This topic contains a solution. Click here to go to the answer

Author Question: Compared to blue flames, yellow flames: A) Burn at a lower temperature. B) Burn more cleanly. C) ... (Read 129 times)

debasdf

  • Hero Member
  • *****
  • Posts: 570
Compared to blue flames, yellow flames:
 
  A) Burn at a lower temperature. B) Burn more cleanly.
  C) Produce about the same amount of heat. D) Burn at a higher temperature.

Question 2

How many wires are needed for a communicating control system to control a three-stage heat, two-stage cool heat pump?
 
  A) Nine wiresone for each stage plus reversing valve and power
  B) Five wiresone for each stage heat and cool
  C) Four wirestwo for power and two for communication
  D) No wires are required because communicating systems are wireless.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

fdliggud

  • Sr. Member
  • ****
  • Posts: 366
Answer to Question 1

A

Answer to Question 2

C




debasdf

  • Member
  • Posts: 570
Reply 2 on: Jul 27, 2018
Wow, this really help


kswal303

  • Member
  • Posts: 316
Reply 3 on: Yesterday
Great answer, keep it coming :)

 

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Did you know?

Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.

Did you know?

Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
Did you know?

The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

Did you know?

There are more sensory neurons in the tongue than in any other part of the body.

For a complete list of videos, visit our video library