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

Author Question: What type of vent is used with 80 percent Category I furnaces? A) Type B double-wall gas vent B) ... (Read 126 times)

darbym82

  • Hero Member
  • *****
  • Posts: 570
on: Jul 24, 2018
What type of vent is used with 80 percent Category I furnaces?
 
  A) Type B double-wall gas vent
  B) 90 percent efficiency furnaces do not require a vent.
  C) PVC
  D) Single-wall stainless steel

Question 2

What is the RPM of a fan that uses a 4 in motor pulley, 8 in fan pulley, and a motor RPM of 1,750?
 
  A) 1,250 B) 875 C) 750 D) 500


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

kescobar@64

  • Sr. Member
  • ****
  • Posts: 324
Reply #1 on: Jul 24, 2018
Answer to Question 1

A

Answer to Question 2

B


darbym82

  • Member
  • Posts: 570
Reply 2 on: Jul 24, 2018
Great answer, keep it coming :)

duy1981999

  • Member
  • Posts: 341
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.

Did you know?

Though Candida and Aspergillus species are the most common fungal pathogens causing invasive fungal disease in the immunocompromised, infections due to previously uncommon hyaline and dematiaceous filamentous fungi are occurring more often today. Rare fungal infections, once accurately diagnosed, may require surgical debridement, immunotherapy, and newer antifungals used singly or in combination with older antifungals, on a case-by-case basis.

Did you know?

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

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Mechanism of penicillin: (a) Bacterial cell wall strengthened by peptide cross-links. (b) Penicillin ... Mechanism of penicillin: (a) Bacterial cell wall strengthened by peptide cross-links. (b) Penicillin ...
A typical injector-pump-type automotive diesel fuel injection system. A typical injector-pump-type automotive diesel fuel injection system.
Comparison of a single-stranded RNA and a double-stranded DNA with their corresponding nucleobases. Comparison of a single-stranded RNA and a double-stranded DNA with their corresponding nucleobases.
Chylomicron Chylomicrons are one type of lipoprotein Chylomicron Chylomicrons are one type of lipoprotein
A double crossover is undetected A double crossover is undetected
Wild-type flowers of Arabidopsis Wild-type flowers of Arabidopsis
Video: Oxygen - hemoglobin dissociation curve & Hemoglobin's affinity with oxygen - acidity

For a complete list of videos, visit our video library