Question 1

Which quantity listed below is an integral quantity?

Accepted Answer

A)   Velocity
B)   Pressure
C)   Temperature
D)   MassE) B) and C)
F) A) and D)

Question 2

If the control volume equation for a flow is η2ρ2A2V2=η1ρ1A1V1, the flow may be: 	ext { If the control volume equation for a flow is } \eta _ { 2 } ho _ { 2 } A _ { 2 } V _ { 2 } = \eta _ { 1 } ho _ { 1 } A _ { 1 } V _ { 1 } 	ext {, the flow may be: } If the control volume equation for a flow is η2​ρ2​A2​V2​=η1​ρ1​A1​V1​, the flow may be:

Accepted Answer

A)   Uniform flow into and from a fixed volume
B)   Steady, uniform flow in a pipe
C)   Uniform flow in a conduit
D)   Steady, one-dimensional flow in a channel E) A) and B)
F) A) and C)

Question 3

For a fixed control volume, the reason why ddt∫c.. ρηdV=∫c. .∂∂t(ρη) dV is: 	ext { For a fixed control volume, the reason why } \frac { d } { d t } \int _ { 	ext {c.. } } ho \eta d V = \int _ { 	ext {c. } . } \frac { \partial } { \partial t } ( ho \eta )  d V 	ext { is: } For a fixed control volume, the reason why dtd​∫c.. ​ρηdV=∫c. .​∂t∂​(ρη) dV is:

Accepted Answer

A)   The integrand is independent of time
B)   The limits of integration are independent of time
C)   The flow is a steady flow
D)   The quantity ρη is independent of position E) A) and D)
F) B) and D) B

Question 4

If kinetic energy is desired, the variable  η in Eq. 4.2.6\eta 	ext { in Eq. } 4.2 .6η in Eq. 4.2.6  in Eq. 4.2.6 would be represented by:

Accepted Answer

A)    VVV 
B)    V2V ^ { 2 }V2 
C)    V2/2V ^ { 2 } / 2V2/2 
D)    mV2/2m V ^ { 2 } / 2mV2/2E) None of the above
F) A) and D) C

Question 5

Which property listed below is an intensive property?

Accepted Answer

A)   Internal energy
B)   Mass
C)   Density
D)   EnthalpyE) None of the above
F) A) and D)

Exam 8: External Flows

Which quantity listed below is an integral quantity?

Correct Answer
verified

$\text { If the control volume equation for a flow is } \eta _ { 2 } \rho _ { 2 } A _ { 2 } V _ { 2 } = \eta _ { 1 } \rho _ { 1 } A _ { 1 } V _ { 1 } \text {, the flow may be: }$

Correct Answer
verified

$\text { For a fixed control volume, the reason why } \frac { d } { d t } \int _ { \text {c.. } } \rho \eta d V = \int _ { \text {c. } . } \frac { \partial } { \partial t } ( \rho \eta ) d V \text { is: }$

Correct Answer
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B

If kinetic energy is desired, the variable $\eta \text { in Eq. } 4.2 .6$ in Eq. 4.2.6 would be represented by:

Correct Answer
verified
C

Which property listed below is an intensive property?

Correct Answer
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Exam 8: External Flows

Which quantity listed below is an integral quantity?

Correct AnswerverifiedShow Answer

Correct Answerverified

Correct AnswerverifiedB

If kinetic energy is desired, the variable η in Eq. 4.2.6\eta \text { in Eq. } 4.2 .6η in Eq. 4.2.6 in Eq. 4.2.6 would be represented by:

Correct AnswerverifiedC

Which property listed below is an intensive property?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
B

If kinetic energy is desired, the variable $\eta \text { in Eq. } 4.2 .6$ in Eq. 4.2.6 would be represented by:

Correct Answer
verified
C

Correct Answer
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