NCCCO MOBILE CRANE EXAM -

NCCCO MOBILE CRANE EXAM -

100 QUESTIONS AND

CORRECT DETAILED ANSWERS (

ANSWERS)

EXCELLENCE PASS

• 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 - 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?

• 1%

• 2%

• 5%

• 8% - 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?

• Climb down carefully from the crane cab 1 / 4

• Jump down, feet together

• Stay in the cab until the lines are de-energized

• Get as far away from the crane as possible - ANSWER-c.

• 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 / 4

• 2 broken wires in 6 rope diameters - ANSWER-d.

• 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 - ANSWER-a.

• 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 - ANSWER-a.

• What Standard Method hand signal is being illust ?

• Swing

• Stop

• Emergency Stop

• Travel - ANSWER-a.

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

• Appointed signal person only

• Project manager only 3 / 4

• Superintendent only

• Anyone - ANSWER-d.

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

manufacturer states otherwise?

• / 4