¿Cuál de los siguientes enun- ciados sobre el polipasto de cadena es correcto?
a. Un mecanismo para
levantar carga con
cadena y una garrucha
a cadena son lo mismo.
b. Siempre se debe utilizar
un obturador con un
mecanismo para levantar
carga con cadena.
c. Un mecanismo para
levantar carga con
cadena y un polipasto de
cadena no son lo mismo.
d. Están diseñados de
manera que la cadena
pueda rodear la carga.
Answer: B
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