RSP Crane Types & Operational Limits 3

Question 1

When a crane is operating 'on rubber' (tires only, outriggers not deployed), how does this affect its rated capacity?

Accepted Answer

Capacity is significantly reduced compared to operating on outriggers

Answer

Capacity is unchanged because rubber tires are stable

Answer

Capacity is increased due to the crane's mobility

Answer

Capacity is limited only by the hydraulic system pressure

Question 2

Which of the following is a key advantage of a lattice boom crane over a telescoping hydraulic boom crane?

Accepted Answer

Greater lifting capacity at longer radii

Answer

Faster setup and teardown time

Answer

Easier road transport without permits

Answer

Lower overall height during operation

Question 3

What is the purpose of a crane's anti-two-block (ATB) system?

Accepted Answer

To stop the hoist before the hook block contacts the boom tip sheaves

Answer

To prevent the crane from exceeding its rated load capacity

Answer

To lock the swing brake when the operator leaves the cab

Answer

To limit the maximum boom angle to prevent backward tipping

Question 4

During a lift, the rigger and signal person notice the crane's load indicator shows the load is at 98% of rated capacity. The proper action is to:

Accepted Answer

Stop the lift, reassess the load weight and crane configuration, and verify the load chart

Answer

Proceed quickly to complete the lift before wind conditions change

Answer

Reduce the boom angle slightly to increase rated capacity

Answer

Add a second hoist line to share the load

Question 5

A 'pick-and-carry' operation involves a crane:

Accepted Answer

Hoisting a load and traveling with it suspended while the crane moves

Answer

Lifting a load and then transferring it to a second crane

Answer

Picking a load from a truck and placing it on a fixed platform

Answer

Lifting and rotating a load without moving the crane's position

Question 6

The load radius on a crane is measured as:

Accepted Answer

The horizontal distance from the crane's center of rotation to the center of the suspended load

Answer

The vertical distance from the ground to the hook block

Answer

The total length of the boom from the foot pin to the boom tip

Answer

The distance from the crane's front axle to the load attachment point

Question 7

Which of the following is a common cause of crane overturn during lifting operations?

Accepted Answer

Lifting a load that exceeds the rated capacity or operating on unstable ground

Answer

Using a load chart that is two years old

Answer

Having too much counterweight installed for the boom length used

Answer

Operating in ambient temperatures below 40°F