Ammonia Refrigeration Final Exam Questions & Answers 100% Correct!!
6 views 0 purchase
Course
Ammonia Refrigeration \\
Institution
Ammonia Refrigeration \\
Convection is the transfer of ____ - ANSWER-heat through a material or substance
Radiation is the ____ - ANSWER-projection of heat like the heat radiated by the sun or by an open flame
T or F: Heat is always on the move, traveling only in one direction and always from hot to cold - ANSWER-fal...
Ammonia
Refrigeration Final
Exam Questions &
Answers 100%
Correct!!
Convection is the transfer of ____ - ANSWER-heat through a material or substance
Radiation is the ____ - ANSWER-projection of heat like the heat radiated by the sun or by an open
flame
T or F: Heat is always on the move, traveling only in one direction and always from hot to cold -
ANSWER-false
What are two methods of heat transfer? - ANSWER-conduction and convection
What are two basic forms of refrigeration systems? - ANSWER-direct expansion and gravity flooded
T or F: Conduction is the heat transferred due to the temperature being different on one side of a
room than the other like the heat rising in a room - ANSWER-true
, T or F: A basic refrigeration system consists of an expansion device, an evaporator, a compressor, and
a condenser connected by a series of pipes - ANSWER-true
T or F: Compression occurs as the ammonia refrigerant passes through the evaporator - ANSWER-
false
T or F: The high side includes all components between the pressure reduction device outlet to a
point inside the compressor - ANSWER-false
T or F: Expansion occurs as the refrigerant flows through the compressor - ANSWER-false
T or F: When a hand expansion valve is opened, pressure behind the valve forces liquid ammonia
through a small opening causing a deliberate pressure drop to occur - ANSWER-false
T or F: Evaporation takes place as the ammonia refrigerant flows through the compressor - ANSWER-
false
T or F: The evaporation process is completed when the ammonia has passed through the evaporator
- ANSWER-true
Absolute pressure is the pressure read by a gauge, plus the ____ atmospheric pressure - ANSWER-
ambient
T or F: A pumped liquid, or re-circulation single stage system consists of a receiver, a king valve, a
pressure reduction device, an evaporator, a compressor, a condenser, a vessel, a pump and an
additional flow metering device - ANSWER-true
Where is the worst place to have a leak in an ammonia refrigeration system? - ANSWER-high
pressure liquid
How many BTUs does it take to convert 1 lb of saturated ammonia to 1 lb of saturated gas? -
ANSWER-561
How many BTUs does it take to convert 1 lb of liquid water at 212° to steam as 212°F - ANSWER-970
The benefits of buying summaries with Stuvia:
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
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
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 papersbyjol. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.99. You're not tied to anything after your purchase.
