Results of Quiz 5

Results of Quiz 5 - Question 1 Whether or not a system is...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Question 1 Whether or not a system is open or closed depends on how the boundaries of the system are chosen? CorrectAnswers Percent Answered X True 94.118% False 5.882% Question 2 Total mass entering a control volume during a time interval minus the total mass leaving the control volume during the same time interval is CorrectAnswers Percent Answered the rate of change of mass per unit time 2.941% X the net change in mass within the control volume during the time interval 95.588% zero 1.471% zero only for compressible fluids 0% Question 3 Adiabatic means CorrectAnswers Percent Answered isothermal 0% constant volume 1.471% constant pressure 0% X zero heat flow 98.529% Question 4 Flow work is CorrectAnswers Percent Answered pressure times velocity 1.471% X pressure times volume 97.059% π *(flow energy) 0% none of the above 1.471% Question 5 Steady flow CorrectAnswers Percent Answered requires d(Esys)/dt = zero 1.471% applies when the sum of all the flows in equals the sum of all the flows out 8.824% means the sum of energy carried in by heat transfer, work and mass flow must equal the sum of energy carried out by heat transfer, work and mass flow. 1.471% X all of the above 86.765% none of the above 1.471% Question 6 One steady flow device is a turbine, it
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 09/08/2009 for the course ENGR 225 taught by Professor Landau during the Spring '08 term at Case Western.

Page1 / 4

Results of Quiz 5 - Question 1 Whether or not a system is...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online