Final answer:
To ensure safety, the design must provide a minimum vertical clearance between the work deck and the ROPS (Roll-Over Protective Structure). The specific value for the vertical clearance may vary depending on regulations and standards.
Step-by-step explanation:
The design must provide a vertical clearance of at least how much from the work deck to the ROPS?
To answer this question, we need to know the meaning of ROPS. ROPS stands for Roll-Over Protective Structure, which is a safety feature designed to protect the operator of a vehicle in the event of a rollover. In the context of the question, the ROPS is likely referring to a protective structure on a work deck.
The question asks for the minimum vertical clearance between the work deck and the ROPS. This means that the designer must ensure that there is enough space for the operator to safely operate without hitting their head on the ROPS. The specific value for the vertical clearance may vary depending on regulations, standards, and the specific equipment being used.