MASS Load Charts and Capacity 5

Question 1

A load moment indicator (LMI) primarily helps the operator by:

Accepted Answer

Warning when the load approaches or exceeds the rated capacity for the current configuration

Answer

Setting the engine speed

Answer

Measuring fuel level

Answer

Controlling cab climate

Question 2

An LMI is a useful aid but must never be relied on as a substitute for:

Accepted Answer

The operator's own load chart calculations and judgment

Answer

The horn

Answer

The backup camera

Answer

The fuel gauge

Question 3

Soft or unstable ground under an outrigger most directly threatens which type of capacity limit?

Accepted Answer

Stability-based (tipping) capacity

Answer

Wire-rope strength

Answer

Engine output

Answer

Hook latch strength

Question 4

Why are charts for lifting on rubber (tires) typically much lower than charts for lifting on outriggers?

Accepted Answer

Tires provide a smaller, less rigid stability base than fully deployed outriggers

Answer

Tires are heavier

Answer

Outriggers add load weight

Answer

Rubber charts include the counterweight

Question 5

Wind acting on a large, sail-like load can effectively:

Accepted Answer

Increase the load radius and side forces, reducing safe capacity

Answer

Increase rated capacity

Answer

Improve stability

Answer

Have no effect on the chart

Question 6

Side loading the boom (dragging or pulling a load sideways) is dangerous because load charts assume:

Accepted Answer

The load is freely suspended directly below the boom tip

Answer

The load is dragged along the ground

Answer

The boom is fully horizontal

Answer

The crane is moving

Question 7

Before every lift, the operator should confirm the chart matches the crane's current setup, including counterweight, boom configuration, and:

Accepted Answer

Outrigger position and quadrant of operation

Answer

The color of the load

Answer

The day of the week

Answer

The radio station