Thermodynamics - Data Intensity 4 Multiple Questions and Answers.




11.Which of the following is the correct statement?
A. For a given compression ratio both Otto and Diesel cycles have the same efficiency.
B. For a given compression ratio Otto cycle is more efficient than Diesel cycle.
C. For a given compression ratio Diesel cycle is more efficient than Otto cycle.
D. The efficiency of Otto or Diessel cycle has nothing to do with compressioin ratio.

12.The temperature at which the volume of a gas becomes zero is called
A. absolute scale of temperature
B. absolute zero temperature
C. absolute temperature
D. none of these

13.The heating of gas at constant volume is governed by
A. Boyles law
B. Charles law
C. Gay-Lussac law
D. Avogadros law

14.The fuel mostly used in cement industry and in metallurgical processes is
A. wood charcoal
B. bituminous coke
C. pulverised coal
D. coke

15.The ratio of specific heat at constant pressure (cp) and specific heat at constant volume (cv) is always ___ one.
A. equal to
B. less than
C. greater than
D. none of above

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