Consider a pipe of 5-cm diameter and 5 m long carrying a discharge of 0.005 m3/s. now the central 2 m length is replaced by a 7.5 cm diameter pipe and the changes being sudden. determine the head loss and the corresponding power assuming that the friction factor of 0.01 for both diameters and a contraction loss coefficient of 0.5

Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise

The higher the astm grain-size number, the coarser the grain is. a)-true b)-false

Manometers are good examples of measuring instruments, nowadays they are not as common as before. a)-capacitive probe gauges b)-gravitational gauges deformation ) gauges d)-digital gauges