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

Author Question: The four categories of gas-fired furnaces are based on: A) Efficiency. B) Flue gas temperature ... (Read 107 times)

jon_i

  • Hero Member
  • *****
  • Posts: 549
on: Jul 24, 2018
The four categories of gas-fired furnaces are based on:
 
  A) Efficiency. B) Flue gas temperature and pressure.
  C) Firing rate. D) Category of gas being burned.

Question 2

What is the advantage of using multiple compressors on a supermarket rack system?
 
  A) System capacity can match refrigeration loads, which vary over a wide range.
  B) Extra compressors provide backup in case one quits working.
  C) Using multiple parallel compressors makes the use of multiple refrigerants possible.
  D) The compressors can operate at a higher compression ratio as a parallel group.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

kxciann

  • Sr. Member
  • ****
  • Posts: 356
Reply #1 on: Jul 24, 2018
Answer to Question 1

B

Answer to Question 2

A


jon_i

  • Member
  • Posts: 549
Reply 2 on: Jul 24, 2018
Thanks for the timely response, appreciate it

abro1885

  • Member
  • Posts: 337
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

Did you know?

Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

Did you know?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

Growth Chart for American Girls From Birth Through Age 3 Growth slows from infancy to toddlerhood b Growth Chart for American Girls From Birth Through Age 3 Growth slows from infancy to toddlerhood b
This chart illustrates the four quadrants in which we can place the relationships between the state This chart illustrates the four quadrants in which we can place the relationships between the state
Performing Transmission-Based Precaution: Isolation Techniques Performing Transmission-Based Precaution: Isolation Techniques
The homeostatic control of normal body temperature (37°C or 98.6°F). The homeostatic control of normal body temperature (37°C or 98.6°F).
Thick-walled barrel-shaped arthrospores on thin glass like hyphae; the room-temperature form of ... Thick-walled barrel-shaped arthrospores on thin glass like hyphae; the room-temperature form of ...
Cost = $99.49; Rate of markup based on cost = 32%. Find the markup and selling price. Cost = $99.49; Rate of markup based on cost = 32%. Find the markup and selling price.
Video: Physiology of Asthma

For a complete list of videos, visit our video library