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NCCCO MOBILE CRANE FINAL
EXAM 200 QUESTIONS WITH
VERIFIED SOLUTIONS ALREADY
GRADED A+ LATEST VERSION
"What is the definition of "operating radius?" a. The distance from the base of the boom to the center of the load b. The distance from the front of the crane to the center of gravity of the load c. The distance from the center of rotation of the crane to the center of the load d. The distance from the center of rotation of the crane to the center of gravity of the load - CORRECT ANSWER=> d." "What applies to the capacities below the bold line shown on a load chart? a. They are based on the structural strength of the crane b. They must not be used c. They are based on the stability of the crane d. They should only be used if the crane is set up on outriggers - CORRECT ANSWER=> c." "In which quadrant are rough terrain crane capacities generally greater? a. Over the front b. Over the rear c. Over the right side d. Over the left side - CORRECT ANSWER=> a." "According to federal requirements, under what conditions is it okay for a person to ride the headache ball? a. When there is no other way to gain access b. When the lift has been approved by an engineer c. When other means would be more dangerous d. It is never okay - CORRECT ANSWER=> d."
"14. By what percentage do most manufacturers require a crane's load chart capacity to be reduced by for duty cycle operations such as high-volume concrete placement? a. 10%. b. 15%. c. 20%. d. 30%. - CORRECT ANSWER=> c." "15. From which two points should the boom be measured? a. From the base of the boom to the center of the boom tip sheave b. From the boom hinge pins to the boom tip c. From the boom hinge pins to the center of the boom tip sheaved. d. From the base of the boom to the boom tip - CORRECT ANSWER=> c." "16. What is the preferred method of installing wire rope from a reel onto a hoist drum? a. The rope runs from the top of the reel to the bottom of the drum b. The rope runs from the bottom of the reel to the top of the drum c. The rope runs from the top of the reel to the top of the drum d. There is no preferred method - CORRECT ANSWER=> c." "17. Over which quadrant are truck crane capacities usually greater? a. Over the front. b. Over the rear. c. Over the front right outrigger. d. Over the side. - CORRECT ANSWER=> b." "18. According to OSHA, which accessible area of an operating crane must always be barricaded? a. The swing radius of the crane b. The carbody or chassis c. The swing radius of the rear of the rotating superstructure d. The distance between the car body or chassis and the boom tip - CORRECT ANSWER=> c." "19. What is the OSHA regulation governing cranes in construction? a. 1910. b. 1926. c. 1926. d. 1910.184 - CORRECT ANSWER=> b."
"26. When may blocking (cribbing) be placed under outrigger beams? a. When beams cannot be extended all the way out b. To increase capacity c. To improve stability d. Never - CORRECT ANSWER=> d." "27. What is the result of placing timber blocking under the tips of the tracks on a crawler crane? a. Decreases the permitted capacity of the crane b. Makes the crane more stable c. Reduces the capacity of the crane d. Makes the crane less stable - CORRECT ANSWER=> b." "28. According to ASME, what percentage of the manufacturer's crane rating must not be exceeded if a load test is done on a repaired crane? a. 110% b. 100% c. 85% d. 75% - CORRECT ANSWER=> b." "29. Where is the tipping axis of a crawler crane located? a. It is always at the centerline of the idler or sprocket b. It depends if the idler or sprocket are in line or offset from the track rollers c. It is through the centerline of the crane cab d. It is through the boom butt section - CORRECT ANSWER=> b." "30. What should be done with materials placed under overhead energized power lines? a. Be dragged out b. Be lifted as normal c. Not be lifted by crane d. Handled with extra care - CORRECT ANSWER=> c." "What standard method hand signal is being illustrated? a. Boom up b. Boom down c. Retract boom d. Hoist - CORRECT ANSWER=> c."
"32. Where should the crane's outrigger pads or tracks be placed when working at ground floor level near a cellar wall? a. As close as possible to the wall b. At least as far back as the depth of the wall below ground c. At a distance at least half the depth of the cellar wall below ground d. Anywhere, since the wall is unaffected by the weight of the crane - CORRECT ANSWER=> b." "33. How should the wheels of a crane be positioned when it is set up for working on outriggers? a. Just touching the ground b. As high as possible off the ground c. Just high enough off the ground to relieve the tires of crane weight d. Firmly on the ground to support the crane - CORRECT ANSWER=> c." "34. What happens to ground bearing pressure if you move a crawler crane from soft ground to harder ground? a. It increases b. It decreases by a third c. It remains the same d. It decreases by half - CORRECT ANSWER=> a." "35. When may a swivel be used with rotation resistant wire rope? a. Always b. Never c. If the rope manufacturer approves d. If the operator decides it's OK - CORRECT ANSWER=> c." "36. What should you do on pick and carry operations? a. Keep the boom as short as possible b. Keep the load as high above the ground as possible c. Ensure the load is as far from the carrier/carbody as possible d. Use maximum boom length - CORRECT ANSWER=> a." "37. What boom position would cause the greatest ground pressure when lifting with crawler cranes? a. Over the right side b. Over the end
"43. When is it okay to temporarily bypass a crane's overload warning system? a. When a supervisor tells you to b. When the load to be lifted exceeds the capacity in the chart c. Never d. During assembly/disassembly operations - CORRECT ANSWER=> d." "44. What happens to the leverage of the load on a crane as the boom is being lowered? a. It increases b. It decreases c. It stays the same d. It depends on the weight of the load being lifted - CORRECT ANSWER=> a." "45. Where are the Standard Method hand signals found? a. OSHA Subpart CC b. OSHA 1926. c. ASME B30.R d. They are determined by each manufacturer - CORRECT ANSWER=> a." "46. What should an operator do if a crane's load moment indicator (LMI) malfunctions? a. Cease crane operations and report the condition to the supervisor b. Turn it off and continue as if the LMI were not installed c. Make mathematical allowances for any error d. Attempt to repair the fault - CORRECT ANSWER=> a." "1. Where must the operator's manual be kept during crane operations? a. The operator's manual must be kept in a location that is readily available b. The operator's manual must be kept in the cab at all times c. The operator's manual must be kept in the dispatch office d. The operator's manual must be kept in a secure place - CORRECT ANSWER=> b." "2. According to ASME B30.5, what are the minimal requirements to meet crane operator qualifications? a. High School Diploma b. CDL with on the job training c. Physical, Written Test, Practical Test d. CDL physical, employers written permission - CORRECT ANSWER=> c."
"3. What hand signal must be obeyed at all times? a. Swing b. Clog-everything c. Stop d. Hoist Slow - CORRECT ANSWER=> c." "4. When removing pins or bolts from a boom assembly, workers shall remain a. clear of sledge hammers b. out from under the boom c. on top of boom holding pendants d. in sight of the operator - CORRECT ANSWER=> b." "5. When may a crane be overloaded? a. When the supervisor says it's OK b. Never c. When testing the crane d. When proof testing a man basket - CORRECT ANSWER=> c." "6. When can the operator leave the crane? a. Break time b. End of the shift c. After securing the crane d. When a storm is coming - CORRECT ANSWER=> b." "7. When can a crane be side loaded? a. Dragging a load b. With a freely suspended load c. Never d. Pile-driving - CORRECT ANSWER=> b." "8. The deflection of a boom will cause the load to? a. side load the boom b.decrfrease the radius c. increase the radius d. have no effect - CORRECT ANSWER=> c." "9. When should tag lines be used? a. Always
"When may a crane be overloaded? - CORRECT ANSWER=> Never" "When can the operator leave the crane? - CORRECT ANSWER=> After securing the crane" "When can a crane be side loaded? - CORRECT ANSWER=> With a freely suspended load" "The deflection of a boom will cause the load to __________________________. - CORRECT ANSWER=> increase the radius" "When should tag lines be used? - CORRECT ANSWER=> When the rotation of the load becomes hazardous" "What shall be in the operator's cab during crane operations? - CORRECT ANSWER=> Load charts" "Which of the following is considered duty-cycle work? - CORRECT ANSWER=> Clam-shell digging" "When doing duty cycle work, the load chart must be reduced by how much? - CORRECT ANSWER=> 20%" "Which components are not parts of the boom? - CORRECT ANSWER=> Heel pins" "The boom angle is the angle between ___________________. - CORRECT ANSWER=> the ground and centerline of the boom, between sheaves and heel pins" "Three short audible signals mean - CORRECT ANSWER=> back-up" "According to ANSI B30.5, hand signal chart shall be posted where? - CORRECT ANSWER=> On the job site" "A signal person shall be ________________. - CORRECT ANSWER=> designated person, tested" "An anti-two-block device can be used _________________. - CORRECT ANSWER=> to test the LMI" "Cranes should be load tested when? - CORRECT ANSWER=> After modifications"
"Upon completion of assembly of the crane, what must be done? - CORRECT ANSWER=> An inspection to ensure that manufacturer specifications are met" "During crane assembly, the counter weight should be installed when? - CORRECT ANSWER=> Before raising the boom" "A long boom crane at a short radius and out of level by 300 can see a reduction incapacity by as much as: - CORRECT ANSWER=> 50%" "Crane stability is based on - CORRECT ANSWER=> lever principle" "What is the OSHA standard for cranes in construction industry? - CORRECT ANSWER=> 29 CFR-
- Subpart CC" "What are the requirements to be a crane inspector? - CORRECT ANSWER=> Same as operator" "What percentage of the crane chart is considered a critical lift? - CORRECT ANSWER=> 75%" "A multi crane lift shall require - CORRECT ANSWER=> Critical lift plan, reduction of gross capacity by 25% and one designated person in charge." "When doing a pick and carry, tire pressure must - CORRECT ANSWER=> meet manufacturer's specifications" "The load chart is matched to the crane by: - CORRECT ANSWER=> Serial number" "Where do you find recommended reeving for the hoist lines? - CORRECT ANSWER=> Owner's manual" "Not extending telescoping boom sections equally; what may occur? - CORRECT ANSWER=> Longer section collapse" "What are the broken wire removal requirements for rotation resistant wire rope? - CORRECT ANSWER=> 2 broken wires in 6 diameters or 4 in 30 diameters" "How should wire rope be inspected during a frequent inspection? - CORRECT ANSWER=> Visually"
c. Stay in the cab until the lines are de-energized d. Get as far away from the crane as possible - CORRECT ANSWER=> c." "According to OSHA 1926.1413, how many randomly distributed broken wires in rotation- resistant rope are cause for replacement of the rope? a. 1 broken wire in 6 rope diameters b. 2 broken wires in 30 rope diameters c. 3 broken wires in one strand in one lay d. 2 broken wires in 6 rope diameters - CORRECT ANSWER=> d." "What is the net capacity of a crane on main boom unless the manufacturer states otherwise? a. The capacity listed in the load chart minus the weight of the rigging and all attachments b. The capacity listed in the load chart plus the weight of the rigging and all attachments c. The capacity listed in the load chart minus the weight of the rigging and all attachments not in use d. The capacity listed in the load chart minus the weight of the rigging alone - CORRECT ANSWER=> a." "What may happen to a properly rigged load when lifted off the ground unless the operator takes account of boom deflection? a. It could swing out away from the crane b. It could swing in towards the crane c. It could raise absolutely vertically d. It could shift in its rigging - CORRECT ANSWER=> a." "What Standard Method hand signal is being illustrated? a. Swing b. Stop c. Emergency Stop d. Travel - CORRECT ANSWER=> a." "Who should an operator respond to a "stop" signal from? a. Appointed signal person only b. Project manager only c. Superintendent only d. Anyone - CORRECT ANSWER=> d."
"Which area do truck cranes without a 5th outrigger generally have no lifting capacity unless the manufacturer states otherwise? a. The side b. The rear c. The front d. The outriggers - CORRECT ANSWER=> c." “What action does a signal person intend the operator to perform if he extends his arm at shoulder height, makes a fist with his hand, and sticks his/her thumb up? a. Boom down b. Swing c. Boom up d. Extend boom - CORRECT ANSWER=> c." "When hoisting personnel, within what percentage of level must a telescopic boom crane be in order for the gross ratings in the load chart to remain valid? a. 1% b. 2% c. 5% d. 8% - CORRECT ANSWER=> a." "The load line of the crane you're operating contacts an energized power line. There's no sign of any other danger, such as fire. What should you do? a. Climb down carefully from the crane cab b. Jump down, feet together c. Stay in the cab until the lines are de-energized d. Get as far away from the crane as possible - CORRECT ANSWER=> c." "According to OSHA 1926.1413, how many randomly distributed broken wires in rotation- resistant rope are cause for replacement of the rope? a. 1 broken wire in 6 rope diameters b. 2 broken wires in 30 rope diameters c. 3 broken wires in one strand in one lay d. 2 broken wires in 6 rope diameters - CORRECT ANSWER=> d." "What is the net capacity of a crane on main boom unless the manufacturer states otherwise? a. The capacity listed in the load chart minus the weight of the rigging and all attachments b. The capacity listed in the load chart plus the weight of the rigging and all attachments
"What applies to the capacities below the bold line shown on a load chart? a. They are based on the structural strength of the crane b. They must not be used c. They are based on the stability of the crane d. They should only be used if the crane is set up on outriggers - CORRECT ANSWER=> c." "In which quadrant are rough terrain crane capacities generally greater? a. Over the front b. Over the rear c. Over the right side d. Over the left side - CORRECT ANSWER=> a." "According to federal requirements, under what conditions is it okay for a person to ride the headache ball? a. When there is no other way to gain access b. When the lift has been approved by an engineer c. When other means would be more dangerous d. It is never okay - CORRECT ANSWER=> d." "By what percentage do most manufacturers require a crane's load chart capacity to be reduced by for duty cycle operations such as high-volume concrete placement? a. 10%. b. 15%. c. 20%. d. 30%. - CORRECT ANSWER=> c." "From which two points should the boom be measured? a. From the base of the boom to the center of the boom tip sheave b. From the boom hinge pins to the boom tip c. From the boom hinge pins to the center of the boom tip sheaved. d. From the base of the boom to the boom tip - CORRECT ANSWER=> c." "What is the preferred method of installing wire rope from a reel onto a hoist drum? a. The rope runs from the top of the reel to the bottom of the drum b. The rope runs from the bottom of the reel to the top of the drum c. The rope runs from the top of the reel to the top of the drum d. There is no preferred method - CORRECT ANSWER=> c."
"Over which quadrant are truck crane capacities usually greater? a. Over the front. b. Over the rear. c. Over the front right outrigger. d. Over the side. - CORRECT ANSWER=> b." "According to OSHA, which accessible area of an operating crane must always be barricaded? a. The swing radius of the crane b. The carbody or chassis c. The swing radius of the rear of the rotating superstructure d. The distance between the car body or chassis and the boom tip - CORRECT ANSWER=> c." "What is the OSHA regulation governing cranes in construction? a. 1910. b. 1926. c. 1926. d. 1910.184 - CORRECT ANSWER=> b." "Under which circumstance is a crack in the windshield of a crane cab okay? a. As long as it causes no visible distortion that would interfere with safe operations b. As long as it is less than 6 inches long c. As long as the windshield is replaced on the next annual inspection d. It is never okay - CORRECT ANSWER=> a." "Under which circumstance does OSHA permits hoisting of personnel by crane? a. As long as the prevailing wind speed is less than 35 mph b. As long as there is no less hazardous or practicable way c. As long as all personnel have CPR training d. As long as no aerial work platform is available - CORRECT ANSWER=> b." "Unless the manufacturer states otherwise, what crane capacity chart is appropriate when a crane is set up with 3 of its 4 outriggers extended and the fourth is retracted? a. On-outrigger chart b. On-rubber chart c. On-outrigger chart minus 20% d. On-rubber chart plus 20% - CORRECT ANSWER=> b."
"29. Where is the tipping axis of a crawler crane located? a. It is always at the centerline of the idler or sprocket b. It depends if the idler or sprocket are in line or offset from the track rollers c. It is through the centerline of the crane cab d. It is through the boom butt section - CORRECT ANSWER=> b." "30. What should be done with materials placed under overhead energized power lines? a. Be dragged out b. Be lifted as normal c. Not be lifted by crane d. Handled with extra care - CORRECT ANSWER=> c." "What standard method hand signal is being illustrated? a. Boom up b. Boom down c. Retract boom d. Hoist - CORRECT ANSWER=> c." "32. Where should the crane's outrigger pads or tracks be placed when working at ground floor level near a cellar wall? a. As close as possible to the wall b. At least as far back as the depth of the wall below ground c. At a distance at least half the depth of the cellar wall below ground d. Anywhere, since the wall is unaffected by the weight of the crane - CORRECT ANSWER=> b." "33. How should the wheels of a crane be positioned when it is set up for working on outriggers? a. Just touching the ground b. As high as possible off the ground c. Just high enough off the ground to relieve the tires of crane weight d. Firmly on the ground to support the crane - CORRECT ANSWER=> c." "34. What happens to ground bearing pressure if you move a crawler crane from soft ground to harder ground? a. It increases b. It decreases by a third
c. It remains the same d. It decreases by half - CORRECT ANSWER=> a." "35. When may a swivel be used with rotation resistant wire rope? a. Always b. Never c. If the rope manufacturer approves d. If the operator decides it's OK - CORRECT ANSWER=> c." "36. What should you do on pick and carry operations? a. Keep the boom as short as possible b. Keep the load as high above the ground as possible c. Ensure the load is as far from the carrier/carbody as possible d. Use maximum boom length - CORRECT ANSWER=> a." "37. What boom position would cause the greatest ground pressure when lifting with crawler cranes? a. Over the right side b. Over the end c. Over the corner d. over the left side - CORRECT ANSWER=> c." "38. Where should the hook be positioned when preparing to hoist a light load? a. Slightly to the side you're planning to swing to b. Slightly to the side opposite you plan to swing to c. Directly above the load's center of gravity d. Above the edge of the load closest to the crane - CORRECT ANSWER=> c." "39. According to OSHA 1926.1408, what minimum clearance must be maintained between any part of the crane/load and 850kV energized overhead power lines. a. 25 ft. b. 30 ft. c. 35 ft. d. 45 ft. - CORRECT ANSWER=> d." "40. How many parts of line are required to hoist a 36,500 lb. load if the maximum allowable line pull is 9,000 lb.? a. 3
