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 60 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

bitingbit

  • Member
  • Posts: 323
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Did you know?

It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.

Did you know?

About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.

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.
An overhead camshaft engine equipped with variable valve timing on both the intake and exhaust ... An overhead camshaft engine equipped with variable valve timing on both the intake and exhaust ...
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 ...
Get feedback every 5 to 7 minutes about heat intensity. Add or subtract heat barriers to maintain ... Get feedback every 5 to 7 minutes about heat intensity. Add or subtract heat barriers to maintain ...
Testing motor function of cranial nerve VII - Smile Testing motor function of cranial nerve VII - Smile
From Signal Reception to Response From Signal Reception to Response
Video: Resting membrane potential - electrical polarity and maintenance requirements

For a complete list of videos, visit our video library