Ericson cycle has:
ATwo isothermal and two constant pressure processes
BTwo isothermal and two constant volume processes
CTwo isothermal and two constant entropy processes
DTwo adiabatic, one constant volume and one constant pressure processes
ESAS · Question Bank
Thermodynamics
255 questions · page 3 of 13. Answer in your head first, then check the solution.
A Stirling cycle has:
ATwo adiabatic and two constant volume processes
BTwo adiabatic and two constant pressure processes
CTwo isothermal and two constant pressure processes
DTwo isothermal and two constant volume processes
What is referred to by a control volume?
AAn isolated system
BA closed system
CA fixed region in space
DA reversible process only
Which of the following is used in a thermal power plant?
ABrayton cycle
BReversed Carnot cycle
CRankine cycle
DOtto cycle
The elongation and compression of a helical spring is an example of which process?
AIrreversible process
BReversible process
CIsothermal process
DAdiabatic process
A Bell-Coleman cycle is the reverse of which cycle?
AStirling cycle
BJoule cycle
CCarnot cycle
DOtto cycle
The change that a system undergoes from one equilibrium state to another is known as:
APath
BProcess
CEnthalpy change
DEntropy change
What system is one in which neither mass nor energy crosses the boundaries and is not influenced by the surroundings?
AClosed system
BOpen system
CIsolated system
DAll of these
What is referred to by control volume?
AAn isolated system
BA closed system
CA fixed region in space
DA reversible process only
A Bell-Coleman cycle is the reverse of which of the following cycles?
AStirling cycle
BJoule cycle
CCarnot cycle
DOtto cycle
Brayton cycle has:
ATwo isentropic and two constant volume processes
BTwo isentropic and two constant pressure processes
COne constant pressure, one constant volume and two adiabatic processes
DTwo isothermal, one constant volume and one constant pressure processes
Otto cycle consists of:
ATwo isentropic and two constant volume processes
BTwo isentropic and two constant pressure processes
CTwo adiabatic and two isothermal processes
DTwo isothermal and two constant volume processes
When a system deviates infinitesimally from equilibrium at every instant of its state, it is undergoing what process?
AIsobaric process
BQuasi-static process
CIsometric process
DCyclic process
An ideal gas is compressed isothermally. The enthalpy change is:
AAlways negative
BAlways positive
CZero
DUndefined
The state of a thermodynamic system is always defined by its:
AAbsolute temperature
BProcess
CProperties
DTemperature and pressure
Entropy is the measure of:
AThe internal energy of a gas
BThe heat capacity of a substance
CRandomness or disorder
DThe change in enthalpy of a system
What system is one in which there is no exchange of matter with the surroundings?
AOpen system
BClosed system
CIsolated system
DNonflow system
Which system is completely impervious to its surroundings and allows neither mass nor energy to cross its boundaries?
AOpen system
BClosed system
CIsolated system
DNonflow system
What refers to a system in which there is a flow of mass across its boundaries?
AOpen system
BClosed system
CIsolated system
DNonflow system
When two bodies are in thermal equilibrium with a third body, they are in equilibrium with each other. This is the:
AZeroth law of thermodynamics
BFirst law of thermodynamics
CSecond law of thermodynamics
DThird law of thermodynamics