Related Questions

The expression for the work done for a reversible polytropic process can be used to obtain the expression for work done for all processes, except reversible __________ process.
A Isobaric
B Isothermal
C Adiabatic
D None of these
In regenerator type heat exchanger, heat transfer takes place by
A Direct mixing of hot and cold fluids
B A complete separation between hot and cold fluids
C Flow of hot and cold fluids alternately over a surface
D Generation of heat again and again
Gas turbine cycle with regenerator
A Increases thermal efficiency
B Allows high compression ratio
C Decreases heat loss is exhaust
D Allows operation at very high altitudes
The gas turbine cycle with regenerator improves
A Work ratio
B Thermal efficiency
C Avoid pollution
D None of these
Which of the following processes can not be made reversible even under ideal condition of operation?
A Free expansion of a gas
B Compression of air in a compressor
C Expansion of steam in a turbine
D All of the above
A teacher can help adolescent to overcome his special problems, and help him to adjust to the environment. Which of the following attitude, he should not made?
A He should impart right information about sex
B He should redirect the energies of the adolescent to fruitful channels through sports and other constructive activities
C He should have unsympathetic attitude towards others
D He should have right information about sex
Which of the following is not a reversible process ?
A Expansion of an ideal gas against constant pressure
B Atmospheric pressure vaporisation of water at 100°C
C Solution of NaCl in water at 50°C
D None of these
Which of the following is a reversible non-flow process?
A Isochoric process
B Isobaric process
C Hyperbolic process
D All of these
Which of the following is not correct for a reversible adiabatic process?
A $${\text{T}}{{\text{V}}^{\gamma - 1}}$$  = constant
B $${{\text{P}}^{1 - \gamma }}.{{\text{T}}^{\text{Y}}}$$  = constant
C $${\text{P}}{{\text{V}}^\gamma }$$  = constant
D None of these
কোন সিস্টেমের অবস্থার পরিবর্তনের ক্ষেত্রে Reversible Process একটি-
A একমুখী প্রক্রিয়া
B ধীর প্রক্রিয়া
C দ্রুত প্রক্রিয়া
D স্বতঃস্ফূর্ত প্রক্রিয়া

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