New Mexico (NM) LP-3S Retail Sale of LP Gas Practice Exam 3
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1. Which two hydrocarbons are most com- Answer: B
monly used as LP-Gas? Explanation: LP-Gas is primarily composed
A. Methane and ethane of propane and butane, which provide its
B. Propane and butane desired vapor pressure and energy content.
C. Pentane and hexane
D. Ethylene and acetylene
2. What is one implication of LP-Gas's chemical Answer: B
composition for storage? Explanation: Because propane and butane
A. It requires cryogenic storage are gases at atmospheric pressure, LP-Gas
B. It needs to be stored in pressurized con- is stored in pressurized containers to keep
tainers it liquefied.
C. It must be kept in open-air tanks
D. It is stored as a solid
3. How does the proportion of propane to bu- Answer: B
tane affect LP-Gas? Explanation: A higher propane content re-
A. It changes the color of the gas sults in higher vapor pressure, which is im-
B. It affects the vapor pressure and perfor- portant for proper gas delivery, especially in
mance in cold weather colder climates.
C. It determines if the gas is odorless
D. It has no practical effect
4. Which component in LP-Gas contributes Answer: B
more to its high vapor pressure? Explanation: Propane has a higher vapor
A. Butane pressure compared to butane, making it
B. Propane critical for ensuring that LP-Gas vaporizes
C. Ethane effectively under varying temperature con-
D. Methane ditions.
5. Why is it important for technicians to under- Answer: B
stand the chemical composition of LP Gas? Explanation: Knowing the composition
1/2
Study online at https://quizlet.com/_gtzcty
1. Which two hydrocarbons are most com- Answer: B
monly used as LP-Gas? Explanation: LP-Gas is primarily composed
A. Methane and ethane of propane and butane, which provide its
B. Propane and butane desired vapor pressure and energy content.
C. Pentane and hexane
D. Ethylene and acetylene
2. What is one implication of LP-Gas's chemical Answer: B
composition for storage? Explanation: Because propane and butane
A. It requires cryogenic storage are gases at atmospheric pressure, LP-Gas
B. It needs to be stored in pressurized con- is stored in pressurized containers to keep
tainers it liquefied.
C. It must be kept in open-air tanks
D. It is stored as a solid
3. How does the proportion of propane to bu- Answer: B
tane affect LP-Gas? Explanation: A higher propane content re-
A. It changes the color of the gas sults in higher vapor pressure, which is im-
B. It affects the vapor pressure and perfor- portant for proper gas delivery, especially in
mance in cold weather colder climates.
C. It determines if the gas is odorless
D. It has no practical effect
4. Which component in LP-Gas contributes Answer: B
more to its high vapor pressure? Explanation: Propane has a higher vapor
A. Butane pressure compared to butane, making it
B. Propane critical for ensuring that LP-Gas vaporizes
C. Ethane effectively under varying temperature con-
D. Methane ditions.
5. Why is it important for technicians to under- Answer: B
stand the chemical composition of LP Gas? Explanation: Knowing the composition
1/2
