Driver Operator Mobile Water Supply

A hose has a flow rate of 500 gpm with a friction loss of 4 psi, if the flow rate increases to 1000 gpm, then the friction loss will increase to?? - 16 psi A major advantage of a positive displacement pump over a centrifugal pump is that it can? - pump air, making it self priming A MWS apparatus should be started with all electrical switches in the OFF position in order to: - Start engine without a load A single portable water tank works on fires that require? - Relatively low over flow rates(less than 300 gpm) A year has passed and its time conduct the annual vacuum test on your departments MWS apparatus. You're following the procedures for conducting the vacuum test and you've already checked for and removed foreign matter from the hard suction hose. The next step to perform while conducting the vacuum test is to: - Connect 20 Feet of the hard suction hose to the pump intake connection. An important feature of most screw on intake pressure relief valves is that they? - Have bleeder valves to vent air when a connected line is being charged. An MWS apparatus may have steering system problems if the steering wheel can be rotated (without moving front tires) more than: - 10 degrees As hose diameter increases? - Friction loss decreases Before performing a quick fill operation you should make sure the tank vents are open because failure to have adequate venting during this operation could result in? - A dramatic pressure failure of the tank. Before you drive a MWS apparatus across a bridge you should? - compare the weight of the MWS apparatus to the bridges capacity. Both the fill site time and the dump site time include the time spent? - Maneuvering/positioning Braking Distance -