MASS Load Charts and Capacity 3

Question 1

When calculating load radius, the measurement is taken from the center of rotation to:

Accepted Answer

The center of the suspended load

Answer

The tip of the boom only

Answer

The rear of the carrier

Answer

The operator's seat

Question 2

Boom deflection under load tends to do what to the actual operating radius?

Accepted Answer

Increase it beyond the no-load radius

Answer

Decrease it

Answer

Eliminate it

Answer

Have no effect

Question 3

If a load chart lists capacities for 'fully extended outriggers,' using mid-extended outriggers means you must:

Accepted Answer

Use the lower mid-extended capacity column instead

Answer

Use the same numbers

Answer

Increase the rated capacity

Answer

Ignore the outrigger setting

Question 4

A 360-degree (over-the-side) rating compared to an over-the-rear rating on a rough-terrain crane is usually:

Accepted Answer

Lower, because over-the-side is the least stable orientation

Answer

Higher

Answer

Identical in all cases

Answer

Not listed on charts

Question 5

What information does the 'range diagram' portion of crane documentation provide?

Accepted Answer

The relationship between boom length, boom angle, radius, and lift height

Answer

Only the fuel capacity

Answer

The paint color codes

Answer

Tire replacement schedule

Question 6

If the planned lift exceeds the chart capacity at the required radius, the correct action is to:

Accepted Answer

Stop and reconfigure, use a larger crane, or reduce the load

Answer

Add operators to the cab

Answer

Increase the engine throttle

Answer

Lift quickly to avoid tipping

Question 7

The weight of an auxiliary lifting attachment such as a jib that is erected but not in use should be:

Accepted Answer

Deducted from the main boom's capacity as required by the chart notes

Answer

Ignored entirely

Answer

Added to the capacity

Answer

Counted as counterweight