QUESTIONS AND ANSWERS
What is the primary purpose of Personal Protective Equipment (PPE)? - ANS To minimize
exposure to specific hazards and ensure personal safety.
Which organization sets standards for PPE? - ANS Occupational Safety and Health
Administration (OSHA)
What is the most crucial safety practice when using tools? - ANS Using the right tool for the
right job.
What should you do before using a tool? - ANS Inspect the tool for any damage and read the
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owner's manual to understand its operation and limitations.
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, What should you avoid when using power tools? - ANS Using power tools in wet
surroundings or near flammable vapors.
What is the significance of the ASHRAE classification system for refrigerants? - ANS It
classifies refrigerants based on their flammability and toxicity, helping determine appropriate
safety measures and tool usage.
What is the impact of early-generation refrigerants like CFCs and HCFCs on the environment? -
ANS They can deplete the ozone layer, which protects the Earth from harmful ultraviolet
radiation.
What is ODP? - ANS ODP stands for Ozone Depletion Potential. It measures a substance's
ability to deplete the ozone layer.
What is the primary cause of stratospheric ozone depletion? - ANS Human-made chemicals,
particularly CFCs and HCFCs.
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