ASME ASME Cranes Hoists and Material Handling B30 2

Question 1

According to ASME B30.9, what is the minimum design factor (safety factor) required for wire rope slings?

Accepted Answer

5:1

Answer

ASME B30.9 requires wire rope slings to have a minimum design factor of 5:1, meaning the sling's breaking strength must be at least five times its rated capacity.

Question 2

Per ASME B30.10, at what percentage of throat opening increase must a hook be removed from service?

Accepted Answer

15%

Answer

ASME B30.10 specifies that a hook must be removed from service if the throat opening has increased by more than 15% from the original dimension, indicating dangerous deformation.

Question 3

According to ASME B30.20, what information must be permanently marked on below-the-hook lifting devices?

Accepted Answer

Manufacturer name, rated load capacity, and weight of the device

Answer

ASME B30.20 requires that below-the-hook lifting devices bear permanent markings identifying the manufacturer, the rated load, and the weight of the device itself.

Question 4

Per ASME B30.2, what must be done before personnel are permitted to work beneath a suspended load?

Accepted Answer

Ensure the load is secured and cannot be accidentally released or dropped

Answer

ASME B30.2 prohibits personnel from working beneath a suspended load unless the load is safely secured, such as blocked or cribbed, to prevent unintended movement or dropping.

Question 5

According to ASME B30.5 for mobile cranes, which condition triggers mandatory inspection of the load line?

Accepted Answer

After any occurrence that could have caused damage, such as a shock load

Answer

ASME B30.5 requires inspection of the load line following any event that may have caused damage, including shock loads, contact with obstructions, or a dropped load.

ASME - American Society of Mechanical Engineers Practice Test

ASME - American Society of Mechanical Engineers Practice Test

ASME ASME Cranes Hoists and Material Handling B30 2