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NCCCO Mobile Crane Operator Certification, Exams of Nursing

Chamberlain College of NursingNursing

NCCCO Mobile Crane Operator Certification

Typology: Exams

2025/2026

Available from 05/28/2026

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NCCCO MOBILE CRANE EXAM 2023-2024 ACTUAL EXAM 100
QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) |ALREADY GRADED A
1. 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 - ANSWER-c.
2. 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 - ANSWER-a.
3. 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 - ANSWER-c.
4. 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
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QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED

ANSWERS) |ALREADY GRADED A

  1. 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 - ANSWER-c.
  2. 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 - ANSWER-a.
    1. 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 - ANSWER-c.
  3. 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

QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED

ANSWERS) |ALREADY GRADED A

c. 3 broken wires in one strand in one lay d. 2 broken wires in 6 rope diameters - ANSWER-d.

  1. 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 - ANSWER-a.
  2. 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 - ANSWER-a.
  3. What Standard Method hand signal is being illustrated? a. Swing b. Stop c. Emergency Stop

QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED

ANSWERS) |ALREADY GRADED A

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 - ANSWER-c.

  1. 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 - ANSWER-a.
  2. 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 - ANSWER-d.
  3. 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%. - ANSWER-c.

QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED

ANSWERS) |ALREADY GRADED A

  1. 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 - ANSWER-c.
  2. 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 - ANSWER-c.
  3. 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. - ANSWER-b.
  4. 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

QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED

ANSWERS) |ALREADY GRADED A

  1. 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% - ANSWER-b.
  2. According to OSHA, while hoisting personnel, the total load must not exceed what percentage of the crane's rated capacity?" a. 45% b. 50% c. 75% d. 85% - ANSWER-b.
  3. When is side loading of crane booms permitted? a. When the operator says it's OK b. So long as no jib is installed c. Only when the outriggers are fully extended d. Only with freely suspended loads - ANSWER-d.
  4. What is indicated if an operator makes two audible signals when moving a crane? a. He/she intends to stop b. He/she intends to back up c. He/she intends to go ahead d. He/she intends to stop (emergency) - ANSWER-c.

QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED

ANSWERS) |ALREADY GRADED A

  1. 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 - ANSWER-d.
  2. 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 - ANSWER-b.
  3. 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% - ANSWER-b.
  4. Where is the tipping axis of a crawler crane located? a. It is always at the centerline of the idler or sprocket

QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED

ANSWERS) |ALREADY GRADED A

  1. 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 - ANSWER-c.
  2. 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% - ANSWER-a.
  3. 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 - ANSWER-c.
  4. 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

QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED

ANSWERS) |ALREADY GRADED A

c. Ensure the load is as far from the carrier/carbody as possible d. Use maximum boom length - ANSWER-a.

  1. 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 - ANSWER-c.
  2. 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 - ANSWER-c.
  3. 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. - ANSWER-d.

QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED

ANSWERS) |ALREADY GRADED A

c. Never d. During assembly/disassembly operations - ANSWER-d.

  1. 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 - ANSWER-a.
  2. 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 - ANSWER-a.
  3. 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 - ANSWER-a.
  4. 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

QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED

ANSWERS) |ALREADY GRADED A

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 - ANSWER-b.

  1. 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 - ANSWER-c.
  2. What hand signal must be obeyed at all times? a. Swing b. Clog-everything c. Stop d. Hoist Slow - ANSWER-c.
  3. 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 - ANSWER-b.
  4. When may a crane be overloaded?

QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED

ANSWERS) |ALREADY GRADED A

a. Always b. Always, except when the use of the tagline become hazardous c. Ehen the rotation of the load becomes hazardous d. When the operator cant see the load - ANSWER-c.

  1. What shall be in the operators cab during crane operations? a. load charts b. Inspection reports c. Hand signal chart d. The crane log - ANSWER-a.
  2. Which of the following is considered duty cycle work? a. Pile- driving b. Setting trusses c. Clam - Shell digging d Unloading trucks - ANSWER-c.
  3. When doing cycle work, the load chart must be reduced by how much? a. 50% b. 20% c. 30% d. none - ANSWER-b.
  4. Which components are not parts of the boom? a. Lacing

QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED

ANSWERS) |ALREADY GRADED A

b. Cords c. Cross members d. Heel pins - ANSWER-d. Where must the operator's manual be kept during crane operations? - ANSWER-The operator's manual must be kept in the cab at all times. According to ASME B30.5, what are the minimal requirements to meet crane operatorqualifications? - ANSWER-Physical, Written Test, Practical Test What hand signal must be obeyed at all times? - ANSWER-Stop When removing pins or bolts from a boom assembly, workers shall remain _________________. - ANSWER-out from under the boom When may a crane be overloaded? - ANSWER-Never When can the operator leave the crane? - ANSWER-After securing the crane When can a crane be side loaded? - ANSWER-With a freely suspended load The deflection of a boom will cause the load to __________________________. - ANSWER-increase the radius

QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED

ANSWERS) |ALREADY GRADED A

An anti-two-block device can be used _________________. - ANSWER-to test the LMI Cranes should be load tested when? - ANSWER-After modifications Upon completion of assembly of the crane, what must be done? - ANSWER-An inspection to ensure that manufacturer specifications are met During crane assembly, the counter weight should be installed when? - 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: - ANSWER-50% Crane stability is based on - ANSWER-lever principle What is the OSHA standard for cranes in construction industry? - ANSWER-29 CFR-1926. Subpart CC What are the requirements to be a crane inspector? - ANSWER-Same as operator What percentage of the crane chart is considered a critical lift? - ANSWER75% A multi crane lift shall require - ANSWER-Critical lift plan, reduction of gross capacity by 25% and one designated person in charge.

QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED

ANSWERS) |ALREADY GRADED A

When doing a pick and carry, tire pressure must - ANSWER-meet manufacturer's specifications The load chart is matched to the crane by: - ANSWER-Serial number Where do you find recommended reeving for the hoist lines? - ANSWEROwner's manual Not extending telescoping boom sections equally; what may occur? - ANSWER-Longer section collapse What are the broken wire removal requirements for rotation resistant wire rope? - ANSWER-2 broken wires in 6 diameters or 4 in 30 diameters How should wire rope be inspected during a frequent inspection? - ANSWER-Visually What is the object of rope lubrication? - ANSWER-A and B What is the design factor for rotation resistant rope used as a hoist line? - ANSWER-5: The load hoist drum flange shall be _________________. - ANSWER-1/ in. or higher over the top layer of rope