What are the OSHA regulations regarding scaffold support, bracing, access, and ladder rest platforms?

Here are the answers to your questions:

21. Unstable objects shall not be used to support scaffolds or platform units: [1926.451 (c) (2)(ii)]

    • OSHA 1926.451(c)(2)(ii) explicitly states that unstable objects shall not be used to support scaffolds or platform units at any time.
    • The correct option is c).
    • c. at anytime

22. Supported scaffold poles, legs, posts, frames, and uprights shall be: [1926.451 (c) (3)]

    • OSHA 1926.451(c)(3) requires that supported scaffold poles, legs, posts, frames, and uprights shall be plumb and braced to prevent swaying and displacement.
    • The correct option is c).
    • c. plumb and braced to prevent swaying and displacement

23. Ladders or other means of acceptable access must be provided to scaffold platforms whenever the point of access is greater than: [1926.451 (e)(1)]

    • OSHA 1926.451(e)(1) mandates that access must be provided to scaffold platforms when the platform is more than 2 feet (0.61 m) above or below a point of access.
    • The correct option is b).
    • b. 2 feet (.61m)

24. When hook-on or attachable ladders are used as access, a rest platform must installed at maximum intervals of: [1926.451 (e) (2)(iii)]

    • OSHA 1926.451(e)(2)(iii) specifies that hook-on and attachable ladders shall have rest platforms at maximum vertical intervals of 35 feet (10.7 m).
    • The correct option is b).
    • b. 35-foot (10.66m)

25. Hook-on and attachable ladders shall have uniformly spaced rungs with a maximum spacing between the rungs of: [1926.451 (e) (2)(vi)]

    • OSHA 1926.451(e)(2)(vi) requires that hook-on and attachable ladders have uniformly spaced rungs with a maximum spacing between rungs of 16 3/4 inches (43 cm).
    • The correct option is b).
    • b. 16 3/4 inches (42.55cm)