Exam (elaborations)
RI Journeyman's Refrigeration License (The Basics) Questions With 100% Correct Answers!!
- Course
- Institution
RI Journeyman's Refrigeration License (The Basics) Questions With 100% Correct Answers!!
[Show more]
Content preview
RI Journeyman's Refrigeration License (The Basics) Questions With 100% Correct Answers!!The temperature scale that freezes water at 32 deg. and boils water at 212 deg. is known as the ___________ scale Answer - Fahrenheit
The temperature scale that freezes water at 0 deg. and boils water at 100 deg. is known as the __________ scale. Answer - Centigrade
The definition of specific heat is _______________________ Answer - the amount of heat required to raise 1 lb of a substance 1 deg. F.
The definition of sensible heat is ______ Answer - the heat that can be measured by a thermometer.
The definition of latent heat is ______ Answer - the heat used which causes a change of state
The definition of a BTU is ________ Answer - the amount of heat required to raise 1 lb of water 1 deg. F
Heat energy is measured in _________ Answer - BTU
Three states of matter are _________ Answer - Solid, Liquid, and Gas
One ton of refrigeration is equal to __________ Answer - 12,000 btu per hour
____________ is the type of heat that is absorbed or extracted from a substance when the substance changes state Answer - Latent Heat
When a substance changes from a liquid to a gas, this is known as the________________ Answer - latent heat of vaporization
When a substance changes from a gas to a liquid, this is known as the________________ Answer - latent heat of condensation.
When a substance changes from a solid to a gas, this is known as the________________ Answer - the latent heat of sublimation In a refrigeration system, heat is absorbed by ______________ Answer - the latent heat of vaporization in the evaporator.
In a refrigeration system, heat is rejected by _________ Answer - the latent heat of condensation in the condenser.
Frost is Answer - adsorbed by the evaporator
The relationship of absolute pressure on the low side to the absolute pressure on the
high side is called the ___________ Answer - compression ratio
________________________________ Is called the refrigerating effect Answer - The amount of heat absorbed by the refrigerant used
Generally speaking the ____________________ is the type of system that gives the greatest rate of heat transfer Answer - flooded evaporator
________________ the total amount of heat present in a given substance. Answer - Enthalpy is
When hot air remains at the top of a room and cold air at the bottom you will have an
occurrence of a condition known as ___________ Answer - stratified air.
The ____ State of a substance will have the highest heat content. Answer - vapor
One cubic foot of air at 50 deg F can absorb _____________ Answer - less moisture
than it could at 100 deg. F.
A Boudelot cooler ________________ Answer - is a heat exchanger
When placed in a bucket of water, the refrigeration effect of 32 deg F. Ice will always be ______________ Answer - 144 btu per pound.
____________________________ Is called the ambient temperature. Answer - The temperature of the air that surrounds any object
The highest temperature at which vapor can be liquified regardless of the pressure applied is called ___________________ Answer - the critical temperature of a substance.
The critical pressure of a substance is the pressure at which ____________ Answer - a liquid cannot become a vapor by adding heat.
The boiling point of water ______________ when salt is added Answer - increases
Heat travels in accordance with the __________________ Answer - second law of thermodynamics.
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 EvaTee. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $13.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
67096 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now