NCCCO Certification of Crane Operators
Core - Mechanical Engineering Exam
Questions and Answers 100% Pass |
Graded A+
Term Definition
1. What action does a signal person intend1.the
c. operator to perform if he extends
his arm at shoulder height, makes a fist with his hand, and sticks his thumb up?
a. Boom down
b. Swing
c. Boom up
d. Telescope out
Term Definition
2. Within what percentage of level does a telescopic boom crane have to be for the gross 2. a.
ratings in the load chart to remain valid?
a. 1%
b. 2%
c. 5%
d. It doesn’t matter so long as the outriggers are fully extended and set
Term Definition
3. The load line of the crane you’re operating comes into contact with an energized power3. c.
line. There’s no sign of any other danger, such as fire. In such a situation, you should:
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
Term Definition
4. You’re setting your crane up in a confined area and you cannot fully extend your 4. b.
fourth outrigger. Your crane does not have a load chart for intermediate extension
working. In such a situation you should use the capacities in the:
a. on-outriggers load chart
b. on-rubber load chart
c. on-outriggers load chart while being careful not to swing the load over the short
, outrigger
d. on-outriggers load chart, after shortening all outriggers to the same length as the
fourth (short) outrigger
Term Definition
5. According to OSHA 1926.1413, how many randomly distributed broken wires in 5. d.
rotation-resistant rope are cause for considering 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
Term Definition
6. Unless the manufacturer states otherwise, the net capacity of a crane on main boom is 6. a.
the capacity listed in the load chart:
a. minus the weight of the rigging and all attachments
b. plus the weight of the rigging and all attachments
c. minus the weight of the rigging and all attachments not in use
d. minus the weight of the rigging alone
Term Definition
7. Unless the operator takes account of boom deflection, when lifted off the ground, a 7. a.
properly rigged load may:
a. swing out away from the crane
b. swing in towards the crane
c. raise absolutely vertically
d. shift in its rigging
Term Definition
8. Which is the most common cause of death to crane operators? 8. c.
a. Electrocution
b. Falls from the crane getting on and off
c. Crane turnover
d. Fire
Term Definition
9. What standard method hand signalisis being illistrated? 9. a.
Swing-handsignalgraphic
a. Swing
b. Stop
c. Emergency Stop
d. Travel
Term Definition
10. An operator should respond to a "stop" signal from: 10 d.
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