Identify the incorrect statement, from the following options:

Irreversibility is introduced into the desired isentropic compression in an air compressor by _____.

This question was previously asked in
SSC JE ME Previous Paper 7 (Held on: 25 Sep 2019 Evening)
View all SSC JE ME Papers >
  1. Heat loss from compressor walls
  2. Rapid compression
  3. Mechanical losses in bearings
  4. Friction between air and cylinder walls

Answer (Detailed Solution Below)

Option 3 : Mechanical losses in bearings
Free
RRB JE CBT I Full Test - 23
14.3 K Users
100 Questions 100 Marks 90 Mins

Detailed Solution

Download Solution PDF

Explanation:

Factors which makes process irreversible:

  • Friction present between air and the cylinder walls
  • Heat transfer through a finite temperature difference (Heat loss from the compressor walls)
  • Rapidity (rapid compression of the gas)
  • Mixing of two dissimilar fluids
Mechanical losses do not make the process irreversible.
Latest SSC JE ME Updates

Last updated on May 28, 2025

-> SSC JE ME Notification 2025 will be released on June 30. 

-> The SSC JE Mechanical engineering application form will be available from June 30 to July 21. 

-> SSC JE 2025 CBT 1 exam for Mechanical Engineering will be conducted from October 2 to 31. 

-> SSC JE exam to recruit Junior Engineers in different disciplines under various departments of the Central Government.

-> The selection process of the candidates for the SSC Junior Engineer post consists of Paper I, Paper II, Document Verification, and Medical Examination.

-> Candidates who will get selected will get a salary range between Rs. 35,400/- to Rs. 1,12,400/-.

-> Candidates must refer to the SSC JE Previous Year Papers and SSC JE Civil Mock Test, SSC JE Electrical Mock Test, and SSC JE Mechanical Mock Test to understand the type of questions coming in the examination.

Get Free Access Now
Hot Links: teen patti joy apk teen patti 50 bonus teen patti flush