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 54 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

Dominic

  • Member
  • Posts: 328
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.

Did you know?

The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

Did you know?

Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

Did you know?

Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Motor proteins and their interactions with cytoskeletal filaments. Motor proteins and their interactions with cytoskeletal filaments.
Spinal cord—levels of injury; A, areas of sensory function (dermatomes); B, areas of motor function. Spinal cord—levels of injury; A, areas of sensory function (dermatomes); B, areas of motor function.
The integumentary and nervous systems work together to recognize specific sensations, such as heat ... The integumentary and nervous systems work together to recognize specific sensations, such as heat ...
Distillation column with heat pump Distillation column with heat pump
Heat Transfer Mechanisms Heat Transfer Mechanisms
Mechanisms of Heat Transfer Mechanisms of Heat Transfer
Video: Resting membrane potential - electrical polarity and maintenance requirements

For a complete list of videos, visit our video library