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Engineer Exam Flashcards

(70 cards)

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1
Q

Engine 901 specs

A

1996 Spartan Ferrara pumper
450HP Detroit series 60

17.5 tons
Length: 27 ft, (324”)
Height: 8 ft, (96”)
Width: 8.6 ft (102”)

750 gal of water
50 gal of diesel fuel

Hale single stage 1500 GPM pump

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2
Q

Engine 903 specs

A

2017 pierce Enforcer
Engine: 505 HP Detroit

22 tons, (44,000lbs)
Length, 28.3 ft (339”)
Height, 8 ft 9 inches (105”)
Width, 8.6 ft (102”)

500 gallons of water
50 gallons of fuel
Tire pressures: 130 front, 120 In rear

1500 GPM single stage hale pump

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3
Q

FL Coefficient for 1 3/4 hose

A

15.5

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4
Q

Friction loss coefficient for 2 1/2 inch hose

A

2

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5
Q

Friction loss coefficient for 3 inch hose

A

0.8

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6
Q

Friction loss coefficient for 4 inch hose

A

0.2

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7
Q

Friction loss coefficient for 5 inch hose

A

0.08

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8
Q

Friction loss formula

A

FL = CQ(2)L

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9
Q

Nozzle pressure formula

A

GPM= 29.7 x d(2) /P

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10
Q

Nozzle pressure smooth bore handling

A

50 psi

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11
Q

Nozzle pressure smooth bore master stream

A

80 psi

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12
Q

Nozzle pressure chief nozzle hand line

A

55 psi

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13
Q

Nozzle pressure FDC standpipe?

A

150 max 180 psi

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14
Q

Foam eductor pressure

A

200 psi

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15
Q

Relay pumping pressure

A

50 psi

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16
Q

What are Jacobs brakes

A

Brakes on 911, 902.

Uses the engine exhaust to retard the engine therefore slowing speeds by altering the valve on the exhaust

Power absorbing air compressor

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17
Q

Transmission retarding device

A

On 903, 901

Transmission device that uses oil and directs it to the transmission to slow the vehicle through the drive shaft

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18
Q

Air brakes

A

3 different braking systems

Service brake: using the brake pedal

Parking brake: applies and release brakes when you use the parking brake control

Emergency brake: uses parts of the service brake and brake systems to slow the vehicle in a failure

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19
Q

Air compressor governor

A

Controls when the air compressor will pump air into storage tanks

Cut out level is normally 125 psi

Cut in level is normally 85 psi

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20
Q

Safety valve

A

Installed in the first tank the compressor pumps air into

Protects the tank from too much pressure. Set to open at 150 psi

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21
Q

Low air pressure warning device

A

A warning signal you can see must come on before the air pressure falls below 60 psi

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22
Q

When do trucks spring brake come on?

A

Come on fully when air pressure drops to a range of 20-45 psi

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23
Q

What are ABS brakes

A

Computerized system that keeps your wheels from locking up during hard braking

Only activated when wheels are going to lock up

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24
Q

What are dual air brake systems

A

2 separate systems

1 system operates the regular brakes on the rear axles

1 system operates regular brakes on front axles

Needs a minimum of 100 psi prior to driving

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25
How long should it take for air pressure to build up in dual systems
Pressure should build from 85-100 within 45 seconds in dual systems
26
Testing air leakage rate
Loss rate should be less than 2 psi in 1 minute for single vehicles and less than 3 psi in 1 minute for combination
27
Total stopping distance
Perception distance Reaction distance Brake lag distance Braking distance = total stopping distance
28
Air brake lag distance at 55 mph
32 feet
29
What is brake fade
Excessive heat caused by overuse and not properly utilizing auxiliary braking systems Reduces friction and causes expansion of systems
30
Braking switch on dry pavement
901, 903 Keep switch in low position on flat roads where braking power not needed When it’s carrying a load and dry put the switch in high (911,902)
31
Wet pavement braking
Keep on off position. if maintaining traction go to low position 911,902 Greater stopping power desired move switch to high
32
What group carcinogen is diesel fumes
Group 1 Long time exposer
33
DEF
Reducing agent Heats engine to 1100 degrees to burn off spot Reduces emissions 90%
34
REGEN types
Active regen Driven constantly above 2000 rpm for 20 minutes Passive regen Take 15-35 mins and manually done
35
Failed REGEN?
Low engine operating temp Low oil Low coolant Low DEF
36
Engine DEF tank at 1/8
Engine will begin a process of taking power out of the engine to reduce impact on the system
37
Victim priorities
1. Most severely threatened by current fire conditions 2. Largest number or groups of people 3. Remainder of people in fire area 4. People in exposed areas
38
Rescue from a window
Position the tip so the area of the window is not diminished
39
Rescue from a roof
Tip extends 6 feet above the edge of the roof
40
Conscious adults down the ladder
Guided down the ladder on their own.
41
Small children, infants and unconscious adults down ladder?
Will require carried down and should be a last resort
42
Arm cradle
Small children and infants Cradled in one arm while balancing with other arm
43
Over shoulder carry
Unconscious adults 3 rescuers Patient face down over shoulders while FF 3 helps FF2 and victim down the ladder
44
Rail straddle carry
Unconscious adults 3 rescuers Victim placed perpendicular across ladder rails in arms of FF2 who has hands on ladder for support FF3 guides FF2 down
45
Driving T-911
Look 12-15 seconds ahead for traffic and pedestrians
46
7.5.11 Downed Wires
NFPA 1500 Step and touch potential or gradient voltage: power lines down will energize around it
47
Transmission line voltage
69 luv
48
Primary distribution line
7,200-13,200 volts
49
Service lines voltage
Pole to larger building 277-480 volts Pole to small house or building 120-240 volts
50
Distance away from power lines
Minimum of 10 feet shall be maintained away from wires If higher voltage move 50 ft away
51
7.6.1 emergency radio traffic
NFPA 1802 OSHA 1910 Emergency traffic IC needs more resources upon arrival Needing police protection A company on scene encounters a victim and needs to notify the incident Incident needing immediate action for safety reasonings Changing conditions on scene
52
Urgent radio traffic
Needing duke on scene Change affecting operations of the situation on scene Companies who encounter delays to response times
53
7.6.2 Emergency Evacuation
NFPA 1500 - Structural compromise - Worsening fire conditions - Loss of water supply - any condition the IC or safety officer seems threatening Blow air horn 10 seconds -everyone shall leave the structure. IC will announce “evacuate, evacuate” x2
54
5.1.7 Refueling apparatus
Refuel at 3/4 of a tank If using a gas can, on unit number put in the unit the tank is from Fuel receipts go into administrative assistant mailbox
55
5.1.11 apparatus bridge height and weight restrictions
``` 911= 32 tons 901= 17.69 tons 903= 17.5 tons ``` 911, 903, 901 - no on 4th street bridge or bridge to waterworks
56
5.2.1 EOM report or yearly log
First day of each month by engineer of that apparatus Place report into ER software
57
Newport hydrant colors
``` Black: 0-99 Red: 100- 499 Orange: 500-999 Green: 1000-1500 Blue: 1500+ ```
58
RECEO-VS
``` Rescue Exposure Confinement Extinguishment Overhaul ```
59
Structure fire 1 response
``` 3 engines 2 ladders 1 medic unit 950, 951 (951 request car 9) ```
60
Structure fire 2 response
2 engines 1 truck 1 medic 1 command officer
61
Rescue situation?
IV should request additional alarm and 2 medic units
62
Engineer @ structure fire
- visualize 3 sides - allow additional units and aerial positioning - take into consideration obstructions - properly position apparatus - monitor foreground channel - pump apparatus - communicate with IC - obtain water supply - anticipate additional lines - provide support functions
63
When to request code enforcement
Any structure fire for property assessment
64
When to call EMA
- major urban fires - industrial fires - public utility fire or explosion - any fire with injury or death - determines cause to be natural disaster - evacuation of 3 or more families - fires with assistance with state fire Marshall
65
When to call state fire Marshall
- Goverment or educational building with significant damage - firefighter injury or death - civilian injury or death
66
7.1.4 Vehicle Fires
Place upwind uphill 1 unit with 3 members response Minimum of 1 3/4 handling Engineer shall be in class C uniform with high vis vest on Energy absorbing bumpers explode so approach from corners Batteries explode due to hydrogen vapors
67
1.2.23 response districts
901= 1,2,5 903= 3,4 ``` 981= 1,3,5 982= 2,4 ```
68
When do you notify the chaplain
Possibility of injury or death to firefighter Witnessed trauma injury At request of IC Send chaplain to the hospital if critical injury of member or request of IC
69
What do we do at 32 degrees with engines
Place engine in pump, circulate the pump Close valves Increase rpm 500-1000
70
What do we do with engines at 20 degrees
Stay in the firehouse Do not stay outside over an hour unless on runs Throughout the day open caps and drains If on a fire crack hose lines and circulate the pump

Nfd Engineer (1 decks)

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