Utility Flashcards
Propane has a vapor density of ____ and will ____ in air.
A. 1.40, rise
B. 1.56, sink
C. 0.50, rise
D. 1, mix
1.56, sink
pg 25
If the detection equipment shows a CO reading of ___ppm or above, the occupancy shall be immediately evacuated and crews should retreat from the structure and don their SCBA.
A. 10
B. 25
C. 35
D. 50
35
pg 29
The continuous movement of free electrons through the conductors of a circuit is called a ____ and is measured in _____.
A. Current, voltage
B. Flow path, amps
C. Current, amps
D. Flow path, voltage
Current, amps
pg 31
Electrical burns must be treated at what type of medical center?
A. Level I trauma center
B. Burn Center
C. Free-standing Emergency Department
D. Level II trauma center
Burn Center
pg 43
The top line of numbers on a utility pole indicates which number?
A. GPS coordinates
B. Map grid number
C. Pole number
D. Approximate voltage
Map grid number
pg 36
During a natural gas related emergency, the curb box shut off may be located by finding which indicators on or near the street?
A. Green painted lines or utility company discs
B. Orange painted lines or utility company placard
C. Red painted lines or utility company placard
D. Yellow painted lines or utility company discs
Yellow painted lines or utility company discs
pg 23
When given an order to take care of or secure utilities, what is this referring to?
A. Water
B. Water and electric
C. Electric
D. Electric and gas
Electric and gas
pg 5
Miss Utility can be reached by dialing the following number in VA?
A. 411
B. 611
C. 811
D. 911
811
pg 7
The ignition temperature for natural gas is?
A. 1000F
B. 1200F
C. 1350F
D. 1500F
1200
pg 8
Which of the following is correct regarding pipeline marking systems?
A. Markers show the exact location of the pipeline
B. Pipelines follow a straight line between two markers
C. Signs on the markers do not indicate the commodity transported
D. Markers do not indicate how deep the pipeline is buried or how many lines are in the area
Markers do not indicate how deep the pipeline is buried or how many lines are in the area
pg 10
For a reported outside gas leak, a break in what diameter line should the incident be upgraded to a hazardous materials response?
A. 0.5 inch
B. 0.75 inch
C. 1 inch
D. 2 inch
2 inch
pg 14
When gas meters are located on the interior, members should be looking for a vent pipe on the outside wall. The vent pipe will likely have a cover screen to keep water, insects, and debris out of the gas relief piping. This piping vent pipe must be withing how many feet of the vent on the inside of the wall?
A. 10 feet
B. 8 feet
C. 5 feet
D. 3 feet
5 ft
pg 22
What is considered a momentary outage?
A. An electrical outage lasting two minutes or less
B. An electrical outage that lasts for more than three minutes
C. An electrical outage lasting three minutes or less
D. An electrical outage that lasts for more than two minutes
An electrical outage lasting two minutes or less
pg 2
APWA color code Red is for which of the following?
A. Gas, oil, steam, petroleum, or gaseous materials
B. Communications, alarm, or signal lines, cable, or conduit
C. Electric, cable, conduit, and lighting cable
D. Proposes excavation.
Electric, cable, conduit, and lighting cable
pg 6
____is a simple hydrocarbon consisting of carbon and hydrogen.
A. Polyvinyl chloride
B. Propane
C. Methane
D. Coal
Methane
pg 8
What is the first engine company positioning on a outside gas emergency?
A. Prior to, downwind, and no closer than 100 feet
B. Prior to, down wind and no closer than 50 feet
C. Prior to, upwind and no closer than 100 feet
D. Prior to, upwind and no closer than 50 feet
Prior to, upwind and no closer than 100 feet
pg 13
Fire department personnel shall ensure no persons enter a trench more than ____feet deep that is not shored.
A. 3 feet
B. 5 feet
C. 10 feet
D. 15 feet
5 feet
pg 15
All non-essential personnel, including firefighters and civilians, shall be kept out of the hot zone. The DOT ERG suggests an evacuation distance of ____feet.
A. 100 feet
B. 150 feet
C. 250 feet
D. 330 feet
330 feet
pg 16
Most piping located underground in a curb box is usually at a depth of ____.
A. 2’-3’
B. 3’-5’
C. 4’-8’
D. 8’-10’
2’-3’
pg 23
The mercaptan is added at a rate of ____of liquid propane.
A. 1 pound per 1,000 gallons
B. 1 pound per 3,000 gallons
C. 1 pound per 5,000 gallons
D. 1 pound per 10,000 gallons
1 pound per 10,000 gallons
pg 25
What is the name of the area that is located between regular use floors, commonly located in hospitals and laboratory type buildings to allow space for the mechanical systems of the building?
A. Cockloft
B. Interstitial Space
C. Mezzanine
D. Utility Shaft
Utility Shaft
pg 41
When dealing with an electrical fire in vault, a transformer is labeled “Non-PCB” what is true about that transformer?
A. It does not contain any measurable PCBs
B. It may contain up to 10% PCBs
C. It will not off-gas CO when burning
D. It was made before 1970
It may contain up to 10% PCBs
pg 40
Utility poles in Northern Virginia typically are labeled with two sets of numbers, what does the top set of numbers signify?
A. The map grid where that pole is located
B. The specific pole number within a map grid
C. The distance in feet from the nearest pole station
D. The type of utilities on that pole
The map grid where that pole is located
pg 36
When dealing with electrical utility emergencies what is considered the safest insulator?
A. Rubber
B. Cloth
C. Time
D. Distance
Distance
pg 35
The power lines that run from a pole to a residence are called what?
A. Primary lines
B. Secondary lines
C. Superior lines
D. Neutral lines
Secondary lines
pg 34
When dealing with a downed power line emergency, what is the difference in voltage between two different points?
A. Step potential
B. Voltage fade
C. Resistance profile
D. Current difference
Step potential
pg 32
With regards to electrical shock, what characteristic is the main factor in determining the severity of shock?
A. Voltage
B. Resistance
C. Radiation
D. Current
Current
pg 31
According to the US Environmental Protection Agency, what is an acceptable level of CO exposure in a residential building?
A. Up to 10PPM
B. 9PPM or less over eight hours
C. 35PPM over 24 hours
D. 35-75PPM
9PPM or less over eight hours
pg 29
What defines a concentration that is below the LEL?
A. Too much fuel and not enough oxygen
B. Too much oxygen and not enough fuel
C. Too much fuel and too much oxygen
D. Not enough fuel and not enough oxygen
Too much oxygen and not enough fuel
pg 4
The APWA’s color code yellow indicates what underground utilities?
A. Electric, cable, conduit, and lighting cable
B. Communications, alarm, or signal lines, cable or conduit
C. Gas, oil, steam, petroleum, or gaseous materials
D. Reclaimed water, irrigation and slurry lines
Gas, oil, steam, petroleum, or gaseous materials
pg 6
What is the proper sequence for shutting off utilities in either a leak or a fire situation?
A. At the appliance, at the meter, at the curb box
B. At the meter, at the appliance, at the curb box
C. At the meter, at the curb box, at the appliance
D. At the curb box, at the appliance, at the meter
At the appliance, at the meter, at the curb box
pg 12
When a gas leak is in a line that is reported to be over ___ inches in diameter, the incident should be upgraded to a hazardous materials response.
A. Two
B. Three
C. Four
D. Five
Two
pg 14
Who may attempt to shut off gas service by operating valves in street boxes or manholes?
A. Truck company personnel
B. Rescue company personnel
C. Truck and rescue company personnel
D. Only utility company personnel
Only utility company personnel
pg 23
What is the best course of action to take when an outside propane tank is venting and the product is burning?
A. Close the tank valve
B. Manually reset the relief valve
C. Cool the tank at the vapor space
D. Turn the tank over
Cool the tank at the vapor space
pg 26
When are firefighters allowed to enter underground electric vaults, manholes, and substations?
A. Whenever deemed necessary by the IC
B. When in the presence of the utility company
C. When there is an active rescue
D. Never
Never
pg 39
A sustained outage is when power had been out for more than ____ minutes?
A. 20 minutes
B. 10 minutes
C. 3 minutes
D. 2 minutes
2 min
pg 3
For outside gas leaks, the general rule for apparatus positioning is no closer than ____ft for the
first-arriving unit and a minimum distance of ____ft for all other incoming units.
A. 150; 350
B. 100; 300
C. 100; 250
D. 150; 250
100; 300
pg 13
What is the approved APWA color code for marking communications?
A. Purple
B. Yellow
C. Orange
D. Blue
Orange
pg 6
If an outside gas line over 2 inches in diameter is compromised what must the call be
upgraded too?
A. Outside gas leak
B. Inside gas leak
C. Utility Fire
D. Hazardous materials response
Hazardous materials response
pg 15
