Engineering Thermodynamics Set 2

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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