NCCCO MOBILE CRANE EXAM -

NCCCO MOBILE CRANE EXAM -

100 QUESTIONS AND CORRECT DETAILED ANSWERS

VERIFIED ANSWERS GRADED A+

• 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?

• Boom down
• Swing
• Boom up
• Extend boom - ansc.

• Where must the operator's manual be kept during crane operations?
• The operator's manual must be kept in a location that is readily available
• The operator's manual must be kept in the cab at all times
• The operator's manual must be kept in the dispatch office
• The operator's manual must be kept in a secure place - ansb.

• According to ASME B30.5, what are the minimal requirements to meet crane operator

qualifications?

• High School Diploma
• CDL with on the job training
• Physical, Written Test, Practical Test
• CDL physical, employers written permission - ansc.

• 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?

• 1%
• 2%
• 5%
• 8% - ansa.

• 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?

• Climb down carefully from the crane cab
• Jump down, feet together
• Stay in the cab until the lines are de-energized
• Get as far away from the crane as possible - ansc.

• What hand signal must be obeyed at all times?
• Swing
• Clog-everything
• Stop
• Hoist Slow - ansc.

• According to OSHA 1926.1413, how many randomly distributed broken wires in rotation-resistant rope

are cause for replacement of the rope?

• 1 broken wire in 6 rope diameters
• 2 broken wires in 30 rope diameters
• 3 broken wires in one strand in one lay
• 2 broken wires in 6 rope diameters - ansd.

• When removing pins or bolts from a boom assembly, workers shall remain
• clear of sledge hammers 1 / 3

NCCCO MOBILE CRANE EXAM -

100 QUESTIONS AND CORRECT DETAILED ANSWERS

VERIFIED ANSWERS GRADED A+

• out from under the boom
• on top of boom holding pendants
• in sight of the operator - ansb.

• What is the net capacity of a crane on main boom unless the manufacturer states otherwise?
• The capacity listed in the load chart minus the weight of the rigging and all attachments
• The capacity listed in the load chart plus the weight of the rigging and all attachments
• The capacity listed in the load chart minus the weight of the rigging and all attachments not in use
• The capacity listed in the load chart minus the weight of the rigging alone - ansa.

• When may a crane be overloaded?
• When the supervisor says it's OK
• Never
• When testing the crane
• When proof testing a man basket - ansc.

• What may happen to a properly rigged load when lifted off the ground unless the operator takes

account of boom deflection?

• It could swing out away from the crane
• It could swing in towards the crane
• It could raise absolutely vertically
• It could shift in its rigging - ansa.

• When can the operator leave the crane?
• Break time
• End of the shift
• After securing the crane
• When a storm is coming - ansb.

• What Standard Method hand signal is being illustrated?

• Swing
• Stop
• Emergency Stop
• Travel - ansa.

• When can a crane be side loaded?
• Dragging a load
• With a freely suspended load
• Never
• Pile-driving - ansb.

• The deflection of a boom will cause the load to?
• side load the boom

b.decrfrease the radius

• increase the radius
• have no effect - ansc.

• Who should an operator respond to a "stop" signal from? 2 / 3

NCCCO MOBILE CRANE EXAM -

100 QUESTIONS AND CORRECT DETAILED ANSWERS

VERIFIED ANSWERS GRADED A+

• Appointed signal person only
• Project manager only
• Superintendent only
• Anyone - ansd.

• When should tag lines be used?
• Always
• Always, except when the use of the tagline become hazardous
• Ehen the rotation of the load becomes hazardous
• When the operator cant see the load - ansc.

• Which area do truck cranes without a 5th outrigger generally have no lifting capacity unless the

manufacturer states otherwise?

• The side
• The rear
• The front
• The outriggers - ansc.

• What is the definition of "operating radius?"
• 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

• The distance from the center of rotation of the crane to the center of the load
• The distance from the center of rotation of the crane to the center of gravity of the load - ansd.

• What shall be in the operators cab during crane operations?
• load charts
• Inspection reports
• Hand signal chart
• The crane log - ansa.

• What applies to the capacities below the bold line shown on a load chart?
• They are based on the structural strength of the crane
• They must not be used
• They are based on the stability of the crane
• They should only be used if the crane is set up on outriggers - ansc.

• Which of the following is considered duty cycle work?
• Pile- driving
• Setting trusses
• Clam - Shell digging

d Unloading trucks - ansc.

• In which quadrant are rough terrain crane capacities generally greater?
• Over the front
• Over the rear
• Over the right side
• Over the left side - ansa.

• When doing cycle work, the load chart must be reduced by how much?
• / 3