Confined Space

Question 1

Confined Space has 3 characteristics

Answer 1

1) limited means of access/egress.
2) designed to allow humans to enter and
perform work.
3) not designed for continuous human
occupancy.

Question 2

29 CFR 1910.146, _____ code of federal
regulations on permit-required CS requires
_____ levels of protection. They are _____.

Answer 2

3
1) permitting procedure that IDs hazards and
lists protective/precautionary measures.
2) retrieval equipment necessary to perform
non-entry rescue.
3) rescue services required to be available
to perform rescue inside the CS.

Question 3

permit-required CS have 1 or more of the

following 5 characteristics

Answer 3

1) contains or has the known potential to
contain a hazardous atmosphere.
2) contains a material that could cause
engulfment.
3) has limited access/egress and internal
configuration such that ready removal or
rescue is difficult
4) has a configuration that has the potential to trap or asphyxiate due to
inward converging walls and downward
sloping floors that taper to a smaller
cross section.
5) any other recognized safety or health
hazard.

Question 4

a CS Incident is one in which a victim is

______.

Answer 4

located within an area of limited access/egress.

Question 5

13 Examples of CS

Answer 5

aircraft/ships
bins
boilers
hoppers
mixers
person holes
sewers/aqueducts
silos/grain elevators
tanks (septic/water)
tunnels
underground vaults/pits
water towers
wells

Question 6

6 groups of CS Hazards

Answer 6

atmospheric
biological
corrosive
engulfment
physical 
psychological

Question 7

8 types of Hazardous Atmospheres

Answer 7

O2 deficient
O2 enriched
flammable vapors/extreme Temp
toxic vapors
products of combustion
substance within10% of it's LEL
airborne combustible dust at it's LEL
concentration of substances that
exceed PELs

Question 8

H2S is known as ______. It is _____ and
has an odor that smells like _____. It is
_____ and has an explosive range of _____.
It has a vapor density of _____ and is
formed by the _____.

Answer 8

hydrogen sulfide
colorless
rotten eggs
toxic
4.5%-45.5%
1.19
decomposition of animal or plant life

Question 9

6 types of physical hazards you might find

in a CS

Answer 9

electrical/gas utilities
fall/trip
internal configuration
limited access/egress points
machinery(hydraulic, mechanical, pneumatic)
hazmat or other fluids in space
noise that affects communication/hearing

Question 10

#1 cause of deaths in CS 
#2 cause of deaths in CS

Answer 10

hazardous atmospheres

engulfment

Question 11

Engulfment is the _____.

Answer 11

surrounding and effective capturing of a
person by a liquid or finely divided solid
particles that can be aspirated and/or
cause death.

Question 12

Engulfment can kill by _____ due to _____
or _____. It can also kill by _____, ______,
or _____.

Answer 12

asphyxiation 
filling the airway
blocking the airway
constriction
strangulation
crushing

Question 13

Corrosive Hazards include these 3

Answer 13

acids
alkalis
cleaning materials

Question 14

Biological Hazards include these 5

Answer 14

bacteria
mildew
mold
spores
viruses

Question 15

Psychological Hazards include these 3

Answer 15

anxiety
claustrophobia
any other fears

Question 16

8 tasks for 1st-in Company at an CS Incident

Answer 16

1)initiate the ICS
2)ensure that hazmat/rescue/respective BC
have all been dispatched
3)conduct a scene size up (CAN)
4)establish a 300’ safe zone
5)ensure the scene is safe
6)perform a risk assessment/risk-benefit
analysis
7)perform lockout/tagout procedures if
possible
8)perform non-entry rescue if possible

Question 17

9 parts of CS scene size

Answer 17

1)nature, scope, and magnitude of incident
2)location and # of victims
3)ID hazards
4)risk assessment/risk-benefit analysis
5)determine access/egress points
6)evaluate environmental conditions
7)evaluate need for additional resources
8)determine when patients can be
contacted without endangering personnel
9)continuous monitoring and evaluation

Question 18

10 pieces of information that should be

gathered for CS Incidents

Answer 18

1)the entry permit
2)ID the hazards
3)precautions for those hazards
4)what work was being done in the CS
5)who was doing the work and what were
the personnel assignments
6)point of entry
7)PLS or point of last communication
8)alternate acess/egress points
9)internal configuration of the space
10)time in

Question 19

5 CS Checklists/Worksheets that HFD has
include the following _____.
HFD also has a CS _____ and an example of a CS entry _____.

Answer 19

incident checklist
operations checklist
attendant worksheet
CSR tactical worksheet
monitoring worksheet
flowchart
permit

Question 20

O
A
T
H

Answer 20

1-pull OK
2-pull Advance
3-pull Take-Up
4-pull Help

Question 21

OATH is a

Answer 21

communication acronym for rope signals

Question 22

A SAR hose line can be up to _____ long.

Answer 22

300’

Question 23

4 duties of the CSR attendant include

Answer 23

1)communicating evacuation alerts
2)monitoring entrant status and behavior
changes
3)monitoring activities both inside and
outside of the space
4)ensuring that situations outside the
space will not endanger the entrant

Question 24

when monitoring a CSREs behavior, the

attendant is listening for 3 things

Answer 24

slurred speech
out of character responses
irregular breathing patterns

Question 25

4 behavior changes within a CS could be

caused by _____.

Answer 25

hazardous atmospheres
fatigue
anxiety
oxygen deficiency

Question 26

CS comm. equip highest level of

intrinsically approval is _____.

Answer 26

Class 1,2,3 Division 1,2 Groups A-G

Question 27

CSREs will do the ____ inside the CS if it

is not possible to do it _____.

Answer 27

air monitoring

from outside the space

Question 28

HFD uses _____ equipment for CS rescue

Answer 28

Con-Space Hardline Communication

Question 29

the Con-Space talk box can be lowered
into \_\_\_\_\_ to communicate or listen for 
trapped victims due to \_\_\_\_\_ . It can be
lowered to \_\_\_\_\_ victims or victims in
\_\_\_\_\_ or \_\_\_\_\_.

Answer 29

voids
structural collapse
high angle incident
mines
elevator shafts 
pits

Question 30

2 other possible personnel roles at a CS

incident

Answer 30

equipment and line tending/hauling

air supply management

Question 31

13 HFD Con-Space CS Rescue

Communication Kit # 1 pieces of equipment.

Answer 31

1)command module
2)talk box
3)double splitter
4)behind the head headset(attendant)
5) 4 face mask rescue communication sets
6)operator extension cable with a
microphone mute(attendant)
7)a 1’ microphone mute cable(entrant)
8) 4 100’ sections of orange comms cables
9) a 50’ section of comms cable(talk box)
10) 4 speaker harnesses for entrants
11) 4 clothing clips
12) 4 snap hooks for cable strain relief
13) carrying case

Question 32

command module allows a maximum of 
\_\_\_\_\_ entrants to maintain 100% comms 
or it could allow up to 8 entrants if used
with a \_\_\_\_\_ and has an \_\_\_\_\_.  2 
command modules can be joined together 
through the \_\_\_\_\_.

Answer 32

4
splitter
internal SP modification
rescue/expansion port

Question 33

microphone mutes allows for you to _____
where you can only listen. your sounds
will be _____.

Answer 33

create 1-way communication

completely muted

Question 34

the speaker harness allows you to _____

Answer 34

use the face mask speaker when user is

not required to wear a face mask

Question 35

the double splitter allows the attendant
to control communication with the _____
or _____.

Answer 35

primary entrant or team

secondary entrant or team

Question 36

7 critical functions for CS

Answer 36

mitigate/control hazards
control atmosphere
continuous air supply
continuous communications
equipment/line handling
locate victims
rescue victims

Question 37

HFD ties both the _____ line and the _____

together. The _____ is separate.

Answer 37

communications
SAR hoseline
safety line

Question 38

the “SP Mod” allows a ______ to be used
on Ports _____ and the _____ Port. Port
_____ is for the _____ and/or an _____.

Answer 38

splitter box
1 and 2
operator
3
talk box
additional rescuer

Question 39

the _____ should normally be kept within

a _____ radius of entrant.

Answer 39

talk box

2 meter

Question 40

the throat mic should be just ____.

Answer 40

to the left or right of the adam’s apple

Question 41

“noise reduction” button will help with high

noise levels but users may have _____.

Answer 41

to talk louder

Question 42

keep unused connectors _____

Answer 42

covered/capped

Question 43

battery LED on the command module
indicates low batteries by flashing _____
before complete battery failure

Answer 43

12hr

Question 44

only 1 talk box per system can be used

on entrant ports due to _____.

Answer 44

feedback

Question 45

if using an expanded system, use a _____

to connect the 2 command modules

Answer 45

expansion cable

Question 46

connectors for comms cables are _____.

Answer 46

twist locking

Question 47

appendix _____ of the ConSpace Comms

manual lists the _____ and classifications.

Answer 47

B

intrinsic safe approval levels

Question 48

8 step Con-Space Comms Checklist prior to Entry

Answer 48

1)ensure command module is on
2)alarm module cable in place(if equipped)
3)all accessories/cables connected to
command module
4)all mics are positioned properly
5)all cables are strain relieved
6)ensure 2-way communication
7)check personal alarm button functionality
(if equipped)
8)agree on backup comms procedure