Advance Rigger Test Questions and Complete Solutions Graded A+

  What is meant by the term "two blocking"? a. Placing blocks under the outrigger beams. b. The load block contacts the boom point sheaves. c. Stacking loads on top of one another. d. The load strikes the boom while swinging. - Answer: b. The load block contacts the boom point sheaves. Lifting 20,000 lbs with a 2-leg bridle sling at a 30° horizontal sling angle, what is the force applied to each leg? a. 10,000 pounds b. 20,000 pounds c. 30,000 pounds d. 40,000 pounds - Answer: b. 20,000 pounds In multiple crane lifts using an equalizer beam, the weight of the beam should be considered: a. Part of the crane boom b. Part of the load weight c. Part of the crane weight d. A non-factor - Answer: b. Part of the load weight What is required if there is a deviation from the lift plan? a. The supervisor's permission b. The rigger's permission c. A new lift plan d. Mark ups on the existing lift plan - Answer: c. A new lift plan On level ground using skids and rollers, what percent of the weight of the load should yield the required line pull as a general rule of thumb? a. 2% b. 5% c. 10% d. 20% - Answer: b. 5% All of the following are results of unbalanced reeving of the hook block EXCEPT: a. Wear on the sheaves b. Torque on the boom c. Wear on the hook d. Wear on the wire rope - Answer: c. Wear on the hook Before a spreader bar or beams can be used they MUST have been: a. Repainted b. Used before c. Tested and approved d. Upgraded from the previous job - Answer: c. Tested and approved When materials are being hoisted to an upper level, a tag line is used to: a. Help raise the load b. Help control the load c. Stop the process d. Stop material from falling - Answer: b. 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? a. 60,000 lbs b. 80,000 lbs c. 120,000 lbs d. 240,000 lbs - Answer: a. 60,000 lbs To CONFIRM the rated capacity of a specific sling, consult the manufacturer's: a. Sling chart b. Website c. Sling tag d. Catalog - Answer: c. Sling tag OSHA regulations require hook replacement if the opening exceeds what percentage of its original throat opening? a. 10% b. 15% c. 18% d. 20% - Answer: b. 15% At what percentage of increase in length should a chain sling be removed from service? a. 2% b. 3% c. 4% d. 5% - Answer: d. 5% The methodical process that attempts to identify hazards and devise plans to overcome or eliminate hazards which may interfere with crane or rigging is called: a. Operators manual b. Maintenance manual c. Lift plan d. Site analysis - Answer: c. Lift plan What provides additional control of a load being lifted? a. Wire rope b. Tag lines c. Eye bolts d. Chain hoist - Answer: b. Tag lines When traveling on a rubber tire mobile crane, how should the boom be positioned? a. Over the side of the crane b. Lowered on the boom rest c. In a boom dolly d. In line with the direction of travel - Answer: d. In line with the direction of travel Before performing pick and carry operations with any mobile crane, it is important to: a. Check lights b. Verify the sling angle is less than 30 degrees c. Assure boom is facing down hill d. Refer to the manufacturer's capacity chart - Answer: d. Refer to the manufacturer's capacity chart According to ASME B30.5, a two crane lift is signaled by: a. The main crane operator b. The safety director c. One designated person d. The site engineer - Answer: c. One designated person What is the PRIMARY concern when working with high boom angles? a. Backward stability b. Forward stability c. Side stability d. Cross wind stability - Answer: a. Backward stability On multiple crane lifts, the load on each crane should NOT exceed what percentage of capacity? a. 90% b. 84% c. 80% d. 75% - Answer: d. 75% What are lifting lugs? a. Rigging materials used to clamp onto surfaces such as shell plates or sheet metal b. Pilot bits used to drill precision holes in plate metal c. Eyelets welded to a steel plate for lifting d. Devices used to align vertical plates at the weld - Answer: c. Eyelets welded to a steel plate for lifting The formula for determining stress on a snatch block performing a vertical lift is: line pull x block factor = block load. What must be done to calculate formula? a. Multiply mass x density, and then use the standard formula b. Multiply load weight x 25, and then use the standard formula c. Multiply the load weight by the coefficient of friction to determine line pull, and then use the standard formula d. Multiply mass x 25, and then use the standard formula - Answer: c. Multiply the load weight by the coefficient of friction to determine line pull, and then use the standard formula If both fists are placed in front of your body with your thumbs pointed outward, the crane operator should: a. Extend the boom sections b. Extend the outriggers c. Raise the boom d. Retract the boom sections - Answer: a. Extend the boom sections What is the MAXIMUM percent of the rated capacity of a crane that can be used to lift personnel? a. 40% b. 50% c. 60% d. 80% - Answer: b. 50% When does lightening present the greatest hazard to the crane and rigging personnel? a. When it is raining b. When thunder and lightning are apparent c. When the sky is cloudy d. When a weather warning is announced - Answer: b. When thunder and lightning are apparent What force would be required to move an object up an inclined plane compared to lifting it vertically? a. Same b. Less c. 1 ½ times more d. 2 times more - Answer: c. 1 ½ times more Personnel platforms shall NOT be used to lift: a. Employees b. Tools with employees c. Materials with employees d. Tools and materials without employees - Answer: d. Tools and materials without employees All of the following are reasons for stopping personnel lifting operations EXCEPT: a. The A-2-B (anti-two-block) malfunctions b. Dangerous weather is approaching c. Radio communication fails d. There are no tag lines - Answer: d. There are no tag lines When working in close quarters, the main concern is: a. Time b. Speed c. Safety d. Efficiency - Answer: c. Safety The point of any object's weight can be assumed to be concentrated at: a. High point b. Radius of gyration c. Center of gravity d. Center pin - Answer: c. Center of gravity In a spur-gear chain hoist with a two chain system, the endless chain is used to: a. Attach the load b. Attach the hoist to the anchorage point c. Raise and lower the load d. Wrap around a bulky load - Answer: c. Raise and lower the load In an emergency situation, what is the rigger's FIRST priority? a. To prevent damage to equipment b. To prevent injury or loss of life c. To properly handle the media d. To determine the responsible party - Answer: b. To prevent injury or loss of life All of the following conditions exert dynamic loading on a crane EXCEPT: a. Swinging b. Adverse operating conditions c. Static boom angle d. Traveling - Answer: c. Static boom angle Proper lead sheave placement as it relates to the hoisting drum location is: a. The drum to hoist faster b. Wires in rope to stay together c. Proper spooling of wire rope d. Precise hoisting - Answer: c. Proper spooling of wire rope The MOST important information to consider when planning a lift is: a. Weather b. Weight of the load c. Time of lift d. Available rigging gear - Answer: b. Weight of the load Prior to use, all new, altered, modified, or repaired rigging hardware shall be inspected by whom? a. An equipment manager b. A signal person c. A safety coordinator d. A designated person - Answer: d. A designated person An unsafe condition that riggers should be aware of when dealing with a multi part load block is: a. Decreased lifting capacity b. Static load c. Twisting multi part lines d. Added crane gross capacity - Answer: c. Twisting multi part lines 37. Most cranes in duty cycle operation require a: a. Load line deduction b. Critical lift plan c. Load test d. Deduction of rated capacity - Answer: c. Load test The only personnel allowed to have their body parts outside of the suspended personnel platform during hoisting and lowering operations are: a. Master riggers b. Qualified persons c. Signal persons d. Craft workers - Answer: c. Signal persons What is the most important reason rigging hardware should NOT be modified? a. It makes it hard to know who is responsible for the gear b. It could negatively affect its capacity c. It would require load tests d. It could be expensive and time consuming - Answer: b. It could negatively affect its capacity In the term (D/d ratio) the d is an abbreviation for: a. Distribution b. Density c. Diameter d. Displacement - Answer: c. Diameter A document that outlines weights, crane configuration and rigging requirements for a lift is called a: a. Lift work order b. Bill of lading c. Lift plan d. Lift inspection - Answer: c. Lift plan When using a 1-inch wire rope sling in a vertical basket hitch lifting a 24-foot long, 36-inch diameter pipe, a. 12 to 1 b. 24 to 1 c. 36 to 1 d. 48 to 1 - Answer: c. 36 to 1 What is an LMI? a. Load movement identifier b. Load moment indicator c. Limit movement indicator d. Lift measure indicator - Answer: b. Load moment indicator Location of electrical hazards on the job site should be documented on a: a. Load chart b. Lift plan c. MSDS d. RFI - Answer: b. Lift plan When forming a lift plan, a PRIMARY concern for the person doing the rigging is: a. Type of crane b. Length of jib c. Weight of load block d. Capacity of rigging - Answer: d. Capacity of rigging When using a wedge socket, the dead end of the rope is secured in the socket by the: a. Live end b. Pin c. Wedge d. Socket - Answer: c. Wedge When erecting or stowing a swing-away lattice extension, what should be used to control the movement of the extension? a. Tag line b. Auxiliary crane c. Come-along d. Nylon round sling - Answer: a. Tag line Planning for rigging is required: a. Only when required under job site rules b. Only when specified under OSHA rules c. Only when lifting over 25 tons d. Only when lifting any load - Answer: d. Only when lifting any load A lift plan MUST be completed by a: a. Competent person b. Supervisor c. Corporate officer d. Shift foreman - Answer: b. Supervisor Anchorage points for fall arrest for a single person MUST be able to hold: a. 4000 lbs b. 5000 lbs c. 3000 lbs d. 500 lbs - Answer: b. 5000 lbs Which of the following items are used for heavy rigging? a. Rope and chain link b. Slings, shackles, and spreader beam c. Chain, rope, bolts, and nuts d. Lifting eye and rope - Answer: b. Slings, shackles, and spreader beam If the jacket of a synthetic round sling is damaged, that sling should be: a. Used until further damage occurs b. De-rated to 50% of its rated capacity c. Removed from service immediately d. Duct taped to prevent further damage - Answer: c. Removed from service immediately Which of the following is NOT a factor when making submerged lifts? a. Ground stability b. Wave action c. Buoyancy d. Water temperature - Answer: d. Water temperature When a tugger is mounted where the operator can NOT see the load, the signal person MUST use: a. Tugger type signals b. Overhead crane signals c. Aggressive signals d. Signals used for cranes - Answer: d. Signals used for cranes Who can design a personnel platform? a. A qualified personnel b. The general contractor c. A site supervisor d. The rigger - Answer: a. A qualified personnel A one-inch, 3-leg bridle wire rope sling, rigged at a 45° angle, is good for 18 tons. The addition of a fourth leg will increase your capacity by: a. 0 lbs b. 6,000 lbs c. 16,000 lbs d. 18,000 lbs - Answer: a. 0 lbs After any structural repair or modification, a personnel lifting platform shall be tested to what percentage of the platform rating? a. 100% b. 125% c. 150% d. 200% - Answer: c. 150% All of the following statements about crane contact with power lines are TRUE EXCEPT: a. The operator must assume lines are energized b. The operator should leave the cab as quickly as possible c. The operator should try to reverse the movement of the cab to disentangle from the power lines d. If jumping is necessary, the operator should land with both feet together - Answer: b. 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: a. Running loading b. Cross point loading c. Dynamic loading d. Un-stabilized loading - Answer: c. Dynamic loading Using the sling chart provided, what is the rated capacity of a ½ inch sling in a basket hitch with sling legs 90 degrees? a. 6,200 lbs b. 7,600 lbs c. 8,600 lbs d. 8,800 lbs - Answer: a. 6,200 lbs When lifting 100,000 pounds, the main load block must be reeved with how many parts of line? a. 1 b. 2 c. 3 d. 4 - Answer: d. 4 What standard hand signal is being communicated in the illustration? a. Swing b. Travel c. Travel (one track) d. Travel (both tracks) - Answer: c. Travel (one track) What standard hand signal is being communicated in the illustration? a. Hoist b. Raise the boom c. Use main hoist d. Use whip line - Answer: d. Use whip line Using the chart, how many parts of line are needed to lift a load weighing 265,000 pounds? a. 8 b. 9 c. 10 d. 11 - Answer: b. 9 According to the table, what is the MINIMUM clearance a crane in operation can be from a 250 (kv) energized power line? a. 10 feet b. 15 feet c. 20 feet d. 35 feet - Answer: c. 20 feet