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

Author Question: Modern residential oil furnaces sense the flames using: A) Ultraviolet light sensors. B) A ... (Read 145 times)

TFauchery

  • Hero Member
  • *****
  • Posts: 500
on: Jul 24, 2018
Modern residential oil furnaces sense the flames using:
 
  A) Ultraviolet light sensors. B) A thermal sensing stack switch.
  C) Flame rectification. D) A cadmium sulfide cell.

Question 2

MERV filter rating system:
 
  A) Compares the airflow resistance of different filters when fully loaded.
  B) Compares the overall arrestance value of all sizes of particles.
  C) Compares the airflow resistance of different filters when they are new.
  D) Compares the arrestance value of 12 different ranges of particle size.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

kiamars2010

  • Sr. Member
  • ****
  • Posts: 341
Reply #1 on: Jul 24, 2018
Answer to Question 1

D

Answer to Question 2

D


TFauchery

  • Hero Member
  • *****
  • Posts: 500
Reply #2 on: Jul 24, 2018
Thanks


kiamars2010

  • Sr. Member
  • ****
  • Posts: 341
Reply #3 on: Jul 24, 2018
Welcome :)


« previous next »
 

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Did you know?

Always store hazardous household chemicals in their original containers out of reach of children. These include bleach, paint, strippers and products containing turpentine, garden chemicals, oven cleaners, fondue fuels, nail polish, and nail polish remover.

Did you know?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

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?

In 1885, the Lloyd Manufacturing Company of Albany, New York, promoted and sold "Cocaine Toothache Drops" at 15 cents per bottle! In 1914, the Harrison Narcotic Act brought the sale and distribution of this drug under federal control.

Antoine-Laurent de Lavoisier is considered the "Father of Modern Chemistry". Antoine-Laurent de Lavoisier is considered the "Father of Modern Chemistry".
A Dorsal view of a scan of the hand phalange of a child from Denisova that yielded mtDNA that differ A Dorsal view of a scan of the hand phalange of a child from Denisova that yielded mtDNA that differ
A fluorescent trouble light operates cooler and is safer to use in the shop because it is protected ... A fluorescent trouble light operates cooler and is safer to use in the shop because it is protected ...
Use dye specifically made for coolant when checking for leaks using a black light. Use dye specifically made for coolant when checking for leaks using a black light.
Electrophoresis gel in a densitometer. (a) The green light from the slit light source is visible ... Electrophoresis gel in a densitometer. (a) The green light from the slit light source is visible ...
Major bone (tan) and cartilage (light blue) elements of the human skeleton. Inset shows regions of v Major bone (tan) and cartilage (light blue) elements of the human skeleton. Inset shows regions of v
Video: Ventilation - phases and driving forces

For a complete list of videos, visit our video library