Mechanic Refrigeration and Air Conditioner is a simple e-Book for ITI Engineering Course Mechanic Refrigeration and Air Conditioner, First & Second Year, Sem- 1,2,3 & 4, Revised Syllabus in 2018, It contains objective questions with underlined & bold correct answers MCQ covering all topics including all about personal safety and machinery safety, manipulating tools, instruments and equipments in refrigeration workshop, fitting and sheet metal works related to repair refrigeration and air conditioning equipments, electrical area to measure current, voltage, resistance and able to connect star and delta connections, gas welding machines for brazing in refrigeration systems, gas charging, diagnosis & remedial measures in Refrigerator (Direct cool), Frost free refrigerator and Inverter technology Refrigerator, different compressor, DOL, Star Delta starter and changing DOR, refrigerant controls and service evaporator, handling of gas cylinders, CFC/HFC machine with ozone friendly refrigerant, Split A.C (wall mounted), Split A.C (floor, ceiling /cassette mounted Split A.C), Split A.C ( ducted ), multi Split A.C and Inverter Split A.C., gas charging in Car Air Conditioner, water cooled condensers, Evaporative condenser and Cooling tower, water cooler & water dispenser, visible cooler, bottle cooler, deep freezer / display cabinet, ice cube machine and softy machine, HVAC (study of psychrometry, blowers& fans, static and velocity pressure measurements), dampers, Checking airflow, damper, temperature and pressure, operation, De-scaling condenser and cooling tower of central AC plant(Direct and Indirect), VRF / VRV system, Check and service of VRF / VRV system, Connect master unit and IDU, mobile A.C (bus, train) and lots more.