Discussion
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- Question
The reading of the pressure gauge fitted on a vessel is 25 bar. The atmospheric pressure is 1.03 bar and the value of 'g' is 9.81 m/s2. The absolute pressure in the vessel is
Options- A. 23.97 bar
- B. 25 bar
- C. 26.03 bar
- D. 34.81 bar
- Correct Answer
- 26.03 bar
- 1. The variables which control the physical properties of a perfect gas are
Options- A. pressure exerted by the gas
- B. volume occupied by the gas
- C. temperature of the gas
- D. all of these Discuss
- 2. One m3 of methane (CH4) requires 2m3 of oxygen and produces 1m3 of carbon dioxide and 2m3 of water or steam.
Options- A. Correct
- B. Incorrect Discuss
- 3. Coke oven gas is obtained by burning coke in an oven.
Options- A. Agree
- B. Disagree Discuss
- 4. The work ratio of a gas turbine plant is given by
Options- A.
- B.
- C.
- D.
Discuss
- 5. One reversible heat engine operates between 1600 K and T2 K and another reversible heat engine operates between T2 K and 400 K. If both the engines have the same heat input and output, then temperature T2 is equal to
Options- A. 800K
- B. 1000K
- C. 1200K
- D. 1400K Discuss
- 6. Select the wrong statement
Options- A. A Joule cycle consists of two constant volume and two isentropic processes.
- B. An Otto cycle consists of two constant volume and two isentropic processes.
- C. An Ericsson cycle consists of two constant pressure and two isothermal processes.
- D. all of the above Discuss
- 7. One kg of hydrogen requires 8 kg of oxygen and produces
Options- A. 1 kg of water
- B. 7 kg of water
- C. 8 kg of water
- D. 9 kg of water Discuss
- 8. The absolute zero pressure will be
Options- A. when molecular momentum of the system becomes zero
- B. at sea level
- C. at the temperature of - 273 K
- D. at the centre of the earth Discuss
- 9. In an extensive property of a thermodynamic system
Options- A. extensive heat is transferred
- B. extensive work is done
- C. extensive energy is utilised
- D. none of these Discuss
- 10. An open system is one in which
Options- A. heat and work crosses the boundary of the system, but the mass of the working substance does not crosses the boundary of the system
- B. mass of the working substance crosses the boundary of the system but the heat and work does not crosses the boundary of the system
- C. both the heat and work as well as mass of the working substance crosses the boundary of the system
- D. neither the heat and work nor the mass of the working substance crosses the boundary of the system Discuss
Thermodynamics problems
Search Results
Correct Answer: all of these
Correct Answer: Correct
Correct Answer: Disagree
Correct Answer:
Correct Answer: 800K
Correct Answer: A Joule cycle consists of two constant volume and two isentropic processes.
Correct Answer: 9 kg of water
Correct Answer: when molecular momentum of the system becomes zero
Correct Answer: none of these
Correct Answer: both the heat and work as well as mass of the working substance crosses the boundary of the system
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