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This set of Engineering Thermodynamics Multiple Choice Questions & Answers (MCQs) focuses on Engineering Thermodynamics Set 2
Q1 | Which one of the following statements iscorrect?
- a) pressure is an extensiveproperty
- b) density is an intensiveproperty
- c) density is an extensiveproperty
- d) temperature is anextensive property
Q2 | First law of thermodynamics deals with conservation of
- a) mass
- b) momentum
- c) energy
- d) heat
Q3 | Which one of the following processes orsystems does not involve heat
- a) steady processes
- b) isothermal processes
- c) adiabatic processes
- d) thermal processes
Q4 | Thermodynamic equillibrium is completely defined by the specification of
- a) generalised displacements
- b) internal energy
- c) enthalpy
- d) all of the above
Q5 | ………. Is not a property of the system
- a) pressure
- b) temperature
- c) heat
- d) specific volume
Q6 | In which of the following processes theexternal work done is not zero?
- a) throttling
- b) free expansion
- c) constant volume process
- d) constant pressureprocess
Q7 | The extension & compression of a helicalspring is an example of
- a) irreversible process
- b) reversible process
- c) isothermal process
- d) adiabatic process
Q8 | In all irrevesible processes, the entropy ofthe system
- a) remains unaltered
- b) reduces to zero
- c) increases
- d) none of the above
Q9 | Temperature of a gas is produced due towhich of the following?
- a) attraction of molecules
- b) repulsion of molecules
- c) kinetic energy of molecules
- d) all of the above
Q10 | The same volume of all gases at same temperatureand pressure wouldrepresent their
- a) specific gravity
- b) densities
- c) specific weights
- d) molecular weights
Q11 | First law of thermodynamics gives relationship between which of thefollowing?
- a) heat & internal energy
- b) heat & work
- c) heat, work & properties of the system
- d) various thermodynamics processes
Q12 | The temperature in a process in which work is done by expanding a gas underadiabatic condition will
- a) decrease
- b) increase
- c) first decrease & then increase
- d) remain unaltered
Q13 | On which of the following laws measurement of temperature is based?
- a) joule\s law
- b) zeroth law of thermodynamics
- c) first law of thermodynamics
- d) second law of thermodynamics
Q14 | The perpetual motion of the first kind is represented by which of the following?
- a) a machine that continuously creates itsown energy
- b) an engine with 100 percent efficiency
- c) a fully reversible engine
- d) none of the above
Q15 | Which of the following statements regarding a perpetual motion machine is correct?
- a) it is an in efficient machine
- b) it is non-thermodynamic machine
- c) it is thermodynamic machine
- d) it is hypothetic machine whose operation would violate the laws of thermodynamics
Q16 | Which of the following statements, regarding a property of system, iscorrect?
- a) it is path function
- b) it is a point function
- c) it is always of intensive type
- d) none of the above
Q17 | ……….. Is an intensive property
- a) specific volume
- b) total volume
- c) total mass
- d) total energy of a system
Q18 | A system is said to be in thermodynamicequilibrium if it is in
- a) chemical equilibrium
- b) thermal equilibrium
- c) mechanical equilibrium
- d) all of the above
Q19 | The basis for measuring thermodynamic property of temperature is given by ……. Law of thermodynamics
- a) zeroth
- b) first
- c) second
- d) third
Q20 | As differentials, heat & work would bedescribed mathematically as
- a) exact
- b) inexact
- c) point function
- d) discontinuity
Q21 | Which of the following is an openthermodynamic system?
- a) pressure cooker
- b) manual ice cream freezer
- c) centrifugal pump
- d) none of the above
Q22 | ……… is a non-quasistatic process
- a) free expansion of gas
- b) expansion of gas in a cylinder under constantpressure
- c) rapid leakage of air from a bicycle tyre
- d) gradual compression of gas inside a piston-cylinderarrangement
Q23 | Choose the correct statement
- a) pressure, temp. &entropy are extensive properties
- b) pressure, temp. &entropy are intensive properties
- c) pressure, volume & temp. are extensive properties
- d) volume & entropy are extensive properties
Q24 | The first law of thermodynamics defines
- a) entropy
- b) internal energy
- c) work
- d) heat
Q25 | A process becomes irreversible due to
- a) work performed by thesystem
- b) work performed uponthe system
- c) heat supplied to the system
- d) friction in the system