LATEST VERSION - Questions with Correct Detailed Answers || Alre...

NCCCO Mobile Crane Exam ( / ) Questions with Correct Detailed Answers || Already Graded A+

• Under which circumstance is a crack in the windshield of a crane cab okay?
• As long as it causes no visible distortion that would interfere with safe

operations

• As long as it is less than 6 inches long
• As long as the windshield is replaced on the next annual inspection d.

It is never okay - ANSWER ✔ a.

• Under which circumstance does OSHA permits hoisting of personnel by

crane?

• As long as the prevailing wind speed is less than 35 mph
• As long as there is no less hazardous or practicable way
• As long as all personnel have CPR training
• As long as no aerial work platform is available - 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?

• On-outrigger chart
• On-rubber chart
• On-outrigger chart minus 20%
• On-rubber chart plus 20% - ANSWER ✔ b.
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• According to OSHA, while hoisting personnel, the total load must not

exceed what percentage of the crane's rated capacity?"

• 45%
• 50%
• 75%
• 85% - ANSWER ✔ b.

• When is side loading of crane booms permitted?
• When the operator says it's OK
• So long as no jib is installed
• Only when the outriggers are fully extended
• Only with freely suspended loads - ANSWER ✔ d.

• What is indicated if an operator makes two audible signals when moving a

crane?

• He/she intends to stop
• He/she intends to back up
• He/she intends to go ahead
• He/she intends to stop (emergency) - ANSWER ✔ c.

• When may blocking (cribbing) be placed under outrigger beams?
• When beams cannot be extended all the way out
• To increase capacity
• To improve stability
• Never - ANSWER ✔ d.
• 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

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• 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? - ANSWER

✔ 75%

• A multi crane lift shall require - 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 - ANSWER ✔ meet

manufacturer's specifications

17. The load chart is matched to the crane by: - ANSWER ✔ Serial number

• Where do you find recommended reeving for the hoist lines? - ANSWER ✔

Owner's manual

• What is the result of placing timber blocking under the tips of the tracks on a

crawler crane?

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