Fire Apparatus Driver/Operator - Pumper
"C" in the formula FL = CQ2L represents the: - Hose diameter coefficient 1. Available pressure at a discharge point without water flowing 2. The forward velocity of water at the discharge point 3. Pressure caused by the height of a water supply above the discharge point 4. Water pressure in a distribution system during regular consumption 5. Water pressure in a distribution system that is still available when a hydrant is flowing. - 1. Static Pressure 2. Flow Pressure 3. Head Pressure 4. Normal Operating Pressure 5. Residual Pressure A hose has a flow rate of 50 gpm with a friction loss of 2 psi. If the flow rate increases to 200 gpm, then the friction loss will increase to: - 32 psi According to NFPA 1901, discharge pressure relief valve must operate within: - 10 seconds after discharge pressure rises 30 psi above the set level. All of the fo
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- Subido en
- 12 de enero de 2023
- Número de páginas
- 7
- Escrito en
- 2022/2023
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- Examen
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c in the formula fl cq2l represents the hose diameter coefficient 1 available pressure at a discharge point without water flowing 2 the forward velocity of water at the discharge point