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2027 International Fire Code
Chapter 57

IFC 2027

2027 International Fire Code

Chapter 57Flammable And Combustible Liquids

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Question 1 1.

Which of the following packages of commercial products containing water-miscible flammable liquids is exempt from the provisions of Chapter 57?

A 2.5-gallon container of cleaner containing 40 percent by volume of water-miscible flammable liquid
A 5.0-gallon drum containing 30 percent by volume of water-miscible flammable liquid
A 1.0-gallon container of cleaning solution containing 45 percent by volume of water-miscible flammable liquid
A 1.3-gallon bottle containing 60 percent by volume of water-miscible flammable liquid

Question 2 2.

When a Class II combustible liquid is heated above its flash point, how must it be treated under Chapter 57?

It assumes the characteristics of a Class I liquid
It is exempt from the scope of Chapter 57
It continues to be regulated under Class II requirements
It is reclassified permanently as a Class IIIA liquid

Question 3 3.

What is the extent of the Class I, Division 2 electrical classified area around an outdoor pump handling flammable liquids?

Within 5 feet of any edge in all directions, and up to 3 feet above grade within 25 feet horizontally
Within 3 feet of any edge in all directions, and up to 18 inches above grade within 10 feet horizontally
Within 5 feet of any edge in all directions, and up to 18 inches above grade within 15 feet horizontally
Within 10 feet of any edge in all directions, and up to 18 inches above grade within 5 feet horizontally

Question 4 4.

The extent of an electrical classified area for flammable liquids is permitted to be reduced or eliminated where technical justification proves vapor concentrations cannot exceed what threshold?

25 percent of the lower flammable limit
20 percent of the lower flammable limit
10 percent of the lower flammable limit
50 percent of the lower flammable limit

Question 5 5.

What is the Class I, Division 1 electrical classified boundary around the open end of a vent discharging upward from an above-ground flammable liquid tank?

Within 5 feet of the open end of vent
Within 10 feet of the open end of vent
Within 18 inches of the open end of vent
Within 3 feet of the open end of vent

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