Mastering High-Pressure Distribution Systems and Valve Placement in Natural Gas...

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Which of the following is a goal of the book mentioned in the text?

Learn about the different types of natural gas emergencies.
Practice training methods for responding to natural gas emergencies.
Learn about the positive side of experiences like gas leaks.
Understand the background information about natural gas and its delivery system. (correct)

What is the positive side of experiences like gas leaks called?

Post traumatic growth (correct)
Metal oxide detection
Strategic summary
Underground migration

What is recommended to increase safety and effectiveness when detecting gas?

Use a 2", 60 psi main for gas delivery.
Pair an inexpensive metal oxide detector with a 4 gas monitor. (correct)
Use a metal oxide based explosive gas detector.
Increase the pressure of the gas main.

Which gas leak response tactic is recommended by the text?

Evacuate civilians as quickly as possible (B) Signup and view all the answers

Which gas component is the single largest contributor in natural gas?

Methane (D) Signup and view all the answers

What is the purpose of a curb box in a residential gas distribution system?

To open or close the flow of gas from the main into the service line (C) Signup and view all the answers

What is the common setup for an indoor meter with an outdoor valve and regulator?

There will not be a curb valve (C) Signup and view all the answers

Which of the following is the correct depth range for burying gas transmission lines in normal soil according to federal regulations?

30" to 36" (D) Signup and view all the answers

What is the typical background level of methane in air?

2 PPM-M (C) Signup and view all the answers

Which type of pipe is typically yellow-clad and sold in 75' coils?

CSST (C) Signup and view all the answers

What is the purpose of bump testing for air monitoring equipment?

To react properly to a known concentration (C) Signup and view all the answers

What is the purpose of the vent in the gas system?

To dump gas outside if the regulator fails (A) Signup and view all the answers

What is the recommended tactical consideration for air monitoring equipment?

Pair your 4 gas monitor with an explosive gas meter (B) Signup and view all the answers

What is the main cause of damage to flex lines in the gas piping system?

Repeated moving and flexing (D) Signup and view all the answers

What is the recommended action when responding to potential or actual lightning strikes?

Ask occupants early on in your size-up and always follow up with your meters (A) Signup and view all the answers

Which of the following is the correct flammable range for natural gas (NG)?

5% to 15% gas in air (C) Signup and view all the answers

What is the vapor density of natural gas (NG) relative to air?

0.57-0.62 (C) Signup and view all the answers

What is the minimum amount of gas required to ignite or explode when mixed with air and an ignition source at normal pressures and temperatures?

5% gas in air (C) Signup and view all the answers

What is the purpose of odorizing natural gas (NG)?

To make it readily detectable (C) Signup and view all the answers

Which type of leak is considered the most hazardous and requires immediate repair or continuous action until conditions are no longer hazardous?

Grade 1 (A) Signup and view all the answers

What is the purpose of gate stations in a natural gas distribution system?

All of the above (D) Signup and view all the answers

What is the range of pipe diameters for distribution lines or 'mains' in a natural gas distribution system?

2" to 24" (B) Signup and view all the answers

What is the purpose of processing raw gas at a processing plant in a natural gas distribution system?

All of the above (D) Signup and view all the answers

Which organization maintains jurisdiction over the safety of transmission pipelines?

The US Department of Transportation (DOT) (D) Signup and view all the answers

What is the maximum internal pressure at which a pipeline or pipeline segment may be continuously operated called?

Maximum allowable operating pressure (MAOP) (A) Signup and view all the answers

What is the pressure range for low pressure distribution systems?

14" of water column or about 0.5 psi (A) Signup and view all the answers

What materials are used for medium pressure distribution systems?

Steel and select plastic (A) Signup and view all the answers