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Railways PYQCBT 2 2017

RRB NTPC · Question 4

Chlorofluorocarbons are not used in ______.

  1. Refrigerators

  2. Mixer and grinders

  3. Aerosol sprays

  4. None of these

Show answer & explanation

Answer: (B) Mixer and grinders

Explanation

Chlorofluorocarbons (CFCs) were used as coolants in refrigerators and air conditioners and as propellants in aerosol sprays. A mixer-grinder is a simple motor appliance and uses no CFCs.