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Nfd Engineer > Engineer Exam > Flashcards

Engineer Exam Flashcards

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
Q

How long should it take for air pressure to build up in dual systems

A

Pressure should build from 85-100 within 45 seconds in dual systems

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26
Q

Testing air leakage rate

A

Loss rate should be less than 2 psi in 1 minute for single vehicles and less than 3 psi in 1 minute for combination

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27
Q

Total stopping distance

A

Perception distance
Reaction distance
Brake lag distance
Braking distance

= total stopping distance

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28
Q

Air brake lag distance at 55 mph

A

32 feet

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29
Q

What is brake fade

A

Excessive heat caused by overuse and not properly utilizing auxiliary braking systems

Reduces friction and causes expansion of systems

30
Q

Braking switch on dry pavement

A

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
Q

Wet pavement braking

A

Keep on off position.

if maintaining traction go to low position

911,902
Greater stopping power desired move switch to high

32
Q

What group carcinogen is diesel fumes

A

Group 1

Long time exposer

33
Q

DEF

A

Reducing agent
Heats engine to 1100 degrees to burn off spot
Reduces emissions 90%

34
Q

REGEN types

A

Active regen
Driven constantly above 2000 rpm for 20 minutes

Passive regen
Take 15-35 mins and manually done

35
Q

Failed REGEN?

A

Low engine operating temp
Low oil
Low coolant
Low DEF

36
Q

Engine DEF tank at 1/8

A

Engine will begin a process of taking power out of the engine to reduce impact on the system

37
Q

Victim priorities

A
  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
Q

Rescue from a window

A

Position the tip so the area of the window is not diminished

39
Q

Rescue from a roof

A

Tip extends 6 feet above the edge of the roof

40
Q

Conscious adults down the ladder

A

Guided down the ladder on their own.

41
Q

Small children, infants and unconscious adults down ladder?

A

Will require carried down and should be a last resort

42
Q

Arm cradle

A

Small children and infants

Cradled in one arm while balancing with other arm

43
Q

Over shoulder carry

A

Unconscious adults

3 rescuers

Patient face down over shoulders while FF 3 helps FF2 and victim down the ladder

44
Q

Rail straddle carry

A

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
Q

Driving T-911

A

Look 12-15 seconds ahead for traffic and pedestrians

46
Q

7.5.11 Downed Wires

A

NFPA 1500

Step and touch potential or gradient voltage: power lines down will energize around it

47
Q

Transmission line voltage

A

69 luv

48
Q

Primary distribution line

A

7,200-13,200 volts

49
Q

Service lines voltage

A

Pole to larger building
277-480 volts

Pole to small house or building
120-240 volts

50
Q

Distance away from power lines

A

Minimum of 10 feet shall be maintained away from wires

If higher voltage move 50 ft away

51
Q

7.6.1 emergency radio traffic

A

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
Q

Urgent radio traffic

A

Needing duke on scene

Change affecting operations of the situation on scene

Companies who encounter delays to response times

53
Q

7.6.2 Emergency Evacuation

A

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
Q

5.1.7 Refueling apparatus

A

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
Q

5.1.11 apparatus bridge height and weight restrictions

A 
911= 32 tons
901= 17.69 tons 
903= 17.5 tons

911, 903, 901
- no on 4th street bridge or bridge to waterworks

56
Q

5.2.1 EOM report or yearly log

A

First day of each month by engineer of that apparatus

Place report into ER software

57
Q

Newport hydrant colors

A 
Black: 0-99
Red: 100- 499
Orange: 500-999
Green: 1000-1500
Blue: 1500+
58
Q

RECEO-VS

A 
Rescue
Exposure
Confinement
Extinguishment
Overhaul
59
Q

Structure fire 1 response

A 
3 engines
2 ladders
1 medic unit
950, 951
(951 request car 9)
60
Q

Structure fire 2 response

A

2 engines
1 truck
1 medic
1 command officer

61
Q

Rescue situation?

A

IV should request additional alarm and 2 medic units

62
Q

Engineer @ structure fire

A
  • 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
Q

When to request code enforcement

A

Any structure fire for property assessment

64
Q

When to call EMA

A
  • 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
Q

When to call state fire Marshall

A
  • Goverment or educational building with significant damage
  • firefighter injury or death
  • civilian injury or death
66
Q

7.1.4 Vehicle Fires

A

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
Q

1.2.23 response districts

A

901= 1,2,5

903= 3,4

981= 1,3,5
982= 2,4
68
Q

When do you notify the chaplain

A

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
Q

What do we do at 32 degrees with engines

A

Place engine in pump, circulate the pump

Close valves

Increase rpm 500-1000

70
Q

What do we do with engines at 20 degrees

A

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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