An engineer has designed a valve that will regulate water pressure on an automobile engine.

The valve was tested on 110110 engines and the mean pressure was 4.34.3 lbs/square inch.

Assume the standard deviation is known to be 0.90.9.

If the valve was designed to produce a mean pressure of 4.54.5 lbs/square inch, is there sufficient evidence at the 0.050.05 level that the valve performs below the specifications?

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

Assuming compressible flow of air and that the measurements are done at flagstaff a pitot static tube that gives the difference of total and static pressure measures 0.35 m of mercury. what is the velocity of air? assume the temperature to be 300k. (submit your excel or matlab calculation sheet)

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