121. 11 Engine Flashcards
Where is the original copy of the tools and appliances checklist kept, and where is the copy kept?
The original shall be kept on the apparatus and a copy in the company storeroom.
What time will the on-duty platoon commander of companies insure Inspection of apparatus and all tools and appliances? Where is this information recorded?
Apparatus inspection shall start at 0700 hours, daily. This shall be recorded in the company journal.
What are the guidelines for backing Department vehicles?
-Department vehicles shall not be backed without adequate assistance of at least one other member of the Department.
-All available members shall assist in guiding vehicles into quarters and in such other situations where circumstances dictate the necessity for extreme caution
-if no other members available, driver must dismount walk around unit to see if any obstruction before backing.
When shall all electrically operated devices such as lights, warning signals, AC Units, etc. be
turned off?
When they longer serving a useful purpose.
How often is the oil in the crankcase of apparatus checked?
Oil in the crankcase of apparatus shall be checked daily
What is the proper procedure used to check road transmissions?
To check the fluid level, start at operating temperature and the engine operating at 1000 RPM.
Remove the dipstick, clean, reinsert, remove again and check the fluid level.
If the fluid level is low, add fluid to the “full” mark.
Do not overfill as foaming may result, causing air bubbles in the fluid, which may cause transmission failure due to improper lubrication of parts.
Use only approved transmission fluid.
What is the maximum number of feet of hose that may be extended past the Foam Eductor?
200 feet
How often are grease fittings on apparatus lubricated?
Grease fittings on apparatus shall be lubricated once a month or
on the basis of service performed.
How often are priming pumps checked and lubricated?
Priming pumps shall be checked daily and
lubricated after each use according to type of pump
How often are discharge gates checked and lubricated?
Discharge gates shall be tested for free operation daily and lubricated when necessary.
How often are relief valves checked and lubricated?
Relief valves shall be operated at least daily and lubricated in accordance with the pump manual.
How often apparatus radiators checked and what is the proper procedure for filling a hot radiator with cold water?
The water level in radiators shall be checked daily. Cold water shall not be placed in the hot radiator of any apparatus, except slowly and with the engine running.
When an engine is sent to Fleet Maintenance Division for repairs and will be left unattended,
what equipment remains on the apparatus?
Engines shall be stripped of all tools and appliances except for one CO2 extinguisher.
When a Motor Vehicle Operator’s license is suspended or revoked, what will the member do
and to whom is it addressed?
All members, uniformed and civilian, shall promptly submit a special report to the Safety Officer through their appropriate/division bureau head.
When refueling apparatus or vehicles what precautions will be taken?
(Precautions while refueling apparatus or vehicles are listed 1 through 4.
-engine off
-no smoking
-proper fuel
-don’t top off
When should the gaskets in the barrels and tips of play pipes, wagon pipes, monitor nozzles,
and ladder pipes be inspected?
All gaskets shall be inspected monthly and after each use.
How should the company numbers would be stenciled on fabric-covered hose?
Company numbers shall be placed approximately three feet from couplings.
How many 1 ½” pre-connected hose lines will be equipped on wagons? What are their lengths?
There shall be three pre-connected 1 ½” hose lines; one 350’ and the two remaining lines may vary from 150’ to 250’ in length.
Where is the tag placed on defective hose and what information is placed on the tag?
It shall be tagged at the defective end with the company number, year and nature of defect
placed on the tag.
What shall be done if Departmental vehicles receive the incorrect type of fuel?
Company officers shall notify FM immediately.
Do not start the vehicle until FM decides how the situation will be handled.
How shall tire pressure for all apparatus, vehicles and equipment be maintained?
At the proper level, as marked on the vehicle.
Who is responsible for the daily inspection and maintenance of all EMS equipment, and
where is the equipment carried on apparatus?
On-duty company officers and members shall be responsible for the daily inspection and maintenance of all EMS equipment.
EMS equipment shall be carried in one of the right side compartments.
When are apparatus wheels chocked, and who is responsible?
Any time the apparatus is parked
the driver shall be responsible for proper placement of the wheel chocks
What are the guidelines for cleaning apparatus?
- When cleaning apparatus, water shall not be applied into cabs of apparatus or
vehicles with hose lines. Instead, a mop or sponge shall be used. This also applies to
compartments as well as floorboards, particularly when they are equipped with floor
mats.
-The underside of apparatus including engines, chassis, springs, etc., may be steam
cleaned at an approved facility after permission has been received from Fleet
Maintenance. No steam or detergent shall be used on top of engines around the
carburetor, air cleaner, or electrical wiring.
-Apparatus shall be thoroughly greased immediately after being steam cleaned. Any grease fittings that cannot be greased shall be immediately reported to Fleet Maintenance Division.
What will happen if the discharge outlet of a positive displacement type pump is completely
closed while pumping water?
Either the driving force would be stalled or something would break.
Is the centrifugal pump a positive or a non-positive displacement pump?
The centrifugal pump is a non-positive displacement pump.
Are the veins of the impeller curved away from or toward the direction of rotation?
The vanes of an impeller are curved away from the direction of rotation.
Is there any danger in allowing a pump to run for a long period of time without discharging water? Explain.
The pump would overheat and expansion would take up the clearance between the rings.
The rings would then make contact and seize, resulting in damage to the pump and possibly to the
drive mechanism between motive force and the pump.
Are centrifugal pumps better suited for firefighting apparatus than positive displacement pumps? Explain.
Centrifugal pumps are better suited for firefighting because they create the pressures necessary
for fireground operations by taking advantage of the intake pressure and the initial cost is considerably less.
Is the single stage centrifugal pump equipped with a transfer valve?
The transfer valve is associated with the two-stage pump
Are formulas for Engine Pressure used by the Department absolutely correct? Explain.
Fire ground formulas do not require an exact numerical equation.
It is necessary to “round off” numbers so they can be more easily applied
and memorized.
What do the abbreviations EP, NP, FL, and E represent in the following formula?
EP=NP+FL+or-E
ENGINE PRESSURE = NOZZLE PRESSURE + FRICTION LOSS +or- ELEVATION
When calculating engine pressure, how many P.S.I. are added for each story?
Five pounds are added for each story of elevation.
When two or more pumpers are operating in relay, how much allowance is calculated so that the receiving pumper will have a suitable intake pressure
It has been determined that when there are more than two pumpers in line an allowance of
20 pounds intake pressure is suitable.
What is the normal operating pressure for a pumper at the source of supply in a two pump operation?
A pressure of 125 pounds is used by the pumper at the source of supply
What is meant by Maximum layout?
Maximum layout is the distance that the pump can supply the proper pressure and gallonage for efficient operation.
When you are pumping to two lines from a wye,
how is the engine pressure calculated?
When calculating the engine pressure to supply two lines from a wye or gated wye the flow in
the single hose line to the wye or gated wye, and
the pressure required for only one line from
the wye or gated wye, are used as a basis of calculation.
If the lines from the wye or gated wye
require different pressures,
the line requiring the higher pressure is used.
What is the maximum operating pressure for pumpers?
The maximum operating engine pressure shall be 300 PSI.
What is the nozzle pressure for a 1” tip?
50 PSI
What is the nozzle pressure for a 1 3/4” tip?
80 PSI
What is the nozzle pressure for a 1 1/4” tip?
50 PSI
What is the nozzle pressure for a 2 ½” CVFSS nozzle?
100 PSI
When utilizing the Foam Eductor a minimum of how many psi must be at the Eductor and
what is the minimum gallonage nozzle required to operate the device successfully?
200 PSI, 95 gpm nozzle
What is the friction loss for a cellar pipe?
50 PSI
What is the friction loss for a standpipe connection?
25 PSI
What is the engine pressure used for sprinkler systems?
125 PSI
What is the engine pressure used for a combination sprinkler/standpipe system?
175 PSI
Does the positive displacement pump or
the non-positive displacement pump discharge liquid
in a continuous flow?
The non-positive displacement pump discharges liquid in a continuous flow.
What is an approved treatment to prevent rusting of bare metal tool surfaces?
A light film of oil
A specialized tool for tightening or loosening hose couplings is the __________ wrench.
Spanner
Why is establishing a water supply to the appropriate standpipe in metrorail critical?
Tunnel Standpipes are dry and are not inner connected
What standpipes will be charged on a tunnel incident?
5
1-Tunnel standpipe covering the train location (given by Metro OCC)
2-Standpipe on the inbound side of the incident
4-Standpipe on the out bound side of the incident
5-The Primary Station
6-The Secondary Station
How will Metro report the tunnel fire location?
By Chain Marker Numbers
They are ever 100ft
Letter= Route
Number= track number
Color= line
Number= how many feet from hub station
(gallery pl & metro center)
What is the Passenger Emergency Reporting System (PERS) and where is it located
An intercom located in a pylon on the platform approximately 200 feet from the ends of the
platform
Metro Telephones can be found at what five (5) locations?
1-Blue Light Station Boxes located every 800 feet along Metro Right a way
2-Kiosks
3-Base of Emergency Exit Shafts
4-Near fan control panel at all fan shafts
5-In some Service Rooms
The Standpipe shall be filled with ________________ unless otherwise ordered?
Hydrant Pressure
Up to a pressure of 150
When attempting to stop a Metro Train a signaler will do what?
Utilizing a hand light shall swing the lighted had light horizontally from side to side across the tracks so that it can be seen by the train operator;
While standing 750 feet from incident.
(2 miles for railroad)
In general which company is responsible for the placement of the WASD on a Metro Incident?
Usually the first due truck
Members working in or near the track should remember to constantly look for an area
of ____________________ in the event a train unexpectedly appears?
“Safe Refuge”
No one will enter the track bed until when?
-Permission granted by the Incident Commander
-Metro OCC confirmation of power removed and all train movement stopped Emergency
-Trip Switches (ETS) activated for the section of track
-Third Rail has been tested.
