Steam and Gas Turbines Questions and Answers – Physical Characteristics of Combustion and Reactive Mixtures, Pressure Losses

This set of Steam and Gas Turbines Quiz focuses on “Physical Characteristics of Combustion and Reactive Mixtures, Pressure Losses”.

1. Inert character of nitrogen __________ the commercial value of gas.
a) decreases
b) increases
c) remains same
d) none of the mentioned
View Answer

Answer: a
Explanation: Inert character of nitrogen decreases the commercial value of gas. Inert gases can not be used in all circumstances.

2. Carbon dioxide released is __________ in nature.
a) not corrosive
b) corrosive
c) depends on the usage
d) none of the mentioned
View Answer

Answer: b
Explanation: Carbon dioxide released from combustion has corrosive properties.

3. Hydrogen sulfide released during combustion is __________ in nature.
a) not corrosive
b) corrosive
c) depends on the usage
d) none of the mentioned
View Answer

Answer: b
Explanation: Hydrogen sulfide released during combustion have corrosive properties.
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4. In combustion it is assumed that there is ____________
a) atomic attraction
b) no atomic attraction
c) molecular attraction
d) none of the mentioned
View Answer

Answer: a
Explanation: From kinetic theory of gases it is assumed that atomic attractions are negligible.

5. In combustion it is assumed that the number of molecules for unit volume is ___________
a) constant
b) decreased
c) increased
d) none of the mentioned
View Answer

Answer: c
Explanation: From kinetic theory of gases it is assumed that the number of molecules for unit volume are constant. Volume and density does not change on phase change is occurred.

6. In combustion between two shocks motion is rectilinear.
a) True
b) False
View Answer

Answer: a
Explanation: In combustion between two shocks motion is rectilinear.

7. Euken number is introduced in _______ atomic gases.
a) mono
b) poly
c) di
d) none of the mentioned
View Answer

Answer: b
Explanation: Euken number is introduced in poly atomic gases and mono atomic gases also.
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8. For mono atomic gases euken number is approximately _________
a) 5
b) 3
c) 4
d) 2.5
View Answer

Answer: d
Explanation: For mono atomic gases euken number is approximately 2.5

9. Inter changeability of gases gives _________
a) wobbe index
b) euken number
c) wobbe index & euken number
d) none of the mentioned
View Answer

Answer: a
Explanation: Wobbe index gives interchangeability of gases during combustion.
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10. Methane number is used to define auto ignition.
a) True
b) False
View Answer

Answer:a
Explanation: Methane number is used to define auto ignition.

Sanfoundry Global Education & Learning Series – Steam and Gas Turbines.

To practice all areas of Steam and Gas Turbines for quizzes, here is complete set of 1000+ Multiple Choice Questions and Answers.

If you find a mistake in question / option / answer, kindly take a screenshot and email to [email protected]

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Manish Bhojasia - Founder & CTO at Sanfoundry
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

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