Answer :
Final answer:
Hydraulic ventilation effectively moves large volumes of smoke and heat.
Explanation:
The correct statement about hydraulic ventilation is option (c): hydraulic ventilation effectively moves large volumes of smoke and heat.
Hydraulic ventilation is a technique used in firefighting to remove smoke and heat from a structure. It involves using a high-speed stream of water to create a low-pressure region, which entrains air and draws out the smoke and heat.
For example, a common aspirator uses a high-speed stream of water to create a region of lower pressure, which in turn draws out air or smoke. This technique is effective in moving large volumes of smoke and heat out of a building.
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