ESAS · Question Bank

Thermodynamics

255 questions · page 6 of 13. Answer in your head first, then check the solution.

#101
Open system usually encloses which of the ff devices?
ACompressor
BTurbine
CNozzle
Dall of these
#102
The boundaries of a control volume, which may either real or imaginary, is called _________
Acontrol boundary
Bcontrol system
Cinterface
Dcontrol surface
#103
Any characteristic of a thermodynamics system is called a _______
Aproperty
Bprocess
Cphase
Dcycle
#104
How are thermodynamic properties classified?
APhysical and chemical
BIntensive and extensive
CReal and imaginary
DHomogenous and heterogenous
#105
Which is NOT an intensive property of thermodynamics?
ATemperature
BMass
CPressure
DDensity
#106
Which is NOT an extensive property of thermodynamics?
ADensity
BMass
CVolume
DEnergy
#107
Extensive properties per unit mass are called _________
Aspecific properties
Brelative properties
Cunit properties
Dphase properties
#108
A system is in __________ equilibrium if theres is no change in pressure at any point if the system with time
Apressure
Bthermal
Cmechanical
Dphase
#109
If a system involves two phases, it is in __________ equilibrium when the mass of each phase reaches an equilibrium level and stays there
Achemical
Bthermal
Cmechanical
Dphase
#110
A system is in _________ equilibrium if its chemical composition does not change with time, i.e., no chemical reactions occurs
Achemical
Bthermal
Cmechanical
Dphase
#111
"The state of a simple compressible system is completely specified by two independent, intensive properties". This is known as ________
AEquilibrium postulate
BState postulate
CEnvironment postulate
DCompressible system postulate
#112
Without electrical, mechanical, gravitational, surface tension and motion effects, a system is called _______ system
Asimple
Bsimple compressible
Ccompressible
Dindependent
#113
What refers to any change that a system undergoes from one equilibrium state to another equilibrium state?
AProcess
BPath
CPhase
DCycle
#114
What refers to the series of states through which a system passes during a process?
APath
BPhase
CCycle
DDirection
#115
What is a process in which the system remains infinitesimally closed to an equilibrium state at all times?
APath equilibrium process
BCycle equilibrium process
CPhase equilibrium process
DQuasi-state or quasi-equilibrium process
#116
A closed system may refer to _____
Acontrol mass
Bcontrol volume
Ccontrol energy
Dcontrol temperature
#117
An open system may refer to ________
Acontrol mass
Bcontrol volume
Ccontrol energy
Dcontrol temperature
#118
A system is said to be in thermodynamic equilibrium if it maintains ________ equilibrium
Amechanical and phase
Bthermal and chemical
Cthermal, mechanical, and chemical
Dthermal, phase, mechanical, and chemical
#119
What is a process with identical end states called?
ACycle
BPath
CPhase
DEither path or phase
#120
The prefix "iso" used to designate a process means ________
Acannot be interchanged
Bremains constant
Capproximately equal
Dslight difference

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