Pump Operations and Hydraulics - Chapter 10 || with 100% Accurate Solutions.

From what location is the procedure for making the pump operational performed for most apparatus? A: Cab of the vehicle. B: Location varies depending on the incident. C: Outside the vehicle near the driver's door. D: Anywhere driver/operator is located with remote controls. correct answers A: Cab of the vehicle. Which of the following is used to prevent the pump from overheating during fire attack if water is not flowing for an extended period of time? A: Rotary Valve. B: Piston Gear Valve. C: Inline Gated-Valve. D: Booster Cooling Valve. correct answers D: Booster Cooling Valve. What residual pressure should be maintained on the master intake gauge during pumping operations when operating from a pressurized supply source? A: At least 10 psi (70 kPa) B: At least 20 psi (140 kPa) C: At least 30 psi (210 kPa) D: At least 40 psi (140 kPa) correct answers B: At least 20 psi (140 kPa) When is residual pressure shown on the intake gauge of a pumper that is connected to a hydrant? A: When a pumper is discharging water. B: When a pumper is totally shit down. C: When a pumper is not discharging water. D: When a pumper is transitioning to another water source. correct answers A: When a pumper is discharging water. One indication that a pump is cavitating is that...? A: The pressure gauge will rise suddenly and continue rising. B: Increases in the throttle cause a significant reaction on the pressure gauges. C: The pump itself will become extremely quiet with no apparent sounds at all. D: The pump itself may make noises described as sounding like gravel passing through the pump. correct answers D: The pump itself may make noises described as sounding like gravel passing through the pump.