Answer:
The
pressure increases with increase of depth of water. The increase in pressure
in 1 atm by 10 m increase of depth of water. If this pressure falls on the
driver directly, he will not tolerate it. Therefore, if a driver wants to go to
large depth, he should wear the metallic cover. The pressure of water column
falls on the metallic cover and the pressure inside the cover remains nearly
equal to atmospheric pressure. Thus, by wearing metallic cover, the driver
remains quite safe.
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