This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Which basic principle is one that influences how all HVACR systems work? A) An increase in ... (Read 71 times)

jeatrice

  • Hero Member
  • *****
  • Posts: 543
on: Jul 24, 2018
Which basic principle is one that influences how all HVACR systems work?
 
  A) An increase in pressure can lower the boiling point of a liquid and change the temperature at which it turns to a gas.
  B) A decrease in pressure increases the boiling point of liquid, the temperature at which a liquid turns to a gas.
  C) Pressure affects boiling point and evaporation in an unpredictable way, so it must not be considered in HVACR equipment.
  D) An increase in pressure can increase the boiling point of a liquid, the temperature at which a liquid turns to a gas.

Question 2

What is the estimated length of a building that has 35 roof rafters 24 inches on center?
 
  A) 72 feet B) 66 feet C) 70 feet D) 68 feet


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

dominiqueenicolee

  • Sr. Member
  • ****
  • Posts: 314
Reply #1 on: Jul 24, 2018
Answer to Question 1

D

Answer to Question 2

D


jeatrice

  • Member
  • Posts: 543
Reply 2 on: Jul 24, 2018
Great answer, keep it coming :)

milbourne11

  • Member
  • Posts: 322
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

Historic treatments for rheumatoid arthritis have included gold salts, acupuncture, a diet consisting of apples or rhubarb, nutmeg, nettles, bee venom, bracelets made of copper, prayer, rest, tooth extractions, fasting, honey, vitamins, insulin, snow collected on Christmas, magnets, and electric convulsion therapy.

Gene silencing influences flower colour in petunia. Gene silencing influences flower colour in petunia.
Effect of clinical decison support systems Effect of clinical decison support systems
Work and Gender: Women at Work in India Work and Gender: Women at Work in India
The effects of alcoholism on the body systems. The effects of alcoholism on the body systems.
Major Wind Systems: Katabatic Winds Major Wind Systems: Katabatic Winds
Environmental Systems in Space and Time Environmental Systems in Space and Time
Video: HDL (high density lipoprotein)

For a complete list of videos, visit our video library