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

Author Question: The operation of modern induced-draft equipment is normally controlled by: A) An electronic ... (Read 11 times)

Mimi

  • Hero Member
  • *****
  • Posts: 542
on: Jul 27, 2018
The operation of modern induced-draft equipment is normally controlled by:
 
  A) An electronic board.
  B) A simple control system with very few controls.
  C) An elaborate system of mechanical switches and sensors.
  D) Manually operated valves, levers, and shutters.

Question 2

The main limit switch shuts the gas valve down when:
 
  A) The heat exchanger area becomes overheated. B) The blower motor overheats.
  C) The monthly BTU limit has been reached. D) The house temperature reaches 80F.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

leeeep

  • Sr. Member
  • ****
  • Posts: 315
Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

A


Mimi

  • Member
  • Posts: 542
Reply 2 on: Jul 27, 2018
Excellent

skipfourms123

  • Member
  • Posts: 343
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

Did you know?

The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Did you know?

Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

Oxygen Equipment 2 Oxygen Equipment 2
Electronic thermometer Electronic thermometer
Evidence of regional continuity: (a) The anatomically modern Willandra Lakes Hominid 50 calvaria fro Evidence of regional continuity: (a) The anatomically modern Willandra Lakes Hominid 50 calvaria fro
Change in air temperature at various air flow rates for a 4 pass operation Change in air temperature at various air flow rates for a 4 pass operation
Controlled Scientific Experiments Scientists use experimental research to test hypotheses Controlled Scientific Experiments Scientists use experimental research to test hypotheses
Nucleotide excision repair (NER) of a UV-induced thymine dimer Nucleotide excision repair (NER) of a UV-induced thymine dimer
Video: Effect of the environment on coat color in the Himalayan rabbit Animation

For a complete list of videos, visit our video library