HVAC Quiz: Heating, Ventilation And Air Conditioning! Toughest Trivia Questions

216 Questions | Total Attempts: 2865

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HVAC Quiz: Heating, Ventilation And Air Conditioning! Toughest Trivia Questions - Quiz

This is the toughest HVAC Quiz based on Heating, Ventilation and Air Conditioning. Do you think that you have done adequate revision to tackle it or might you be in need of some practice? If you are not so sure all you need to do is take up this quiz and keep an eye out for others on the topic so as to perfect your understanding. All the best!


Questions and Answers
  • 1. 
    What is the purpose of air conditioning?
    • A. 

      To control the humidity in a building

    • B. 

      To clean the air in a building

    • C. 

      To control the temperature in a building

    • D. 

      All of the above

  • 2. 
    Who developed the first modern air conditioning system?
    • A. 

      Willis Carrier

    • B. 

      James Trane

    • C. 

      Harold Goodman

    • D. 

      Dave Lennox

  • 3. 
    Air conditioning window units for homes were first available in
    • A. 

      1950s

    • B. 

      1960s

    • C. 

      1940s

    • D. 

      1970s

  • 4. 
    What classification would a 100,000 Btuh furnace most likely be?
    • A. 

      Commercial 

    • B. 

      Residential 

    • C. 

      Industrial 

    • D. 

      All of the above

  • 5. 
    What is the ICE exam?
    • A. 

      Industry Competency Exam given to students to test their knowledge of fundamentals

    • B. 

      Instantaneous Calibration Exam used to check the accuracy of test instruments

    • C. 

      A performance test all the ice machines must pass to become EPA certified 

    • D. 

      Industrial cooling Efficiency is a test performed to check industrial cooling equipment

  • 6. 
    What is the purpose of the Refrigeration Service Engineer's Society, RSES?
    • A. 

      To regulate who can work in the refrigeration service field

    • B. 

      To establish standards and codes for good refrigeration engineering practices 

    • C. 

      To educate refrigeration service technicians and service managers

    • D. 

      To train engineers who design refrigeration systems

  • 7. 
    Which type of ladders are safest to use in any working conditions?
    • A. 

      Aluminum ladders

    • B. 

      Any ladder that is structurally sound is safe as long as the power tool is properly gounded

    • C. 

      Fiberglass ladders

    • D. 

      All steel folding ladders

  • 8. 
    Explain how a non-toxic, nonflammable refrigerant can be dangerous.
    • A. 

      Most common refrigerants decompose on contact with air to form toxic substances

    • B. 

      Most common refrigerants decompose on contact with air to form flammable substances

    • C. 

      Concentrated refrigerant can cause euphoric highs that lead to irrational and dangerous behavior

    • D. 

      The refrigerant can replace all the air in a space, depriving you of oxygen

  • 9. 
    What is the purpose of SDS sheets?
    • A. 

      To provide information on what types of material a product is compatible with

    • B. 

      To communicate the substance's hazards and how they can be avoided

    • C. 

      To provide instructions on possible uses of a product 

    • D. 

      To prevent lawsuits by including injury disclaimers and liability waivers

  • 10. 
    When should you reqd a product's safety Data Sheet (SDS)?
    • A. 

      Whenever an OSHA inspector is on the job site

    • B. 

      After completing the job so you can file all the required safety reports

    • C. 

      Whenever you accidentally contact the material to find out what treatment is recommended 

    • D. 

      Before using the material so you are aware of its hazards

  • 11. 
    What gases are safe to use for refrigerant system pressure testing?
    • A. 

      Compressed air 

    • B. 

      Acetylene

    • C. 

      Oxygen

    • D. 

      Dry nitrogen

  • 12. 
    What equipment should always be used when using nitrogen?
    • A. 

      An expansion valve to insure that no liquid nitrogen enters the compressor

    • B. 

      A fire extinguisher in case the nitrogen catches on fire

    • C. 

      A pressure regulator and relief valve

    • D. 

      All of the above

  • 13. 
    Matter is defined as
    • A. 

      Anything that has mass and takes up space

    • B. 

      Physical objects that can be seen

    • C. 

      Anything that has weight, can be seen, and emits energy

    • D. 

      Physical objects that emit energy

  • 14. 
    What is the relationship between atoms and molecules?
    • A. 

      Atoms are made up of molecules

    • B. 

      Molecules are made up of atoms

    • C. 

      They are both weightless

    • D. 

      They are two words for the same thing

  • 15. 
    The three common states of matter are
    • A. 

      Radiant, conductive, and convective

    • B. 

      Sensible, latent, and specific

    • C. 

      Solid, liquid, and gas

    • D. 

      Sub-atomic, atomic, and molecular 

  • 16. 
    If a gas with a specific gravity of 1.3 is released in a room, will it be more likely to be found near the ceiling or near the floor?
    • A. 

      It would be found at both the ceiling and the floor because a gas with a high specific gravity would fill up the room

    • B. 

      The specific gravity of a gas does not affect its position in a room relative to other gases

    • C. 

      Near the floor because it's specific gravity is greater than 1

    • D. 

      Near the ceiling because it's specific gravity is greater than 1

  • 17. 
    What is the AHRI "A" performance testing condition for air cooled air conditioning equipment?
    • A. 

      90 degrees F outside ambient, 85 degrees F indoor dry bulb, 70 degrees F indoor wet bulb

    • B. 

      100 degree outside ambient, 75 degree F indoor dry bulb, 72 degree F indoor wet bulb

    • C. 

      95 degrees F outside ambient, 75 degrees indoor dry bulb, 75 degrees indoor wet bulb

    • D. 

      95 degrees outside ambient, 80 degree F indoor dry bulb, 67 degree F indoor wet bulb

  • 18. 
    How does pressure affect the boiling temperature of a liquid
    • A. 

      The pressure cannot change once a liquid begins to boil.

    • B. 

      Increasing the pressure increases the boiling point. 

    • C. 

      Decreasing the pressure increases the boiling point.

    • D. 

      Pressure has no effect on the boiling temperature of a liquid. 

  • 19. 
    The temperature of the water formed by melting ice is 
    • A. 

      32 F

    • B. 

      33 F

    • C. 

      31 F

    • D. 

      It can be any temperature above 32 F

  • 20. 
    The law of conservation of matter states that 
    • A. 

      Matter should not be wasted.

    • B. 

      Matter cannot be created or destroyed.

    • C. 

      Only "green" matter should be used for installing HVACR systems. 

    • D. 

      An equal amount of matter is always created somewhere whenever matter is destroyed. 

  • 21. 
    What physical change of state is the opposite of evaporation?
    • A. 

      Melting

    • B. 

      Sublimation

    • C. 

      Freezing

    • D. 

      Condensation

  • 22. 
    Three forms of energy used in heating and air conditioning include
    • A. 

      Electrical, Magnetic, Mechanical

    • B. 

      Solid, liquid, and gass

    • C. 

      Preheat, setpoint, postheat

    • D. 

      Saturation, subcooling, superheat

  • 23. 
    What units are most commonly used to measure heat quantity in the United States?
    • A. 

      BTUs

    • B. 

      Degrees Fahrenheit

    • C. 

      Joules

    • D. 

      Kilocalories

  • 24. 
    What units are most commonly used to measure heat intensity in the United States?
    • A. 

      Kilocalories

    • B. 

      Joules

    • C. 

      BTUs

    • D. 

      Degrees Fahrenheit

  • 25. 
    How many BTUs will a 10-kilowatt heater produce if operated for an hour?
    • A. 

      10 kw/3410 BTUs = 2.93 BTUs

    • B. 

      10 kw x 1000w/kw x 1 hour x 3.410 BTUs = 34100 BTUs

    • C. 

      10 kw 1 hour = 10,000 BTUs

    • D. 

      (10 kw / 3410) x 60 = 176 BTUs

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