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

Author Question: What happens first when there is a call-for-heat signal to a furnace equipped with a motor-driven ... (Read 64 times)

amal

  • Hero Member
  • *****
  • Posts: 572
on: Jul 24, 2018
What happens first when there is a call-for-heat signal to a furnace equipped with a motor-driven vent
  damper?
 
  a. The burners light to warm a bi-metal element.
  b. A switch in the damper closes to start the burner.
  c. A motor opens the vent damper.
  d. The burners light to start the motor.

Question 2

The National Fuel Gas Code category of vent system used with a natural draft furnace is _____.
 
  a. Category I
  b. Category II
  c. Category III
  d. Category IV


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

amy.lauersdorf90

  • Sr. Member
  • ****
  • Posts: 327
Reply #1 on: Jul 24, 2018
Answer to Question 1

c

Answer to Question 2

a


amal

  • Member
  • Posts: 572
Reply 2 on: Jul 24, 2018
Excellent

fatboyy09

  • Member
  • Posts: 358
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

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

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.

Did you know?

The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Young children’s play engages motor skills as well as cognitive skills (such as communicating, ... Young children’s play engages motor skills as well as cognitive skills (such as communicating, ...
Medical assistants can quickly pull up a patient record when a phone call is received. Medical assistants can quickly pull up a patient record when a phone call is received.
Stronger threads are created by cold rolling a heat-treated bolt blank instead of cutting the ... Stronger threads are created by cold rolling a heat-treated bolt blank instead of cutting the ...
A meter lead connected to a T-pin that was gently pushed along the signal wire of the TP sensor ... A meter lead connected to a T-pin that was gently pushed along the signal wire of the TP sensor ...
Signal Transmission at a Chemical Synapse Signal Transmission at a Chemical Synapse
How much heat is released when 125.0 g of steam at 100.0°C is cooled to ice at -15.0°C? The ... How much heat is released when 125.0 g of steam at 100.0°C is cooled to ice at -15.0°C? The ...
Video: Methods that regulate pH

For a complete list of videos, visit our video library