Mechanical Engineering Answers

Air initially at 75 psia and 65 0F is compressed to a final pressure of 300 psia and temperature of 320 0F. Find the polytropic exponent for the process.

A closed tank contains 100 lbs of air at a pressure of 200 psia and a temperaure of 180 0F. The air is subsequently cooled to 80 0F. Find the: a.) the initial specific volume, ft3/lbm; b.) the volume of the tank, ft3; c.) the final specific volume, ft3/lbm; d.) the final pressure, psia.

Air initially at 100 0F and 100 psia and occupying a volume of 0.5 ft3 undergoes a reversible non-flow constant temperature process such that the final pressure becomes 20 psia. find the work done, ft.lbf.

During the constant pressure reversible non-flow process with air, the temperature increases from 400 0F to 1600 0F. Show process on the p-V and T-s coordinates and find the heat transfer in BTU/lbm.

During the constant volume reversible non-flow process with air, the temperature drops from 400K to 320K. Show process on the p-V and T-s coordinates and find the heat transfer in kJ/kg.

In the figure shown, the rod ABCD has 10 mm diameter and young s modulus 200GPa and

modulus of rigidity 80 GPa the value of (Ll and L2 and force P) according to your registration

number (see exanple below. Detemine

1-The deflection of point D

2-The deflection of point C

Name 3 products engineers design to be built in the factory ?

i have honda activa. is it possible to change the air fuel ratio ? if yes how?discuss the effect of verrying the air fuel ratio of on thefuel economy and emmision.

what is ic engine

How do i determine the tension in bars connecting an amusement park ship ride (pedulum) to the pivot. Also, how do i determine the reaction force exerted on safety bars which keep passengers strapped in. The ride goes 360 degrees on 6th cycle.