SeguridadPregunta 1274 de 1605
For a non-self-supporting (leaning) portable ladder, what is the proper setup angle?
a.A 1:1 ratio
b.As steep as possible against the wall
c.Flat, resting on two supports
d.About a 4:1 ratio — base placed 1 foot out for every 4 feet of working height
Explicación
1926.1053(b)(5)(i) requires leaning ladders to be set at about a 4:1 pitch — the horizontal distance from the base to the support is roughly one-quarter of the ladder's working length.
Referencia Legal: 29 CFR 1926.1053(b)(5)Practica las 1605 preguntas gratis — sin registro.
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Revisado por Abraham Chen — Licensed California General Contractor (CSLB License #1101856 — verificar)