This air conditioning and refrigeration app has been developed for testing your skills of air conditioning and refrigeration. This app has more than 10,000 multiple choice questions and answers. This air conditioning and refrigeration quiz app suits for all lower, intermediate and higher levels. The questions at all levels will be displayed randomly. The user can improve air conditioning and refrigeration knowledge and user can score well in high school, college and competitive level examinations. This is a free version and you can be used in both offline and online.