Practice Advanced Aerodynamics Multiple Choice Questions with Answers Quiz-1 - MCQGeeks.com

Q.1.

The equation of the second law of thermodynamics says that____

a) Total change in entropy is always zero
b) We cannot find entropy for an irreversible process
c) Entropy change is defined as the heat added in an irreversible process
d) Entropy is a state process

Q.2.

Which is the correct result according to the second law of thermodynamics?

a) Total change in entropy is always zero
b) Total change in entropy in a reversible process is always zero
c) Total change in entropy in an irreversible process is always zero
d) Total change in entropy for an irreversible process is negative

Q.3.

For a block of ice on a plate, second law of thermodynamics says that____

a) The plate will get hotter
b) Ice will get cooler
c) Cannot give conclusive direction
d) Ice will melt

Q.4.

First law when expressed in terms of entropy takes the form_____

a) T ds = de – p dv
b) T ds = dh – p dv
c) T ds = de + p dv
d) T ds = dh + p dv

Q.5.

For a calorically perfect gas, entropy is not________

a) State function
b) Conserved in a reversible process
c) A function of two thermodynamic variables
d) Zero always

Q.6.

An isentropic process is restrictive and is not feasible in real life.

a) False
b) True

Q.7.

Flow over a rocket outside the boundary layer is isentropic.

a) False
b) True