Mechanical Engineering - Thermodynamics

1.
Which of the following gas has the highest calorific value?
Coal gas
Producer gas
Mond gas
Blast furnace gas
Answer: Option
Explanation:
No answer description is available. Let's discuss.

2.
The oxygen atom is __________ times heavier than the hydrogen atom.
2
4
8
16
Answer: Option
Explanation:
No answer description is available. Let's discuss.

3.
When the gas is cooled at constant pressure,
its temperature increases but volume decreases
its volume increases but temperature decreases
both temperature and volume increases
both temperature and volume decreases
Answer: Option
Explanation:
No answer description is available. Let's discuss.

4.
The work ratio of a gas turbine plant is given by
Answer: Option
Explanation:
No answer description is available. Let's discuss.

5.
As per Charles' law, the volume of a given mass of a perfect gas varies __________ as its absolute temperature, when the absolute pressure remains constant.
directly
indirectly
Answer: Option
Explanation:
No answer description is available. Let's discuss.