ASME ASME Cranes Hoists and Material Handling B30 3

Question 1

According to ASME B30.9, what is the maximum allowable temperature for continuous use of wire rope slings with fiber cores?

Accepted Answer

300°F (149°C)

Answer

200°F (93°C)

Answer

400°F (204°C)

Answer

500°F (260°C)

Question 2

Per ASME B30.2, how often must functional operational tests (frequent inspections) be conducted on overhead cranes in regular service?

Accepted Answer

Before each shift or daily

Answer

Weekly

Answer

Monthly

Answer

Quarterly

Question 3

According to ASME B30.5, which factor does NOT need to be considered when determining whether a lift is a 'critical lift'?

Accepted Answer

The color of the rigging hardware being used

Answer

The load exceeds 75% of the crane's rated capacity

Answer

The use of multiple cranes to make the lift

Answer

Lifting personnel in a personnel platform

Question 4

Per ASME B30.20, what is the minimum design factor required for mechanical below-the-hook lifting devices?

Accepted Answer

4:1

Answer

2:1

Answer

3:1

Answer

5:1

Question 5

According to ASME B30.2, at what sustained wind speed must outdoor overhead crane operations generally be suspended?

Accepted Answer

The standard defers to the crane manufacturer's recommendation

Answer

20 mph (32 km/h)

Answer

35 mph (56 km/h)

Answer

50 mph (80 km/h)

Question 6

Per ASME B30.9, what condition requires a wire rope sling to be immediately removed from service?

Accepted Answer

Evidence of kinking, crushing, birdcaging, or core protrusion

Answer

Any visible surface oxidation or rust staining

Answer

Six randomly distributed broken wires in one rope lay length

Answer

Use of the sling in ambient temperatures above 70°F (21°C)

Question 7

According to ASME B30.5, what is the primary purpose of outriggers on a mobile crane?

Accepted Answer

To increase crane stability by widening the support base and reducing tipping risk

Answer

To increase the maximum travel speed of the crane on highways

Answer

To extend the reach of the crane's boom beyond normal limits

Answer

To provide a connection point for guy wires during erection work