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Truck Company Operations Mittendorph > Chapter 10 & 11 utilities/SR > Flashcards

Chapter 10 & 11 utilities/SR Flashcards

0
Q

Integral part of SR?

A

Proper equipment

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1
Q

Weakest fire ground operations?

A

Search and Reacue

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2
Q

Search and rescue comprised of two phases?

A

Primary phase

Secondary

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3
Q

Three factors in determining path of rescue?

A

Information gathered from occupants

Search an unknown area for victims

attack lines

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4
Q

Generating plants?

A

13,800

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5
Q

Step up transformers?

A

230,000 Volts

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6
Q

Receiving station?

A

34,500

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7
Q

Primary distribution lines?

A

4,800 volts

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8
Q

Secondary distribution lines

A

480
240
120volts

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9
Q

High voltage

A

750-34,500 volts

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10
Q

Transmission insulators can be approx

A

4-14ft

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11
Q

Sub transmission insulators?

A

12-22”

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12
Q

Primary insulators?

A

4-6”

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13
Q

Secondary voltage insulators?

A

2-3”

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14
Q

3 principal ways to eliminate electricity from structure?

A

Depend in local utility company

Shut off service

Cut drip loops

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15
Q

A _____ bolt is used to secure the Cabinate doors, requiring a special wrench to open

A

PENTA

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16
Q

What is step potential?

A

Personnel who step near or between wires can be energized

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17
Q

What shape man hole cover is transformer vault?

A

Square

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18
Q

Telephone line scary ___ volts?

A

45-100 volts

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19
Q

AC

A

Alternating current

Flows on one direction then the other.

20
Q

Amperage?

A

Quantity of electrons moving through a conductor in one second

21
Q

Direct current

A

Flows in one direction

22
Q

Electron?

A

Negatively charged particle of an atom

23
Q

Resistance?

A

Measured on ohms

Compared to friction loss

24
Q

Voltage

A

Moving electrons through conductor

Similar to pressure of water

25
Q

Natural gas is comprised of?

A

Hydrocarbon and ethane

26
Q

NG consists of ___% methane

A

97%

27
Q

Common odorant in NG

A

Thiophane

1 pint per million cubic feet

28
Q

Natural gas is ___ than air?

A

Lighter

29
Q

Flammable range of NG

A

4%-14%

30
Q

Ignition temperature of NG

A

100 f

31
Q

Ten admission lines maintain pressures of up to?

A

1,000psi

32
Q

Transmission lines diameters?

A

12-36”

33
Q

Flow of medium pressure usually does not exceed ___psi

A

60 psi

34
Q

Polyethylene are what colors

A

Pink or orange

35
Q

Older pipes are made of?

A

Steel or copper

36
Q

Pressure inside a customer line?

A

1/3psi

37
Q

MSA’s?

A

Meter set assembly

38
Q

Flat washer on stopcock valve?

A

Plastic pipe inserted in an older metal pipe

39
Q

A ring on a stopcock valve indicates?

A

Branch service

40
Q

A band (green) on riser near stop cock indicates?

A

Service line is plastic

41
Q

Some earth quake probe areas have?

A

Emergency vibration sensitive shutoff device known as earthquake valve

42
Q

Industrial shutoff valves are known as _____valves

A

Nordstrum

43
Q

Natural color code

Red
Orange
Green blue
Yellow

A 
Red-power
Orange-telecommunication 
Green-sewer
Blue-water
Yellow-gas
44
Q

Trunk lines

A

Carry water from a primary source to mains within distribution

45
Q

Trunk lines diameter?

A

36”-10’

46
Q

Mains diameter?

A

2”-72”

47
Q

Service line diameter?

A

1/2”-12”

48
Q

Two types of shutoff valves?

A

Nonindicating

  • ball and cone
  • gate valve

Indicating

  • os&y
  • post indicator

Truck Company Operations Mittendorph (6 decks)

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