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Introduction and Syllabus (in Hindi)
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It is an introduction to the RAC course.Strategy for preparation is also discussed for smooth study process.

Gaurav Joshi
Mechanical Engineer. Secured AIR 5 in ESE & AIR 47 in GATE. Also cleared BARC,ONGC,ISRO. Worked for BARC, HITACHI.Guitar player & Vocalist

Unacademy user
so so beautiful explained
sir AC ka course update nhi kiye h kya sir?
sir!what about use of wet compression system with pump (in place of compressor)
Gaurav Joshi
4 months ago
Wet doesn't mean it is complete liquid.
sir kya m iss course ko alp and technician ke liye kr skta hu
Delivered in very good way
  1. Refrigeration & Air- Conditioning (RAC) (For ESE AND GATE) GAURAV JOSHI


  2. About me GAURAV JOSHI B. Tech in Mechanical Engineering (2010-14) o Cleared ESE 2017 - AIR 5 Cleared GATE 2017-AIR 47 Worked For BARC in 2017 Taught Physics in Allen Career Institute and Aakash- Institute from 2014-16 Worked for Hitachi (Air- Conditioners) in 2014 o


  3. About the course ooOooOOO 1. Basic Concepts of RAC 2. Numerical Problems and solutions Highlights: The syllabus is defined by UPSC for its technical paper and Last year problems are also available. Developing approach solve problem is most important for any competition


  4. Course Contents oOOOo OO 1. Introduction to Refrigeration & Basic knowledge of Thermodynamics required 2. Vapor Compression Refrigeration 3. Vapor Absorption Refrigeration 4. Refrigerants: Types & Properties 5. Refrigeration EquipmentCompressors, Evaporator, Condensers, Expansion Devices 6. Air Conditioning Properties of moist air 7. Psychrometric Charts


  5. RAC in ESE & GATE oOOOo OO It is application part of Thermo-Dynamics, So not very difficult. Scoring Subject. In ESE prelims 8-10 marks out of 150 In ESE mains: 50-70 marks out of 600. In GATE: 4-5 marks out of 100


  6. Preparation Strategy 1. First learn theory, Apply concepts in last year 2. Mark difficult and important problems, try 3. Don't pile up things and plan according to oOOOo OO problems. them in next revision plan your capacity


  7. THANK YOU