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Iso > Ch. 8 > Flashcards

Ch. 8 Flashcards

1
Q

How is engergy catagorized

A

Stable

Unstable

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2
Q

How is the integrity of energy catagorized

A

Grounded
Insulated
Protected

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3
Q

What path does electricity follow

A

Least resistance

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4
Q

What electricity has established a path to ground

A

Ground gradient

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5
Q

How many feet does down power line create a concentric ring

A

Up to 30

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6
Q

What is a safe distance from downed powerlines

A

10ft

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7
Q

What is the ignition temp of transformer oil

A

400

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8
Q

Below what temp should transformers be cooled too

A

400

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9
Q

What is the size range of blades on a wind turbine

A

60-130ft

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10
Q

What is the size of the rotational zone

A

300ft

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11
Q

What is an electrical grid typically designed to feed

A

Buildings

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12
Q

Where are Romex runs typically located

A

Behind walls, ceilings, floors

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13
Q

Where is the power supply shut off to a building

A

At the main

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14
Q

What items does an UPS systems include

A

Generators
Batteries
Solar

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15
Q

Where are UPS rooms common place

A

Data storage

Telecommunications

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16
Q

What power do generators produce

A

DC

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17
Q

What 2 ways are solor systems used

A

Electrical Generation

Thermal Heating

18
Q

How many lbs per sq ft do PV panels add

A

3-5

19
Q

What are solor systems designed to do

A

Heat a liquid

20
Q

How many lbs per sq ft do solor panels add

A

5-8

21
Q

How can PV be distinguished from solar panels

A

Piping attached to panel

22
Q

What are the most common gas utilities

A

Natural gas

Propane

23
Q

What do pressurized systems use to achieve power

A

Hydraulics

Pneumatics

24
Q

Bright orange cables indicate up to how many volts

A

700

25
Q

Bright blue cables indicate what voltage range

A

Medium

26
Q

What is the color and shape of CNG label

A

Blue Diamond

27
Q

What is the most important weather factor for fire fighting

A

Wind

28
Q

What clouds indicate high winds

A

Lenticular

29
Q

Fire spread is increased by

A

Low humidity

30
Q

What is the 1st priority in dealing with hazardous energy

A

Hazardous awareness

31
Q

What are the 4 types of control zones

A

N
H
W
C

32
Q

What is the 2nd priority of preventative action

A

Zoning

33
Q

What percentage is added to height of collapse

A

50%

34
Q

What percentage is added to recoil of cable

A

25

35
Q

What is the 1st preventive action of hazardous energy

A

Awareness

36
Q

What pressure is created upwind from the blades

A

Negative

37
Q

What pressure is created downwind from the blades

A

Positive

38
Q

Where are breaker boxes typically located in larger commercial buildings

A

Interior

39
Q

What does a 3x4 PV panel weigh

A

Approx 40 lbs

40
Q

What causes the sudden release of mechanical systems

A

Heat
Overload
Trauma

Iso (5 decks)

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