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Toronto Fire Service (TFS) Midterm Exam Preparation: SCBA, IMS, and Radio Communications, Exams of Engineering

This document offers a comprehensive review of key concepts for a toronto fire service midterm exam. it covers essential topics such as self-contained breathing apparatus (scba) components and operation, incident management system (ims) principles, radio communication protocols, and high-rise fire procedures. The questions and answers provided are valuable for exam preparation and enhance understanding of fire safety practices.

Typology: Exams

2024/2025

Available from 05/05/2025

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TFS Midterm Prep Questions and
Answers 100% Pass
The MSA G1 SCBA is a ________________ ✔✔open-circuit, positive pressure SCBA
Air cylinders and valve assembly should be tested ✔✔Every 3-5 years
MSA G1 SCBA COMPONENTS ✔✔- Air cylinders and valve assembly
- G1 Pressure reducer with low pressure warning device
- G1 regulator
- G1 HEADS UP DISPLAY
- G1 face piece
- G1 control module
- G1 speaker module
- G1 power module
- G1 battery module
- G1 Harness and carrier assembly
G1 Pressure relief valve will operate at approx what PSI ✔✔140 PSI
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pfa
pfd
pfe
pff
pf12
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pf14
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pf17
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pf19
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pf1b
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TFS Midterm Prep Questions and

Answers 100% Pass

The MSA G1 SCBA is a ________________ ✔✔open-circuit, positive pressure SCBA

Air cylinders and valve assembly should be tested ✔✔Every 3-5 years

MSA G1 SCBA COMPONENTS ✔✔- Air cylinders and valve assembly

  • G1 Pressure reducer with low pressure warning device
  • G1 regulator
  • G1 HEADS UP DISPLAY
  • G1 face piece
  • G1 control module
  • G1 speaker module
  • G1 power module
  • G1 battery module
  • G1 Harness and carrier assembly

G1 Pressure relief valve will operate at approx what PSI ✔✔140 PSI

G1 Low Pressure alarm will sound at ✔✔1575 (35%) left in bottle

G1 HUD LED Colours (%'s) ✔✔ 4 green LEDs-75 to 100% air pressure

3 green LEDs-50 to 74% air pressure

2 yellow LEDs-36 to 49% air pressure

1 red LED-0 to 35% air pressure

G1 Control Modules provides the following information ✔✔- Numeric air cylinder pressure

  • Battery status
  • Alarms and time remaining at current rate of breathing

G1 Types of alarms: ✔✔- Motion alarm

  • Low air warning alarm
  • Low battery warning alarm
  • Thermal warning alarm

SCBA failures can generally fall into two categories: ✔✔Fail Open

TFS uses _____________ cleaning solution when cleaning/disinfecting face pieces ✔✔confidence plus - 1oz to 3L water

IMS: Accountability definition ✔✔a means for accounting for the location and task assignment of personnel throughout an emergency incident

IMS: Base definition ✔✔- The primary point outside of the incident perimeter where responding apparatus report on a stand by basis and they then get deployed from there

  • Where trucks/ people wait on a standby basis
  • Should be implemented at all multiple alarm incidents

IMS: Branch definitions ✔✔are created at large scale operations to maintain span of control where there are more sectors than the incident commander can control ot when specialized expertise is required

Controlled area definition ✔✔an area where functioning SCBA is required or the IC determines that being able to track fire fighting personnel provides a greater margin or safety

Emergency evacuation signal: ✔✔3 separate distinct blasts of the air horn followed by a 5 second pause - this will be done 2 or 3 times

Incident management system (IMS): ✔✔An organized system of roles, responsibilities and operational guidelines used to manage emergency ops

Priorities during Offensive strategy: ✔✔- rescue

  • life safety
  • stabilization of the incident

Priorites during Defensive Strategy ✔✔- life safety

  • exposures protection
  • conservation of the environment and property

High Rise Staging will be _________ floors below the fire floor ✔✔ 2

Sectoring ✔✔A tool within IMS that allows the incident commander to group personnel and other resources into manageable units at an emergency incident

True/False: The assignment of radio channels at an emergency scene is a decision made by Toronto fire after the IC has requested a new channel ✔✔True

What equipment must be on scene in order for communications to assign a second fire ground channel at the same incident ✔✔DVRS (Digital Vehicle Repeater System)

Primary purpose for utilizing the portable radio identifies: ✔✔Personnel automatically tune their individual listening skills to identify the radio transmissions pertinent to their assigned portable/ vehicle/ station call signs

The first step in calling a mayday is to: ✔✔Press the orange button on your portable Radio

A mayday should be called in the following situations: ✔✔- Trapped FF

  • missing FF,
  • life threatening injury/ situation

Steps to take to call a mayday ✔✔Mayday x3 and then LIP

  • activate pass alarm

During a Mayday, you can only deactive your pass when: ✔✔o You are reached by the RIT

o They need to communicate

o Self rescue is accomplished

True / False: Channel 16 (also FG6) is only to be used when IC says so ✔✔True

Reasons for an Urgent transmissions are: ✔✔o Potential loss of water supply

o Change of interior conditions

o Concern for a potential collapse

What is the purpose of a Benchmark ✔✔- Inform command that a specific task has been completed

  • Allows recording on the running log/ worksheet
  • Allows time stamping on the radio communications recording
  • Gives command progress indicators of the incident
  • entry time
  • radio identifiers
  • assignment/ location
  • cylinder duration
  • time of egress of any personnel passing through the entry control point

Magtag Placement ✔✔- Captain is in the top slot with radio identifier "Cap"

  • Acting captain or senior FF sitting behind the captain in the second slot with radio identifier "CR"
  • Firefighter sitting behind the driver (rookie) in the third slot with radio identifier "CR2"
  • DRIVER of the apparatus in the bottom slot with the radio Identifier "CR3" (Upside Down)
  • Any other ff aboard the apparatus will put their Mag Tag in the "CR4" slot

Anyone not moving forward with a crew at the scene would have their mag tag placed upside down

Passports are kept in the following location: ✔✔- in a designated holder on the captains door of each apparatus

Definition of Freelancing ✔✔Operating independently, without the direction of command

Flat Load ✔✔Arrangement of fire hose in a hose bed or compartment in which the hose lies flat with successive layers one upon the other.

Accordion Load ✔✔Arrangement of fire hose in a hose bed or compartment in which the hose lies on edge with the folds adjacent to each other.

Factors that cause MSD (Musculoskeletal Disorders) ✔✔o Force

o Fixed or awkward postures

o Repetition

o duration

Radios: Normal Trunked: ✔✔tactical and strategic channels are examples of trunking talkgroups

  • Transmissions are received by tower sites and broadcast to Toronto fire, and all other radios on that OPS or TAC channel
  • portables will emit a CHIRP when PTT
  • The forced talk around channel defeats the portable radio's ability to detect the presence of a DVRS and the radio will remain in T/A even when within range of an active DVRS
  • used ONLY during radio relay

Police Code 1 means: ✔✔that police are required immediately at the scene

Common Radio terms used: ✔✔PD ACCIDENT - property damage accident

PI ACCIDENT - personal injury accident

ETA - estimated time of arrival

VSA - vital signs absent

HBD - has been drinking

EDP - emotionally disturbed person Infection disease -

HIV, hepatitis, etc.

Ladders: Ground Ladders are thoroughly cleaned on every ______________ of each month and also after every use. ✔✔- Thursday

An elevator identified with a _______ helmet indicates it is designated as a firefighter elevator ✔✔RED

An elevator identified with a YELLOW helmet indicates it is: ✔✔RETROFIT

Stack Effect is: ✔✔the natural movement of air in and out of a structure

Flashing fireman red button means: ✔✔smoke in elevator shaft, GET OUT.

When responding to a High Rise alarm over ________ stories, TFS personnel are permitted to utilize a designated FF Elevator ✔✔4.

EVAC systems are required for all buildings more than ______ stories ✔✔ 12

The most common stairwell in high-rise buildings are: ✔✔Return Stairwells

Standpipe Operations Classification ✔✔Class 1 - 65mm for firefighters

When charging a standpipe system, charge at ___________ kpa ✔✔1400kpa

When charging a sprinkler system, charge at ____________ kpa ✔✔1050kpa

When providing a building with water, what is plan A-D. ✔✔PLAN A building fire pump

B Fdc connection

C ground floor standpipe

D improvised standpipe

an Area of Refuge is ✔✔any apartment on the fire floor on the same side as the fire apartment

Span of Control: ✔✔ 5

RIT Team (RIT): ✔✔A team of four specially trained firefighters whose responsibility is the rescue/recovery of a firefighter(s) who is trapped, missing or has sustained a life threatening injury

Initial Rapid Intervention Team (IRIT): ✔✔A minimum of two firefighters assigned by the Incident Commander at an emergency incident, whose responsibility is the rescue/recovery of a firefighter(s) who is trapped, missing or has sustained a life threatening injury

The order in which to call the PAR ✔✔prioritized by Sector, beginning with the Sector where there is the greatest concern for firefighter safety

The Entry Control Kit consists of: ✔✔• An Entry Control Board with clock attached

  • An all surface pencil and sharpener
  • An Entry Control vest

Important Radio Noises and significance ✔✔Audible chirp : youre connected to tower

Low hum; out of range , busy line someone else is talking WARBLE; when operating in talk around

Radios: Patching: ✔✔Fireground and tac channel merging communications together

True/False: If radio transmission is heard and they say ' on talk around' you must relay information ✔✔True

Radio Signal Strength should be communicated with the following scale. ✔✔"Strength 1"= Unreadable

"Strength 2"= Readable now and then "Strength 3"= Readable but with difficulty

"Strength 4"= Readable

"Strength 5"= Perfectly readable

Radio and Communications Equipment-Use - Batteries should be change at the ___________________ of every shift and _____________________________. ✔✔Beginning, extended periods of use.

Names and personal references shall not replace any radio alias during transmission except during a _______________ situation. ✔✔May Day

SCBA inspection should be conducted: ✔✔- immediately upon relieving the off-duty shift

  • after each use

SCBA shall be worn in incidences including but not limited to: ✔✔- elevated temperatures,

  • toxic atmospheres,
  • oxygen deficient atmospheres,
  • confined spaces,
  • biologically hazardous atmospheres,
  • any area where the Officer In Charge deems that respiratory protection is or may be required
  • "on air" at all times while inside a structure that has been on fire.
  • Overhaul. not be removed regard less of visibility or Carbon Monoxide (CO) reading

Dust caps colour coding ✔✔- Red - odd year numbers

  • Blue - even year numbers

What size hose do we carry on TFS Trucks ✔✔45mm, 65mm and 100mm

2 types of specialized trucks we have in TFS ✔✔Hazmat, Tower, Fire Boat

What is the difference between an aerial and a ladder truck ✔✔An aerial pumps water

2 types of Fire Trucks in TFS ✔✔Aerials and pumpers

How many stations do we have in Toronto ✔✔ 84