× Didn't find what you were looking for? Ask a question

Recent Posts • Latest Topics • Unanswered Questions

Top Posters

Since Sunday

j

3

s

3

j

2

J

2

e

2

n

2

t

2

d

2

b

2

t

2

J

2

b

2

Why are the 90 percent condensing furnaces unique?

Nwere

wrote...

Go to Answer

Posts: 496

Rep:

6 years ago

Why are the 90 percent condensing furnaces unique?

Why are the 90 percent condensing furnaces unique?

A) The flue-gas affects the venting material at a greater than normal rate.
B) The venting of this type of furnace is made of PVC and is easy to seal airtight.
C) The flue-gas is excessively hot and can cause fires if improperly used.
D) The venting material is rare, as it is no longer manufactured due to defects.

Q. 2

For what reason are Category II and Category III furnaces rare?

A) The temperature of the system makes it hard to repair.
B) These furnaces are no longer manufactured.
C) These furnaces are not reliable and require more maintenance.
D) The venting system is made of a material that is no longer available.

Q. 3

Why should a universal torch wrench be used to install and remove oxyacetylene fittings?

a. It is supplied with the equipment.
b. Oxyacetylene fittings are special non-standard sizes.
c. Using standard wrenches can overtighten the fittings.
d. There is no specific reason, it is just industry policy.

Read 68 times

1 Reply

Replies

Answer verified by a subject expert

Hoepforbuddha

wrote...

#1

Posts: 352

Rep:

6 years ago

Sign in or Sign up in seconds to unlock everything for free

Related Topics

Show More

Nwere Author

wrote...

6 years ago

Correct

Slight Smile

TY

KaylenePig

wrote...

Yesterday

Just got PERFECT on my quiz

DaiwalkerX

wrote...

2 hours ago

Thank you, thank you, thank you!

Explore

Post your homework questions and get free online help from our incredible volunteers

821 People Browsing

Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook

Live Chat

AJAX Chat © blueimp.net Integrated with SMF

Related Images

75

225

386

Your Opinion

Previous poll results: Who's your favorite biologist?

Courses by Biology Forums

It's sore throat season, why does my mucus have red spots?

Strange Ingredients Lurking in Doritos Chips

Bonobos, Chimpanzees, and the 98% DNA Link

The Toxic Skin and Fungi Defense

Ready to ask a question on Biology Forums? Try it out

Join Our Community

Biology Forums - Study Force is a free online homework help service catered towards college and high school students. Get homework help and answers to your toughest questions in biology, chemistry, physics, mathematics, engineering, accounting, business, humanities, and more. Master your assignments quickly with thousands of step-by-step solutions to countless textbook questions asked and answered by our members. If we don't have your question, don't worry. You can ask any homework question and get expert homework help in as little as two hours.

Our extensive online study community is made up of college and high school students, teachers, professors, parents and subject enthusiasts who contribute to our vast collection of study resources: textbook solutions, study guides, practice tests, practice problems, lecture notes, equation sheets and more. With our help, your homework will never be the same!

Join for free today

How is Biology Forums - Study Force different than tutoring?

Home Search Q & A Board Gallery Resource Library Blog Dictionary Chat	Quick Links Start a Topic Latest Topics Unanswered Questions Courses Study Tools Browse by Textbook	Social Facebook YouTube Community Stats Who's Online Trending Staff	Help About Us Take the Tour Study Tips Posting Guidelines Terms and Policies Contact Us
Biology Forums - Study Force © 2010-2024 \| Powered by SMF \| SMF © 2015, Simple Machines \| Sitemap Biology-Forums.com is not affiliated with any publisher. Book covers, title and author names appear for reference only.