Mechanical Engineering Exam  >  Mechanical Engineering Questions  >  In a reciprocating air compressor the compres... Start Learning for Free
In a reciprocating air compressor the compression works per kg of air. 
  • a)
    Increases as clearance volume increases
  • b)
    Decreases as clearance volume increases 
  • c)
    Is independent of clearance volume 
  • d)
    Increases with clearance volume only for multistage compressor. 
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
In a reciprocating air compressor the compression works per kg of air....
Compression work per kg. of air increases as clearance volume increases. 
View all questions of this test
Most Upvoted Answer
In a reciprocating air compressor the compression works per kg of air....
Reciprocating Air Compressor and Compression per kg of Air

A reciprocating air compressor is a type of compressor that uses reciprocating motion to compress air. It has a piston that moves back and forth inside a cylinder, creating a vacuum that draws in air and then compresses it. The compression ratio is the ratio of the volume of air before compression to the volume of air after compression. The compression works per kg of air.

Effect of Clearance Volume on Compression

The clearance volume is the volume of the cylinder when the piston is at the top of its stroke. It is the volume that is not swept by the piston during compression. The clearance volume has an effect on the compression ratio and hence the compression per kg of air. The effect of clearance volume on compression is as follows:

- Increases as clearance volume increases: The compression per kg of air increases as the clearance volume increases. This is because the volume of air that is compressed is less when the clearance volume is smaller. With a larger clearance volume, the volume of air that is compressed is more, leading to a higher compression ratio and higher compression per kg of air. Hence, option 'A' is the correct answer.

- Decreases as clearance volume increases: This is the opposite of the above scenario. When the clearance volume is larger, the compression ratio decreases, leading to a lower compression per kg of air.

- Is independent of clearance volume: This scenario is not possible as the clearance volume has a direct effect on the compression ratio and hence the compression per kg of air.

- Increases with clearance volume only for multistage compressor: In a multistage compressor, the clearance volume has a different effect. The compression per kg of air increases with clearance volume only up to a certain point, beyond which it starts decreasing. This is because a larger clearance volume leads to a higher compression ratio only up to a certain point, beyond which the temperature rise during compression becomes significant and reduces the compression ratio.

Conclusion

In conclusion, the compression per kg of air in a reciprocating air compressor increases as the clearance volume increases. This is because a larger clearance volume leads to a higher compression ratio and hence higher compression per kg of air.
Attention Mechanical Engineering Students!
To make sure you are not studying endlessly, EduRev has designed Mechanical Engineering study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Mechanical Engineering.
Explore Courses for Mechanical Engineering exam

Top Courses for Mechanical Engineering

In a reciprocating air compressor the compression works per kg of air.a)Increases as clearance volume increasesb)Decreases as clearance volume increasesc)Is independent of clearance volumed)Increases with clearance volume only for multistage compressor.Correct answer is option 'A'. Can you explain this answer?
Question Description
In a reciprocating air compressor the compression works per kg of air.a)Increases as clearance volume increasesb)Decreases as clearance volume increasesc)Is independent of clearance volumed)Increases with clearance volume only for multistage compressor.Correct answer is option 'A'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about In a reciprocating air compressor the compression works per kg of air.a)Increases as clearance volume increasesb)Decreases as clearance volume increasesc)Is independent of clearance volumed)Increases with clearance volume only for multistage compressor.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In a reciprocating air compressor the compression works per kg of air.a)Increases as clearance volume increasesb)Decreases as clearance volume increasesc)Is independent of clearance volumed)Increases with clearance volume only for multistage compressor.Correct answer is option 'A'. Can you explain this answer?.
Solutions for In a reciprocating air compressor the compression works per kg of air.a)Increases as clearance volume increasesb)Decreases as clearance volume increasesc)Is independent of clearance volumed)Increases with clearance volume only for multistage compressor.Correct answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Mechanical Engineering. Download more important topics, notes, lectures and mock test series for Mechanical Engineering Exam by signing up for free.
Here you can find the meaning of In a reciprocating air compressor the compression works per kg of air.a)Increases as clearance volume increasesb)Decreases as clearance volume increasesc)Is independent of clearance volumed)Increases with clearance volume only for multistage compressor.Correct answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of In a reciprocating air compressor the compression works per kg of air.a)Increases as clearance volume increasesb)Decreases as clearance volume increasesc)Is independent of clearance volumed)Increases with clearance volume only for multistage compressor.Correct answer is option 'A'. Can you explain this answer?, a detailed solution for In a reciprocating air compressor the compression works per kg of air.a)Increases as clearance volume increasesb)Decreases as clearance volume increasesc)Is independent of clearance volumed)Increases with clearance volume only for multistage compressor.Correct answer is option 'A'. Can you explain this answer? has been provided alongside types of In a reciprocating air compressor the compression works per kg of air.a)Increases as clearance volume increasesb)Decreases as clearance volume increasesc)Is independent of clearance volumed)Increases with clearance volume only for multistage compressor.Correct answer is option 'A'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice In a reciprocating air compressor the compression works per kg of air.a)Increases as clearance volume increasesb)Decreases as clearance volume increasesc)Is independent of clearance volumed)Increases with clearance volume only for multistage compressor.Correct answer is option 'A'. Can you explain this answer? tests, examples and also practice Mechanical Engineering tests.
Explore Courses for Mechanical Engineering exam

Top Courses for Mechanical Engineering

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev