NCCCO Core Test Prep (New Update) Questions and Verified Answers| Graded A| 100% Correct
QUESTION
With the boom at its highest angle and its shortest radius, how many wraps of wire rope need to be on the drum at all times?
Answer:
2
QUESTION
When measuring load radius of the crane. You measure from the axis of rotation of the crane to the ?
Answer:
Center of gravity of the load
QUESTION
What must be deducted from the gross capacity of the crane when the jib is erected, but not in use?
Answer:
Effective weight
QUESTION
Where can tip height be found?
Answer:
Range diagram
QUESTION 1 / 4
The Net Capacity of the crane is?
Answer:
Gross capacity minus all applicable deduc- tions
QUESTION
When booming down with a jib/extension erected the effective weight of the jib ?
Answer:
Increases
QUESTION
When using a crane in a duty cycle operation manufacturers usually de-rate the cranes capacity by?
Answer:
20%
QUESTION
How would the operator of the crane know if the radius on the LMI is correct?
Answer:
By measuring
QUESTION
According to OSHA, each series of voice signals contain how many ele- ments?
Answer:
3
QUESTION
What is the first element of voice signals given to a crane operator prior to the lift?
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Answer:
Function and direction
QUESTION
When working within the boom's length of energized power lines what is required?
Answer:
A dedicated spotter to maintain safe clearances
QUESTION
What is the first thing the operator should do if the crane comes in contact with an energized power line?
Answer:
Remain in the cab until power line is de-energized
QUESTION
The weight deduction for a stowed jib is ?
Answer:
The effective weight
QUESTION
If the boom angle of the crane falls between values on the load chart you should use?
Answer:
The lower angle
QUESTION
What is the most common type of wire rope used on a crane?
Answer: 3 / 4
Right regular lay
QUESTION
According to Table A of OSHA 1926.1408 the minimum clearance distance for a power line over 200 KV is?
Answer:
20 ft.
QUESTION
When lifting from a jib/extension and the main boom is not fully extended. What information must you use to get the gross capacity from the load chart?
Answer:
Main boom angle
QUESTION
According to Table A of OSHA 1926.1408 the minimum clearance distance for a power line up to 50 KV is?
Answer:
10 ft.
QUESTION
According to Table A of OSHA 1926.1408 the minimum clearance distance for a power line at 100 KV is?
Answer:
15 ft.
QUESTION
According to Table A of OSHA 1926.1408 the minimum clearance distance for a power line over 350 KV is?
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