100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
BOMA – HVAC CORRECT 100% $10.99   Add to cart

Exam (elaborations)

BOMA – HVAC CORRECT 100%

 8 views  0 purchase
  • Course
  • BOMA - Instrumentation & Controls
  • Institution
  • BOMA - Instrumentation & Controls

Two basic categories of chillers are the - ANSWER compression cycle and absorption The five requirements for comfort are proper temperature, humidity, filtration, and ventilation - ANSWER circulation The primary function of an expansion device is to - ANSWER produce a reduction in the pressur...

[Show more]

Preview 2 out of 9  pages

  • November 3, 2024
  • 9
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • BOMA - Instrumentation & Controls
  • BOMA - Instrumentation & Controls
avatar-seller
shantelleG
BOMA – HVAC CORRECT 100%
Two basic categories of chillers are the - ANSWER compression cycle and absorption



The five requirements for comfort are proper temperature, humidity, filtration, and ventilation -
ANSWER circulation



The primary function of an expansion device is to - ANSWER produce a reduction in the pressure on the
liquid refrigerant, regulate the flow of refrigerant into the evaporator, lower the boiling point of the
refrigerant far enough below the temperature of the load to get the needed heat transfer rate



The wet-bulb depression is - ANSWER the difference between the dry-bulb and wet-bulb temperatures



The dew-point temperature is the - ANSWER temperature when the moisture begins to condense out of
the air



How many BTUs are required to change one pound of ice at 20°F to steam at 220°F? - ANSWER 1,304
Btu/h



If an R-12 refrigeration system is operating with a 25.4 PSIG suction pressure, what is the evaporator
superheat

if the evaporator outlet temperature is 34°F? - ANSWER 9°F



On an R-11 or R-123 system, the refrigerant removal process normally starts with the removal of -
ANSWER liquid refrigerant



The condenser in a refrigeration system - ANSWER de-superheats the vapor from the compressor,
condenses the vapor from the compressor, sub-cools the liquid refrigerant before it leaves the condenser



The human body gives off heat by which of the following? - ANSWER convection, radiation, and
conduction

, If the temperature remains constant and the volume that a gas occupies increases, the pressure will -
ANSWER decrease



Transformers are rated using - ANSWER volt-amperes



Measuring velocity pressure in a duct indicates the - ANSWER speed at which the air is moving



A solid material exerts a pressure or force - ANSWER downward only



Pure water boils at a temperature of 212°F at which of the following standard conditions? - ANSWER
14.967 psi



Which of the following would allow a system to operate more efficiently? - ANSWER condenser that had
refrigerant leaving with 15° of subcooling



One watt of electrical energy is equal to - ANSWER 3.413 Btu



Rotary compressors are used primarily in - ANSWER domestic refrigerators



The water circuit in shell and coil and coil-type tube-in-a-tube condensers must be cleaned - ANSWER
chemically



When a water regulating valve is used to control the head pressure of a water-cooled system, the valve's

spring is acting against which pressure to modulate the water flow? - ANSWER head pressure of the
system



The standard atmospheric pressure at sea level is - ANSWER 29.92" Hg

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller shantelleG. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $10.99. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

62890 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$10.99
  • (0)
  Add to cart