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Flashcards in IFSTA Book Deck (53)
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1

5 things that make a quint a quint

Fire pump, water tank, hose, aerial device, ground ladders

2

Steering wheel play should be no more than _____

10 degrees in either direction

3

DPF

Diesel Particulate Filter

4

What does DPF do?

Traps much of the particulate matter in exhaust emissions

5

DEF

Diesel Exhaust Fluid

6

What does DEF do?

It is injected into the gas in order to reduce the Nitrogen Oxide emissions from diesel engines

7

HEST

High Exhaust System Temperature

8

Inside/Outside method of apparatus placement

Aerial positioned outside pumper if building is less than 5 stories tall. Aerial positioned inside the pumper if building is more than 5 stories tall.

9

Water expands _______ when converted to steam.

1700 times.

10

PIV

Post Indicator Valve

11

What does a PIV do?

Controls underground water mains found on the supply main of installed fire protection systems.

12

OS and Y Valve

Outside Screw & Yoke Valve

13

What does an OS and Y valve do?

Control valve for a sprinkler system

14

Equation for flow from a solid stream nozzle

GPM = 29.7 x D squared x square root of NP

15

Equation for nozzle reaction for solid stream nozzle

NR = 1.57 x D squared x NP

16

Equation for nozzle reaction for fog stream nozzle

NR = 0.0505 x Q x square root of NP

17

Field equation for nozzle reaction from a solid stream nozzle

NR = Q/3

18

Field equation for nozzle reaction from a fog stream nozzle

NR = Q/2

19

Friction loss in an appliance where flow is less than ______ is generally considered to be insignificant

350 gpm

20

Condensed Q formula for 3" hose

Q squared

21

Condensed Q formula for 4" hose

Q squared / 5

22

Condensed Q formula for 5" hose

Q squared / 15

23

In a centrifugal pump, where is velocity energy converted into pressure?

Volute

24

Tank fill line requirements

Must be 1" or larger in diameter for tanks less than 1000 gallons

25

What does the tachometer display?

Engine speed in revolutions per minute

26

What does the voltmeter display?

Battery condition

27

What does the ammeter display?

Status of the vehicle's alternator and charging system

28

If 0-10 percent descrease of pumper intake pressure, how much additional water is available?

3 times

29

If 11-15 percent descrease of pumper intake pressure, how much additional water is available?

2 times

30

If 16-25 percent descrease of pumper intake pressure, how much additional water is available?

Same amount as being delivered