El objetivo de una válvula de rueda libre en una plataforma elevadora es:
a. lubricar las ruedas.
b. permitir que el operador mueva la elevación desde la plataforma.
c. permitir que la plataforma pueda empujarse a mano.
d. permitir que la plataforma se mueva hacia arriba y hacia abajo manualmente.
Answer: C
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