Question

question # 12
when using water recovery, the fill level of the recovery cylinder can be controlled by any of the following except:
a mechanical float devices
b electronic shut - off devices
c the grass clipper weight
d the pitch of the recovery device

Explanation:

Mechanical float devices can monitor and control liquid - level by floating on the liquid surface. Electronic shut - off devices can detect and stop the filling process when a certain level is reached. The pitch of the recovery device can affect the flow rate and thus the fill level. However, the grass clipper weight has no direct relation to controlling the fill level of the recovery cylinder in water recovery.

Answer:

C. the grass clipper weight