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

2:1

Answer

3:1

Answer

10:1

Question 2

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

Accepted Answer

15%

Answer

5%

Answer

10%

Answer

25%

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

Serial number and date of manufacture only

Answer

Owner's name, purchase date, and last inspection date

Answer

Material specification and heat treatment condition

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

Obtain written approval from the crane manufacturer

Answer

Limit crane travel speed to 10% of the maximum rated speed

Answer

Post a warning sign at the crane's controls

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

After each calendar month of use

Answer

Every time the crane travels to a new work site

Answer

Whenever a new operator assumes control

Question 6

Per ASME B30.9, which sling configuration results in the greatest reduction in rated capacity compared to a straight vertical lift?

Accepted Answer

Two-leg bridle sling at 120 degrees included angle

Answer

Two-leg bridle sling at 90 degrees included angle

Answer

Two-leg bridle sling at 60 degrees included angle

Answer

Single-leg sling used in basket hitch

Question 7

According to ASME B30.2, what is the required action when a crane's load-limiting or load-indicating device is found to be malfunctioning?

Accepted Answer

The crane must be taken out of service until the device is repaired or replaced

Answer

The crane may continue in service at 75% of rated load until repairs are made

Answer

The device may be bypassed if an experienced operator is present

Answer

A written variance from the authority having jurisdiction must be obtained