EOG 300 pg 64-66 Residential Utility Shut-Off and natrual gas, water and propane

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Questions and Answers

Where are disconnects (large switches) found?

Large buildings

Large homes and factory’s

Some homes and many commercial/industrial occupancies (correct)

Apartment buildings

What type of fuses might be found in older homes that allows for easy removal to shut off power?

Miniature circuit fuses

Circuit breaker fuses

Screw-base fuses and/or pullout disconnects that hold cartridge fuses (correct)

Standard plug fuses

What are the two types of electrical disconnections mentioned for shutting off power?

Main disconnects and inline fuses

Screw-base fuses and pullout disconnects (correct)

Double-pole breakers and cartridge fuses

Fuse box and circuit breaker

Which option is not mentioned as a type of disconnect that may be present in older homes?

Smart fuses Signup and view all the answers

What should be done with individual breakers when shutting off electricity at a residential property?

If you turn off individual breakers, note which ones and wether the individual breaker was tripped Signup and view all the answers

Why is it important for PSO and ONG to respond in cases of utility damage?

They ensure the owner will repair and inspect the system. Signup and view all the answers

In which scenario should the main breaker be shut off instead of individual breakers?

When the status of breakers is crucial for investigation. Signup and view all the answers

What should be done if a breaker is in the tripped position?

Note its position and avoid messing with it. Signup and view all the answers

What is a reliable indicator that a gas valve is in the 'off' position?

The padlock holes line up. Signup and view all the answers

Which statement about water meter valves is correct?

They normally have a definite stop at the 'on' and 'off' positions. Signup and view all the answers

Where is the valve typically located on propane tanks?

On the top, sometimes under a bonnet. Signup and view all the answers

What must structural companies avoid doing with gas lines?

Capping gas lines. Signup and view all the answers

What should companies identify in the area regarding propane?

Emergency shutoff valves. Signup and view all the answers

Which actions is prohibited for TFD members?

Pulling meters, cutting wires, or remove single cartridge fuses Signup and view all the answers

What should TFD members avoid doing with wires?

Cutting them Signup and view all the answers

Which of the following is included in the restriction for TFD members?

Removing single cartridge fuses Signup and view all the answers

Which task is explicitly forbidden for TFD personnel?

Pulling meters or cutting wires Signup and view all the answers

Tanks at propane fill stations take their supply from the bottom of the tank and will have a remote shut off handle similar to?

Bobtail delivery trucks Signup and view all the answers

Study Notes

Residential Utility Shut-Off

TFD can shut off utilities safely in residential areas, usually at one and two-family homes.
When utilities are damaged, the Incident Commander (IC) must call PSO and ONG to pull meters to prevent unsafe usage.
Property owners must repair and inspect utilities before restoring service, especially important in rental properties.

Electric Shut-Off

Control electricity by turning off the main breaker at the electrical panel, avoiding individual breakers to aid in fire investigations.
If individual breakers are turned off, document their status (on or tripped).
Older homes may use screw-base fuses or pullout disconnects to shut off power.
Larger switches, known as disconnects, are found in some homes and many commercial/industrial buildings.

Natural Gas Shut-Off

Shut off natural gas by turning the meter valve 90 degrees to the pipe; the valve can spin infinitely.
Line up padlock holes to confirm the valve is in the "off" position.
TFD members are prohibited from plugging or capping gas lines.
Some gas meters are located in underground canisters similar to water meters.

Water Shut-Off

Water meter valves function similarly to gas meter valves, with distinct "on" and "off" positions.
In the "off" position, padlock holes also align for verification.

Propane Shut-Off

Propane tanks have a valve on top, which may be shielded by a padlocked bonnet or dome.
Some industrial setups use valves located at the end of the tank for easy access.
Propane fill stations draw supply from the bottom of tanks and feature remote shut-off handles.
Awareness of local emergency shutoff valve locations is crucial for safety.

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Description

This quiz covers the protocols for shutting off utilities during emergencies by the TFD. It emphasizes the importance of involving PSO and ONG when there is any damage to the utility systems, ensuring safety and proper repairs for residential properties. Test your knowledge on these critical procedures!