NCCCO Telescopic Boom Crane Exam Questions and Answers | Latest Edition

NCCCO Telescopic Boom Crane Exam Questions and Answers | Latest Edition 1. According to OSHA 1926 subpart cc, who determines if a crane can be used for pick and carry operations? - ANSWER The manufacturer 2. According to OSHA 1926 subpart cc, what function does the holding valve on a vertical outrigger jack perform? - ANSWER Hold pressure in the vertical ram if a hydraulic connection fails 3. When a crane's telescopic boom sections are required to be extended equally, and the are not, the - ANSWER Longest section can be overloaded 4. When using blocking under the outrigger floats/pads, the operator should make sure the blocking is - ANSWER Sufficient to support/stabilize the crane 5. What is the most stable quadrant of operation for a carry deck crane? - ANSWER Over the front 6. When a boom extension is in the stowed position, it is - ANSWER Pinned to the boom base section 7. When a telescopic boom crane is engaged in a pick-and-carry operation, the rated tipping capacity is based on what percentage of the total tipping capacity? - ANSWER 75% 8. According to OSHA 1926 sub-part cc, all telescopic boom cranes must be equipped with - ANSWER A boom angle indicator 9. Jib capacities are based on: - ANSWER structural strength 10.When lifting over a corner, ground pressure generated by the crane can approach a weight that is - ANSWER equal to the weight of the crane and suspended load 11.What is the most unstable quadrant of operation on a boom truck? - ANSWER Over the side 12.According to OSHA 1926 subpart cc, when extending outriggers from the crane's upper structure, the operator shall - ANSWER Make visual contact or post a signal person 13.A luffing jib is - ANSWER Raised or lowered independent of the main boom 14.When operating a rough terrain crane, what is the most stable quadrant of operation? - ANSWER Front 15.When operating a telescopic boom truck crane, what is the most stable quadrant of operation? - ANSWER Rear 16.Capacities of telescopic boom truck cranes are based on what percentage of tipping? - ANSWER 85% 17.When working on rubber, a rough terrain crane's capacity is based on what percentage of tipping? - ANSWER 75% 18.With the boom extension mounted on the boom tip, the main boom rating must be reduced to compensate for the boom extension's - ANSWER Effective weight 19.According to OSHA 1926.1433, which of the following must be on the crane? A. A fire extinguisher B. Anti two-block warning system C. Battery disconnect switch D. Vehicle identification number - ANSWER A. A fire extinguisher 20.A carrier-mounted crane that is set up on outriggers should have the tires on the carrier - ANSWER Off the supporting surface 21.When a rough terrain crane is working on tires, backward tipping is most likely to occur when the unloaded boom is position over the - ANSWER Side at short radius 22.When performing pick and carry operations with a rough terrain crane, you should keep the load - ANSWER Positioned over the front of the carrier 23.In which outrigger configuration would a crane be the most susceptible to tipping from a rapidly swinging load? - ANSWER Outriggers up and in 24.What is the purpose of the boom length indicator? - ANSWER Indicates the extended length of the boom 25.When making lifts on outriggers, the maximum ground-bearing pressure occurs when the load is over - ANSWER A corner 26.An erected telescopic boom extension becomes a capacity reduction when it is - ANSWER Not used to make the lift 27.The term luffing jib refers to an attachment that - ANSWER Can change radius independent of the main boom 28.What item is not permissible to be removed from a carrydeck crane? - ANSWER Boom extension 29.While performing a pick-and-carry operation with a telescopic boom crane, what precaution should be taken? - ANSWER Have the boom in line with the direction of travel 30.When are outrigger floats/pads required to be fastened to the outrigger? - ANSWER When the crane is set up for a lift 31.When operating a telescopic boom crane, two-blocking can be caused by - ANSWER Extending the boom without lowering the load block 32.A crane is operating with a long boom, on outriggers, on uneven ground. Under these conditions it is important to - ANSWER Block under the float or pad to achieve a 90 degree angle between the cylinder rod and the float or pad 33.What is the purpose of a boom length indicator? - ANSWER Indicates the extended length of boom 34.According to OSHA 1926 subpart cc, floats/pads must be fastened to the outrigger/stabilizers when - ANSWER They are in use 35.A crane's jib is offset 15 degrees versus it's original 0 degree offset and the boom angle remains unchanged, the load radius will - ANSWER Increase 36.When leaving telescopic boom cranes unattended overnight or for longer periods, the boom should be - ANSWER Fully retracted and stowed 37.On a telescopic boom truck crane that has all 5 outriggers properly positioned, the working area diagram will indicate the "over front" area is - ANSWER Determined by the crane manufacturer 38.When hook-suspended personnel platforms are lifted with a telescopic boom crane, - ANSWER An anti two-block devise must be provided 39.When using a telescopic boom crane equipped with an anti two-block device, which hydraulic functions are disabled when the device is activated? - ANSWER Hoist, extend the boom, boom down 40.The safest maximum speed for a telescopic boom crane performing pickand-carry operations is - ANSWER The manufacturer's recommended speed limit 41.What is the primary concern when operating rough terrain cranes on rubber at high boom angles? - ANSWER Backward stabilit