CHST Crane and Rigging Safety 2

Question 1

Under OSHA 1926.1412, what must a crane operator do before beginning any lifting operations?

Accepted Answer

Conduct a pre-shift visual inspection of the crane, including controls, safety devices, wire rope, and operational aids

Answer

OSHA 1926.1412(d) requires the operator to conduct a visual inspection of the crane at the beginning of each shift to check all systems, controls, wire ropes, hooks, and safety devices before any lifting operations begin.

Question 2

What is the required minimum clearance between a crane and an energized power line rated between 50 kV and 200 kV under OSHA 1926.1408?

Accepted Answer

15 feet

Answer

For power lines rated over 50 kV up to 200 kV, OSHA 1926.1408 Table A requires a minimum clearance of 15 feet between any part of the crane (including load line and load) and the energized line.

Question 3

What does a crane's 'load chart' specify, and why must it be accessible to the operator at all times?

Accepted Answer

The maximum loads the crane can safely lift at various radii, boom lengths, and configurations — it must be accessible so the operator can verify any proposed lift is within rated capacity

Answer

A crane load chart provides the rated capacity for the crane at varying radii, boom lengths, boom angles, and configurations, allowing the operator to determine whether a proposed lift is within the crane's safe working load.

Question 4

Under OSHA 1926.1425, when are tag lines required during crane lift operations?

Accepted Answer

When the load must be controlled to prevent rotation, swinging, or uncontrolled movement that could endanger workers

Answer

Tag lines are required when the load might rotate, swing, or otherwise move in an uncontrolled manner that could endanger employees — not based on a fixed weight or height threshold.

Question 5

What does OSHA 1926.1412 prohibit regarding crane rated capacity during normal lifting operations?

Accepted Answer

Operating a crane in excess of its rated capacity under any normal operational conditions

Answer

OSHA 1926.1412(a) states that cranes must not be loaded beyond their rated capacity. The only exception is during manufacturer-approved load testing performed per the manufacturer's procedures.

CHST - Construction Health and Safety Technician Practice Test

CHST - Construction Health and Safety Technician Practice Test

CHST Crane and Rigging Safety 2