Question 1

Under certain conditions,combustible liquids become as easily ignitable as flammable liquids at room temperature.Explain these conditions and how they relate to flashpoint.

Accepted Answer

The answer of Under certain conditions,combustible liquids become as easily...

Question 2

Static electrical discharge is a source of ignition for flammable liquid vapors.

Accepted Answer

A) True 
 B)False

Question 3

What term describing liquid refers to that concentration above which the vapors are too rich to ignite?

Accepted Answer

The answer of What term describing liquid refers to that...

Question 4

Label the axes in the diagram.

Accepted Answer

The answer of Label the axes in the diagram. ...

Question 5

Natural gas is lighter than air and will th

Accepted Answer

A) True 
 B)False

Question 6

All flammable liquids are Class I liquids.

Accepted Answer

A) True 
 B)False

Question 7

An empty tank can be more dangerous than a tank full of gasoline.

Accepted Answer

A) True 
 B)False

Question 8

What two physical characteristics of a liquid are principally used to determine its flammability classification?

Accepted Answer

The answer of What two physical characteristics of a liquid...

Question 9

Alcohol will ignite at richer concentrations than gasoline will.

Accepted Answer

A) True 
 B)False

Question 10

When dispensing Class I liquids into plastic containers,NFPA regulations require electrical bonding.

Accepted Answer

A) True 
 B)False

Question 11

The temperature above which a flammable liquid gives off vapors too rich ignite is called

Accepted Answer

A) firepoint 
B) flash point 
C) LEL 
D) UEL 
E) none of the above

Question 12

Which of the following characteristics of dip tanks are used to determine whether automatic extinguishing facilities are needed?

Accepted Answer

A) capacity of the tank 
B) purpose for which the tank will be used 
C) liquid surface area of the tank 
D) all of the above 
E) none of the above

Question 13

High octane aviation gasoline is more flammable than ordinary "regular" gasoline.

Accepted Answer

A) True 
 B)False

Question 14

The design concept illustrated in the diagram on the left is.

Accepted Answer

The answer of The design concept illustrated in the diagram...

Question 15

LPG tanks are required to have "bleed off" valves for removing condensed moisture.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following characteristics is indicated by the diagram?

Accepted Answer

A) flash point 
B) boiling point 
C) LEL 
D) none of the above

Question 17

Injury from liquid propane while opening the tank valve implies that the valve is defective.

Accepted Answer

A) True 
 B)False

Question 18

A certain plant has two dip tanks of the same capacity.One is required by OSHA standards to have automatic extinguishment facilities.One is used for hardening and tempering,and the other is for general use in the application of coatings.Which one is required to have automatic extinguishment facility?

Accepted Answer

The answer of A certain plant has two dip tanks...

Question 19

All Class II liquids are combustible liquids.

Accepted Answer

A) True 
 B)False

Question 20

If a sprinkler system is installed inside ventilation ducts for a spray area,sprinkler heads are needed on both sides of the filter system.

Accepted Answer

A) True 
 B)False

Exam 11: Flammable and Explosive Materials

Under certain conditions,combustible liquids become as easily ignitable as flammable liquids at room temperature.Explain these conditions and how they relate to flashpoint.

Static electrical discharge is a source of ignition for flammable liquid vapors.

What term describing liquid refers to that concentration above which the vapors are too rich to ignite?

Label the axes in the diagram.

Natural gas is lighter than air and will th

All flammable liquids are Class I liquids.

An empty tank can be more dangerous than a tank full of gasoline.

What two physical characteristics of a liquid are principally used to determine its flammability classification?

Alcohol will ignite at richer concentrations than gasoline will.

When dispensing Class I liquids into plastic containers,NFPA regulations require electrical bonding.

The temperature above which a flammable liquid gives off vapors too rich ignite is called

Which of the following characteristics of dip tanks are used to determine whether automatic extinguishing facilities are needed?

High octane aviation gasoline is more flammable than ordinary "regular" gasoline.

The design concept illustrated in the diagram on the left is.

LPG tanks are required to have "bleed off" valves for removing condensed moisture.

Which of the following characteristics is indicated by the diagram?

Injury from liquid propane while opening the tank valve implies that the valve is defective.

All Class II liquids are combustible liquids.

If a sprinkler system is installed inside ventilation ducts for a spray area,sprinkler heads are needed on both sides of the filter system.