A single acting reciprocating pump has cylinder diameter of 200 mm and stroke length 300 mm he suction pipe is 100 mm diameter with 8 m long. The punp draws water 4 m below the cylinder axis. If the speed of the pump is 30 rpm. Find the pressure head on the piston at the beginning, middle and end of the suction stroke Notes: 1) The friction factor -0.01 and the atmospheric pressure head is 10.3 m of water. 2) The general pistion head equation is given by: Hpiston-Hatm+Zs-has-his

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Unit Conversion

Standard units are also called SI units. SI units are used for measuring a physical quantity satisfying certain conditions. There are two types of units: fundamental units and derived units. Fundamental units are physical quantities that are independent, that is, they do not depend on other quantities like mass, length, or time. There are plenty of quantities in our lives which need to be measured and compared. Measuring is the comparison of a particular physical quantity with its reference value. A unit is a measure of a fixed physical quantity. A physical quantity is the product of a unit and the numerical value we need to compare with.