NCCCO OSHA Crane Regulations 29 CFR 1926 5

Question 1

Under 29 CFR 1926.1410, a critical lift plan is required when a lift exceeds what percentage of the crane's rated capacity?

Accepted Answer

90%

Answer

1926.1410 defines a critical lift as one that exceeds 90% of the crane's rated capacity, requiring additional planning and controls.

Question 2

According to 29 CFR 1926.1419, which hand signal indicates 'Stop' during crane operations?

Accepted Answer

Arm extended, palm down, moving arm back and forth horizontally

Answer

The standard OSHA hand signal for 'Stop' is the arm extended with palm facing down, moved back and forth horizontally.

Question 3

29 CFR 1926.1441 applies to dedicated pile-driving equipment. Under this section, when must the leads be secured?

Accepted Answer

At the end of each work shift and during breaks

Answer

1926.1441 requires pile-driving leads to be secured at the end of each shift and during rest periods to prevent uncontrolled movement.

Question 4

Under 29 CFR 1926.1426, when lifting personnel with a crane, what is the maximum allowable speed for lowering and raising the personnel platform?

Accepted Answer

Personnel platforms must be moved at a controlled, slow speed with no specific numeric limit

Answer

1926.1426 requires personnel platforms to be raised and lowered in a slow, controlled manner; no specific numeric speed limit is stated, but erratic or excessive speed is prohibited.

Question 5

According to 29 CFR 1926.1413, what is the minimum number of wire rope dead wraps that must remain on the drum at all times during operation?

Accepted Answer

2 wraps

Answer

1926.1413 requires a minimum of two dead wraps of wire rope to remain on the drum so the rope termination is not subjected to load stress.

NCCCO (National Commission for the Certification of Crane Operators) Practice Test

NCCCO (National Commission for the Certification of Crane Operators) Practice Test

NCCCO OSHA Crane Regulations 29 CFR 1926 5