IFSTA Pumping and Aerial Apparatus Driver/Operator 3rd Ed. (DPO) All Chapters questions with verified answers

IFSTA Pumping and Aerial Apparatus Driver/Operator 3rd Ed. (DPO) All Chapters questions with verified answers Tanks 1000 gal. = 1" Tanks 1000gal. = 2" - Correct Answers Tank fill line sizes pg 315/316 Minimum piping/valve/elbow size where 1.5", 1.75" and 2" handlines will be attached. - Correct Answers 2 inches pg 314 What are the minimum number of 2 1/2" Discharges? - Correct Answers 750gpm, 2x 2 1/2 minimum 750gpm, 1x 2 1/2" minimum pg 314 All valves should be designed and maintained so that they are easily operable at what pressure? - Correct Answers 250 Psi pg 314 NFPA 1901 requires all components of the piping system to be made of ____ and withstand ___ hydro rest. - Correct Answers Corrosion resistant materials, 500psi hydro test. pg 312 What is the flow rate of the Tank to Pump line? - Correct Answers 500gpm pump line must flow 500+ 500gpm pump, line must flow 250+ pg 312 Transfer case/Gear box ratio. - Correct Answers 1.5 - 2.5 faster than engine speed pg 310 When pumping in series(pressure) mode, the pump discharges __ to __ % of the rated volume. - Correct Answers 50-70% pg 302 Doubling the speed of an impeller in an centrifugal pump will result in __ as much pressure? - Correct Answers Four times as much pressure. pg 300 What are the three main factors that influence a centrifugal pumps discharge pressure? - Correct Answers 1) Amount of water being discharged (more water out means less back pressure to build up) 2) Speed at which the impeller is spinning (more speed = more pressure / 2x speed = 4x pressure) 3) Pressure of the