NCCER Crane Operations & Safety Procedures 4

Question 1

What information must be posted in the cab of a lattice boom crawler crane according to NCCER and OSHA standards?

Accepted Answer

Load charts, operating procedures, and recommended operating speeds

Answer

Load charts, operating procedures, and manufacturer recommended speeds must be posted in the cab for the operator to reference during operations.

Question 2

What is the primary reason a crane should NEVER be used to pull a load horizontally along the ground (dragging)?

Accepted Answer

It can apply a side load that exceeds the crane's structural capacity

Answer

Dragging loads applies side and horizontal forces the crane structure is not rated for, which can cause boom or crane structural failure.

Question 3

If a crane operator discovers that an outrigger pad is sinking during a lift, what is the FIRST action to take?

Accepted Answer

Stop all crane movement and lower the load to the ground immediately

Answer

Sinking outrigger pads indicate the ground is failing, which can cause the crane to overturn; the load must be lowered immediately.

Question 4

What is the purpose of a 'lift plan' or 'rigging plan' before performing a crane lift?

Accepted Answer

To pre-plan the safest rigging method, load path, and hazard controls

Answer

A lift plan identifies hazards, specifies rigging, and establishes safe procedures before lifting begins.

Question 5

Which of the following describes the 'working radius' of a crane?

Accepted Answer

The horizontal distance from the axis of rotation to the center of the load

Answer

Working radius is the horizontal distance from the crane's centerline of rotation to the center of the load being lifted.

(NCCER Crane) National Center for Construction Education and Research Crane Certification Practice Test