Question 139Refrigeration & AC - QMED
70% to passStandard filter/driers used in many commercial type refrigeration units may contain what type of substance?
Aactivated charcoal
Balcohol based liquid drying agents
Cactivated alumina or silica gel desiccant beads
Dall of the above may be used
AI Explanation
The correct answer is C) activated alumina or silica gel desiccant beads. Standard filter/driers used in many commercial refrigeration units typically contain activated alumina or silica gel desiccant beads. These materials are effective at absorbing and removing moisture from the refrigerant system, which helps prevent ice buildup and damage to the compressor and other components. Activated charcoal (option A) and alcohol-based liquid drying agents (option B) are not commonly used in these types of filter/driers.
Related Questions
Q@q.QuestionNumber:Which of the conditions listed may be an indication of an excessive amount of re... Q@q.QuestionNumber:Heat is removed from the refrigerant circulating through the refrigeration syste... Q@q.QuestionNumber:The safety heads of most large reciprocating compressors used in refrigeration s... Q@q.QuestionNumber:A small obstruction at the thermostatic expansion valve inlet will result in whi... Q@q.QuestionNumber:A refrigeration system is equipped with a reciprocating compressor and a water-c...
Ready to test your knowledge?
Take a Refrigeration & AC - QMED Practice ExamOfficial Resources
Want to practice with timed exams?
Download Coast Guard Exams for the full exam experience.
Get the App