Questions - ................................ PDF

Preview

Summary

...................................

Description

Mechanical Engineering Department ENGR 3571 Thermodynamics Midterm Exam 1 Ful Name:

Spring 2021

Q.1- What is the difference between a property and work or heat? (4 Points) Q.2- Calculate the atmospheric pressure in terms of the height of mercury. Density of mercury is 13.59 g/cm3 and g = 9.81 m/s2. (4 points) Q.3- The list consisting only of intensive properties is specific volume, mass, volume. volume, temperature, pressure. pressure, temperature, specific volume. mass, temperature, pressure. (4 points)

Q.4- Gage pressure indicates the difference between the absolute pressure of a system and the absolute pressure of the atmosphere existing outside the measuring device. True False (4 points)

Q.5- A system having a mass of 1500 lb undergoes a process in which its elevation relative to Earth’s surface increases by 500 ft. If the local acceleration of gravity at its final state is g= 30.0 ft/s2, the weight of the systems at that state is

lbf. (4 points)...