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BOMA-HVAC CORRECT QUESTIONS & ANSWERS 2024 LATEST UPDATE $10.49   Add to cart

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BOMA-HVAC CORRECT QUESTIONS & ANSWERS 2024 LATEST UPDATE

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  • BOMA - Instrumentation & Controls
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  • BOMA - Instrumentation & Controls

laminar flow - ANSWER - A streamline or viscous flow. - layers of water flowing over one another at different speeds with virtually no mixing between layers. - Fluid particles move in definite and observable paths or stream lines. - The flow is characteristic of viscous (thick) fluid or is one i...

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  • November 3, 2024
  • 6
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • boma hvac
  • BOMA - Instrumentation & Controls
  • BOMA - Instrumentation & Controls
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shantelleG
BOMA-HVAC CORRECT QUESTIONS & ANSWERS
2024 LATEST UPDATE

laminar flow - ANSWER - A streamline or viscous flow.

- layers of water flowing over one another at different speeds with virtually no mixing between layers.

- Fluid particles move in definite and observable paths or stream lines.

- The flow is characteristic of viscous (thick) fluid or is one in which viscosity of the fluid plays a
significant part.



turbulent flow - ANSWER Irregular movement of particles of the fluid.



What do you use to determine quantity of air flowing through the duct? - ANSWER CFM



What do you use to determine the speed, rate or velocity of air flow through a duct? - ANSWER FPM



What is the standard that had been used in determining the amount of airflow in relation to refrigeration
effect (tonnage)? - ANSWER 400 CFM per ton of cooling



What is it recommended that you keep your facilities humidity levels? - ANSWER 30%-50%

Try to aim for 45%



What are the recommended summer and winter temperatures? - ANSWER Summer- 73 to 79

Winter- 68 to 74



Metabolic rate - ANSWER Everybody produces heat differently



Psychrometry - ANSWER - Looking at the interaction (relationship) of the moisture ( humidity) and the air
itself.

- how the air is moving or transferring heat through the building.

, Dry Bulb - ANSWER The temperature reading found on a typical thermometer.



What is the difference between heat and temperature? - ANSWER Heat is a form of energy, while
temperature is how hot or cold something is.



Newton's law of cooling - ANSWER The rate of heat loss of a body is proportional to the difference in
temperatures between the body and its surroundings.



Effective - ANSWER The temperature at which motionless saturated air would induce The same sensation
of comfort as that induced by the actual conditions of temperature, humidity, and air movement.



Wet-bulb depression - ANSWER The difference between the dry bulb and the wet bulb temperature
readings.



What percentage of nitrogen is in the air? - ANSWER 78.08%



What percentage of oxygen is in the air? - ANSWER 20.95%



What percentage of water is in the air? - ANSWER 0 to 4%



What percentage of argon is in the air? - ANSWER 0.93%



What percentage of carbon dioxide is in the air? - ANSWER 0.0360



What percentage of neon is in the air? - ANSWER 0.0018%



What percentage of helium is in the air? - ANSWER 0.0005%



What percentage of methane is in the air? - ANSWER 0.00017

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