IFSTA Book

Question 1

5 things that make a quint a quint

Answer 1

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

Question 2

Steering wheel play should be no more than _____

Answer 2

10 degrees in either direction

Question 3

DPF

Answer 3

Diesel Particulate Filter

Question 4

What does DPF do?

Answer 4

Traps much of the particulate matter in exhaust emissions

Question 5

DEF

Answer 5

Diesel Exhaust Fluid

Question 6

What does DEF do?

Answer 6

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

Question 7

HEST

Answer 7

High Exhaust System Temperature

Question 8

Inside/Outside method of apparatus placement

Answer 8

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.

Question 9

Water expands _______ when converted to steam.

Answer 9

1700 times.

Question 10

PIV

Answer 10

Post Indicator Valve

Question 11

What does a PIV do?

Answer 11

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

Question 12

OS and Y Valve

Answer 12

Outside Screw & Yoke Valve

Question 13

What does an OS and Y valve do?

Answer 13

Control valve for a sprinkler system

Question 14

Equation for flow from a solid stream nozzle

Answer 14

GPM = 29.7 x D squared x square root of NP

Question 15

Equation for nozzle reaction for solid stream nozzle

Answer 15

NR = 1.57 x D squared x NP

Question 16

Equation for nozzle reaction for fog stream nozzle

Answer 16

NR = 0.0505 x Q x square root of NP

Question 17

Field equation for nozzle reaction from a solid stream nozzle

Answer 17

NR = Q/3

Question 18

Field equation for nozzle reaction from a fog stream nozzle

Answer 18

NR = Q/2

Question 19

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

Answer 19

350 gpm

Question 20

Condensed Q formula for 3” hose

Answer 20

Q squared

Question 21

Condensed Q formula for 4” hose

Answer 21

Q squared / 5

Question 22

Condensed Q formula for 5” hose

Answer 22

Q squared / 15

Question 23

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

Answer 23

Volute

Question 24

Tank fill line requirements

Answer 24

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

Question 25

What does the tachometer display?

Answer 25

Engine speed in revolutions per minute

Question 26

What does the voltmeter display?

Answer 26

Battery condition

Question 27

What does the ammeter display?

Answer 27

Status of the vehicle's alternator and charging system

Question 28

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

Answer 28

3 times

Question 29

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

Answer 29

2 times

Question 30

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

Answer 30

Same amount as being delivered

Question 31

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

Answer 31

More water might be available, but not as much as is being delivered

Question 32

All fire pumps meeting NFPA and UL requirements are rated to pump their capacity at ______

Answer 32

10 feet

Question 33

A pumper in good working order can lift water a maximum of ______

Answer 33

25 feet

Question 34

If no information is available, the general guideline is to discharge ______ into the FDC

Answer 34

150 psi

Question 35

Equation for number of pumpers needed in a relay pumping operation

Answer 35

Pumpers = Relay distance / max distance between pumpers + 1

Question 36

Equation for water shuttle flow rate

Answer 36

Flow = 0.9 x Tank Size / Trip Time

Question 37

What is the hydrostatic test pressure of the pump body, intake, and discharge piping system?

Answer 37

500 psi for 10 minutes

Question 38

NFPA Standard for Automotive Fire Apparatus

Answer 38

NFPA 1901

Question 39

NFPA Standard for Fire Apparatus Driver/Operator Professional Qualification

Answer 39

NFPA 1002

Question 40

NFPA Standard for Emergency Vehicle Technician Professional Qualifications

Answer 40

NFPA 1071

Question 41

NFPA Standard for the Inspection, Maintenance, Testing, and Retirement of In-Service Automotive Fire Apparatus

Answer 41

NFPA 1911

Question 42

NFPA Standard for Fire Service Vehicle Operations Training Program

Answer 42

NFPA 1451

Question 43

Maximum distance between pumpers to be considered tandem pumping

Answer 43

300 feet

Question 44

What is the "squaring the lines" method used for?

Answer 44

To determine hydrant water available

Question 45

What is the "GPM flowing" method used for?

Answer 45

Friction loss calculations

Question 46

Preferred engine speed for priming.

Answer 46

1000-1200 rpm

Question 47

Positive displacement primers

Answer 47

Used by most modern pumpers. Small versions of the rotary vane and rotary gear type are commonly used.

Question 48

Exhaust primers

Answer 48

Found on older apparatus, uses vehicle exhaust gases, requires lots of maintenance

Question 49

Vacuum primers

Answer 49

Used by gasoline-driven engines, so these are rare

Question 50

Air primers

Answer 50

Gaining popularity, uses the air compressor to create a venturi effect that primes the pump

Question 51

Per NFPA 1901 tenders must fill at a rate of

Answer 51

1000 gpm

Question 52

Minimum rating for a tender pump

Answer 52

750 gpm

Question 53

Conservative aspect of 10-15-25 rule

Answer 53

0-10: 3x amount, 11-15: 2x amount, 16-25: 1x amount