100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
IFSTA 7th Edition, Chapter 4 Fire Dynamics with 100% correct answers $17.99   Add to cart
Quickly navigate to
Preview
  2.  
  3. IFTSA
  4.  
  5. IFTSA

Exam (elaborations)

IFSTA 7th Edition, Chapter 4 Fire Dynamics with 100% correct answers
 66 views  0 purchase
  • Course
  • IFTSA
  • Institution
  • IFTSA

IFSTA 7th Edition, Chapter 4 Fire Dynamics.Fires involve a heat-producing chemical reaction between fuel and: (117) [4.3.11] A. a catalyst. B. an oxidizer. C. free radicals. D. a reducing agent. - correct answer B. an oxidizer. When a substance changes from one type of matter into another...

[Show more]

Preview 3 out of 21  pages

Document information

  • December 31, 2023
  • 21
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers

Subjects

  • ifsta 7th edition chapter 4 fire dynamics

Written for

  • IFTSA
  • IFTSA

Seller

avatar-seller
BravelRadon

Reviews received

Content preview

IFSTA 7th Edition, Chapter 4 Fire Dynamics.
Fires involve a heat-producing chemical reaction between fuel and:
(117) [4.3.11]
A. a catalyst.
B. an oxidizer.
C. free radicals.
D. a reducing agent. - correct answer B. an oxidizer.
When a substance changes from one type of matter into another, such as two or more substances combining to form compounds, the substance undergoes a: (118) [4.3.11]
A. dissolution.
B. metamorphosis.
C. chemical reaction.
D. physiological change. - correct answer C. chemical reaction.
Which statement about energy and combustion is accurate? (120)
[4.3.11]
A. A fuel's chemical energy is the result of rapid vibrations in the molecules.
B. Chemical and physical changes almost never involve an exchange of energy.
C. A fuel's potential energy releases during combustion and converts to kinetic energy.
D. Chemical changes involve an exchange of energy; physical changes involve no energy exchange. - correct answer C. A fuel's potential energy releases during combustion and converts to kinetic energy. Which element of the fire tetrahedron is included to explain flaming (gas-phase) combustion? (120) [4.3.11]
A. Fuel
B. Heat
C. Oxygen
D. Chemical chain reaction - correct answer D. Chemical chain reaction
What occurs when a mixture of fuel and oxygen encounter an external heat source with sufficient heat or thermal energy to start the combustion reaction? (120) [4.3.11]
A. Autoignition
B. Piloted ignition
C. Kinetic ignition
D. Sustained ignition - correct answer B. Piloted ignition
The minimum temperature at which a fuel in the air must be heated in order to start self-sustained combustion is known as the: (122)
[4.3.11]
A. autoignition temperature (AIT).
B. piloted ignition temperature (PIT).
C. lower explosive (flammable) limit (LEL).
D. upper explosive (flammable) limit (UEL). - correct answer A. autoignition temperature (AIT).
What causes flaming combustion to occur? (123) [4.3.11]
A. A solid fuel encounters an open flame and entrain enough air to ignite.
B. A gaseous fuel encounters an external heat source and experience piloted ignition.
C. A gaseous fuel mixes with an adequate amount of oxygen and heats to ignition temperature. D. A solid fuel mixes with an adequate amount of liquid fuel to be able to sustain an open burning flame.
- correct answer C. A gaseous fuel mixes with an adequate amount of oxygen and heats to ignition temperature.
What is the cause of most fire deaths? (124) A. Injuries caused by falling materials or structural collapse
B. Exposure to toxic gases found in smoke and/or lack of oxygen
C. Exposure to extreme heat and or contact with flames and hot surfaces
D. Accidental injuries sustained during escape and/or evacuation procedures - correct answer B. Exposure to toxic gases found in smoke and/or lack of oxygen.
Which statement about the dangers of products of combustion is accurate? (124) [4.3.11]
A. Visible smoke presents the greatest inhalation danger.
B. Low oxygen concentrations alone can result in hypoxia or death.
C. Toxic products of combustion are released only during the combustion reaction.
D. The toxic effects of smoke inhalation are the result of the interaction between carbon monoxide and heat. - correct answer B. Low oxygen concentrations alone can result in hypoxia or death.
Which product of combustion acts as a chemical asphyxiant by excluding oxygen from the blood, leading
to hypoxia of the brain and tissues? (124-125) /4.3.11]
A. Carbon dioxide (CO,)
B. Carbon monoxide (CO)
C. Aerosolized fuel particles
D. Hydrogen cyanide (HCN) - correct answer B. Carbon monoxide (CO)
Hydrogen cyanide (HCN) is a product of combustion that: (126)
[4.3.11]

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying these notes from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller BravelRadon. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $17.99. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

83637 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$17.99
  • (0)
  Add to cart