Question 1

Most propane systems operate at a pressure of 11" W.C.

Accepted Answer

Most residential propane systems are designed to operate at a pressure of 11 inches of water column (W.C.), which is a standard measurement for low-pressure gas systems.

Question 2

LP gases can be used for heating, refrigeration, transportation, and cooking.

Accepted Answer

LP gases, such as propane and butane, are versatile and can be used for heating, refrigeration, transportation, and cooking due to their energy efficiency and portability.

Question 3

Which pipe sizing method allows for the use of smaller diameter fuel gas piping with higher pressure fuel gas distribution?
A)hybrid pressure
B)equivalent length
C)longest run
D)branch length

Accepted Answer

The hybrid pressure method allows for the use of smaller diameter fuel gas piping by utilizing higher pressure in the distribution system, which reduces the pipe size needed for the same flow rate.

Question 4

Why are propane tanks filled to 80 percent capacity instead of 100 percent capacity?

Accepted Answer

The answer of Why are propane tanks filled to 80...

Question 5

Which term means the amount of heat that is released when a fuel is completely burned?
A)heating value
B)specific gravity
C)therm
D)British Thermal Unit

Accepted Answer

The heating value is the amount of heat released when a fuel is completely burned.

Question 6

According to the National Fuel Gas Code , when must fuel gas piping be tested?
A)after installation
B)before and after connecting appliances
C)before operation
D)all of the above

Accepted Answer

Fuel gas piping must be tested after installation, before and after connecting appliances, and before operation to ensure safety and compliance with the National Fuel Gas Code.

Question 7

The optimum reading for carbon monoxide in the delivered air stream is
A)less than 10 PPM
B)less than 1 PPM
C)less than .1 PPM
D)zero

Accepted Answer

The answer of The optimum reading for carbon monoxide in...

Question 8

On a propane system, a pilot burner with a narrow, sharp flame has which of the following problems?
A)clogged pilot filter
B)too much draft
C)undersized orifice
D)excessive gas pressure

Accepted Answer

A narrow, sharp flame in a pilot burner typically indicates an undersized orifice, which restricts the flow of gas and results in a smaller flame.

Question 9

Which of the following is an advantage of using propane as a fuel source?
A)cost-effectiveness
B)ease of conversion
C)availability
D)all of the above

Accepted Answer

Propane is cost-effective, relatively easy to convert for use in various applications, and widely available, making all the options listed advantages of using propane as a fuel source.

Question 10

Pipe sizing for most residential and small commercial buildings using propane is done using which of the following methods?
A)hybrid pressure
B)equivalent length
C)longest run
D)branch length

Accepted Answer

The longest run method is commonly used for sizing propane pipes in residential and small commercial buildings. It involves calculating the pressure drop for the longest run of piping to ensure adequate pressure at all appliances.

Question 11

NFPA 58 dictates requirements for installations inside the building.

Accepted Answer

NFPA 58 primarily covers the storage, handling, transportation, and use of liquefied petroleum gas (LPG) outside of buildings, not installations inside buildings.

Question 12

___________ is the operating pressure that can be found at the regulator or meter to the gas valve on the appliance.
A)Static pressure
B)System pressure
C)Liquid pressure
D)Gauge pressure

Accepted Answer

System pressure refers to the operating pressure found at the regulator or meter to the gas valve on the appliance.

Question 13

The ideal combustion ratio for propane is 1 part propane to 10 parts air.

Accepted Answer

The answer of The ideal combustion ratio for propane is...

Question 14

LP gases are derived from the refining processes for natural gas and crude oil.

Accepted Answer

LP gases, such as propane and butane, are by-products of natural gas processing and crude oil refining.

Question 15

What safety precautions should be taken if a gas leak is suspected?

Accepted Answer

The answer of What safety precautions should be taken if...

Quiz 14: Fundamentals of LP

Most propane systems operate at a pressure of 11" W.C.

LP gases can be used for heating, refrigeration, transportation, and cooking.

Which pipe sizing method allows for the use of smaller diameter fuel gas piping with higher pressure fuel gas distribution?

Why are propane tanks filled to 80 percent capacity instead of 100 percent capacity?

Which term means the amount of heat that is released when a fuel is completely burned?

According to the National Fuel Gas Code , when must fuel gas piping be tested?

The optimum reading for carbon monoxide in the delivered air stream is

On a propane system, a pilot burner with a narrow, sharp flame has which of the following problems?

Which of the following is an advantage of using propane as a fuel source?

Pipe sizing for most residential and small commercial buildings using propane is done using which of the following methods?

NFPA 58 dictates requirements for installations inside the building.

___________ is the operating pressure that can be found at the regulator or meter to the gas valve on the appliance.

The ideal combustion ratio for propane is 1 part propane to 10 parts air.

LP gases are derived from the refining processes for natural gas and crude oil.

What safety precautions should be taken if a gas leak is suspected?