GCAP INDUSTRIAL AMMONIA REFRIGERATION
TRAINING COMPREHENSIVE EXAM PAPER 2026
QUESTIONS WITH ANSWERS GRADED A+
◍ EPA - Environmental Protection Agency
◍ hazardous chemical - Any chemical that is a health hazard or a
physical hazard
◍ MSDS - Material Safety Data Sheet
◍ Hazardous routes of entry - Absorption, Inhalation, Ingestion, and
Injection
◍ PEL - Permissible Exposure Limit
◍ Permissible Exposure Limit (PEL) - the maximum legal limits
established by OSHA for regulated substances. These are based on
employee exposure that is time weighted over an 8 hour work shift.
When these limits are exceeded, employers must take proper steps to
reduce employee exposure. For ammonia, the PEL is 50 ppm.
, ◍ IDHL - Immediately Dangerous to Life and Health
◍ LEL - Lower Explosive Limit, for Ammonia 15%
◍ UEL - Upper Explosive Limit, for Ammonia 28%
◍ Vapor Density - Weight of a given volume of pure vapor or gas
compared to the weight of an equal volume of dry air at the same
temperature and pressure. A ___________ less than 1 indicates a vapor
lighter than air; a ___________ greater than 1 indicates a vapor heavier
than air. for ammonia, .6
◍ Aerosols - a substance consisting of very fine particles of a liquid or
solid suspended in a gas
◍ NRC - National Response Center (800)-424-8802
◍ NH3 - ammonia
◍ -28 degrees F - Ammonia boiling point
◍ exothermic reaction - A reaction that releases energy in the form of
heat
TRAINING COMPREHENSIVE EXAM PAPER 2026
QUESTIONS WITH ANSWERS GRADED A+
◍ EPA - Environmental Protection Agency
◍ hazardous chemical - Any chemical that is a health hazard or a
physical hazard
◍ MSDS - Material Safety Data Sheet
◍ Hazardous routes of entry - Absorption, Inhalation, Ingestion, and
Injection
◍ PEL - Permissible Exposure Limit
◍ Permissible Exposure Limit (PEL) - the maximum legal limits
established by OSHA for regulated substances. These are based on
employee exposure that is time weighted over an 8 hour work shift.
When these limits are exceeded, employers must take proper steps to
reduce employee exposure. For ammonia, the PEL is 50 ppm.
, ◍ IDHL - Immediately Dangerous to Life and Health
◍ LEL - Lower Explosive Limit, for Ammonia 15%
◍ UEL - Upper Explosive Limit, for Ammonia 28%
◍ Vapor Density - Weight of a given volume of pure vapor or gas
compared to the weight of an equal volume of dry air at the same
temperature and pressure. A ___________ less than 1 indicates a vapor
lighter than air; a ___________ greater than 1 indicates a vapor heavier
than air. for ammonia, .6
◍ Aerosols - a substance consisting of very fine particles of a liquid or
solid suspended in a gas
◍ NRC - National Response Center (800)-424-8802
◍ NH3 - ammonia
◍ -28 degrees F - Ammonia boiling point
◍ exothermic reaction - A reaction that releases energy in the form of
heat
