Practice Factors Affecting Lifting Capacity (4) - Types of Jib Cranes - Construction Engineering & Management - Vol 3

Practice: Factors Affecting Lifting Capacity

Lesson 4Types of Jib Cranes

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10 questions

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6 sample questions

Question 1.
What is the operating radius of a crane?
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Think about the reach of the crane and where the hook is compared to the crane.
Question 2.
Why are counterweights important on a crane?
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Consider what happens when you have a heavy load on one side of a seesaw.
3Question 3.
What happens to lifting capacity as operating radius increases?
- Lifting capacity increases
- Lifting capacity decreases
- No change
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Think about balance while lifting objects.
4Question 4.
True or False: The crane’s lifting capacity is unaffected by the condition of the supporting surface.
- True
- False
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Consider how your balance would be affected on different surfaces.
Question 5.
You are operating a crawler-mounted crane with an established tipping load of 10000 lbs. What is the maximum safe load you can lift?
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Remember the safety percentages for different crane types.
Question 6.
A crane's effective operating radius increases by 30% due to boom angle adjustments. If its original radius was 15 meters, how much further can it reach?
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Calculate percentage increases carefully.

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