry wall bridge Place the steps listed in the correct order to check the Upper Limit Switch on a hoist. - ANSWER- Raise hoist two feet below switch & stop 2.Slowly raise hook block into switch 3.Ensure hoist stops with button depressed There must always be a minimum of _________ full wraps of wire rope on grooved drums. - ANSWER- 2 Part of the walk around check is to look for ___________. - ANSWER- deficiencies The minimum number of wraps of wire rope required on non-grooved drums is __________. - ANSWER- 3 What is the purpose of a hoist upper limit switch? - ANSWER- To prevent "two-blocking"