Areservoir delivers water to a horizontal pipeline 39 long the first 15 m has a diameter of 50 mm, after which it suddenly becomes 75 mm. the outlet of the reservoir is sharp. the flow rate is 2,8 l/s to atmosphere. take f=0,0048 for the 50 mm pipe and f=0,0058 for the 75 pipe. determine the difference between the vater level in the reservoir and the outlet of the pipe.

Steel is coated with a thin layer of ceramic to protect against corrosion. what do you expect to happen to the coating when the temperature of the steel is increased significantly? explain.

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false

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