Chapter 8

Question 1

___________ is defined as the unintended, and often sudden, release of stored, residual, or potential energy that will cause harm if contacted.

Answer 1

Hazardous Energy

Question 2

The integrity of electrical systems is based on their being properly _______, __________ and ___________.

Answer 2

Grounded
Insulated
Circuit Protected

Question 3

Electricity is always trying to seek the path of _________ to ground.

Answer 3

least resistance

Question 4

Firefighters attempting to approach compromised electrical equipment may feel a tingling sensation in their feet; this is a danger sign known as _____________.

Answer 4

ground gradient

Question 5

Treat all downed power lines as ___________.

Answer 5

energized

Question 6

Keep a safe distance from downed power lines - at least ________.

Answer 6

10 feet

Question 7

Electrical transmission and distribution substations use large ______ to step down voltage.

Answer 7

transformer

Question 8

High-tension wires that separate from anchor points can “________” with tremendous force; that is, when the tension is released suddenly, the wire snaps, or whips, in a direction opposite to the tension force.

Answer 8

reel coil

Question 9

Individual turbine blades can be _________ long, creating a rotational diameter and danger zone of more than _______.

Answer 9

60 - 130 ft.

300 ft.

Question 10

The tips of a 60 foot long blade are actually traveling at more than ________.

Answer 10

70 mph

Question 11

Older, internally located transformers may still contain ___________ - a very toxic carcinogen

Answer 11

Poly-Chlorinated Biphenyls

Question 12

_______ runs are typically located behind interior wall, floor and ceiling coverings.

Answer 12

Romex

Question 13

________ systems can include backup generators, battery banks, or alternative power supplies, such as solar systems.

Answer 13

UPS

Question 14

… These batteries are typically on a slow charging system, creating ________ as a by-product.

Answer 14

hydrogen gas

Question 15

Solar energy is used in two ways:

Answer 15

Electrical generation

thermal heating

Question 16

Solar electrical generation system,s include an array of ______ panels that collect light energy from the sun to stimulate electrons in a silicon crystal or film.

Answer 16

photovoltaic

Question 17

PV systems include an additional roof dead load of _____ per square foot.

Answer 17

3 - 5 pounds

Question 18

A standard 3-foot by 40foot PV panel weighs approximately ______ pounds.

Answer 18

40

Question 19

Solar thermal panels can be distinguished from PV panels by the ______ that is connected to the panel.

Answer 19

piping

Question 20

Solar heating systems have an additional roof dead load of _____ per square foot.

Answer 20

5 - 8 pounds

Question 21

The most important utility to control is _______>

Answer 21

gas

Question 22

The most common utility gases are ______ and _________.

Answer 22

propane

natural gas (methane)

Question 23

Pressurized systems use either _______ (liquids) or _________ (air/gases) as a medium to achieve power or force.

Answer 23

hydraulics

pneumatics

Question 24

Bright orange conduit or cable can indicate high-voltage power (up to _____ volts and _____ amps) is used in the drivetrain of a vehicle

Answer 24

700

125

Question 25

_________ conduits or cables can indicate medium-voltage drivetrains (less than high-voltage systems but more than typical 12 or 24-volt systems)

Answer 25

Bright Blue

Question 26

CNG labels are standardized as a ____ diamond with the words “CNG”, “LNG” within the diamond.

Answer 26

blue

Question 27

Propane-powered vehicles should have a _______ diamond with “Propane” or “LPG” within.

Answer 27

Black

Question 28

Of all the weather considerations affecting firefighting operations, _____ is by far the most important.

Answer 28

wind

Question 29

Wind is created as air masses attempt to reach ___________.

Answer 29

equilibrium

Question 30

A falling _______ can indicate an approaching storm and subsequent wind.

Answer 30

barometer

Question 31

Lower _______ means increased fire spread.

Answer 31

humidity

Question 32

In especially dry environments, firefighters become ________ quickly from breathing as well as sweating.

Answer 32

dehydrated

Question 33

This is the area where no responders are allowed to enter, regardless of PPE, due to dangerous conditions.

Answer 33

no-entry zone

Question 34

This area immediately surround a hazardous area and can be considered an IDLH environment requiring appropriate PPE.

Answer 34

hot zone

Question 35

This area surrounds a hot zone and is where personnel, equipment, and apparatus are operating in support of an operation.

Answer 35

warm zone

Question 36

This area surrounding the warm zone is used for an incident command post, support-agency interfacing, and staging of personnel and equipment.

Answer 36

cold zone

Question 37

Decontamination processes and RIT stand are typically found in the ________.

Answer 37

warm zone

Question 38

It is best to be conservative and add at least _____% to the collapse height.

Answer 38

50

Question 39

PUVCE acronym

Answer 39

Percussive Unconfined Vapor Cloud Explosion

Question 40

_______ safeguards ensure that electricity remains off and valves, switches, and other initiating devices remain in an off or closed position.

Answer 40

Lock-Out/Tag-Out