Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Hydraulics Manual > Other > Flashcards

Other Flashcards

1
Q

Booster reel lines are usually a ____ foot long, _____ (diameter) rubber line with what kind of nozzle?

A

150 foot
1 inch
Adjustable gallonage fog nozzle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are the uses for the decon shower?

A

Hazardous materials incidents or to decontaminate firefighting personnel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What nozzle can be used to apply water to areas that are otherwise inaccessible to water streams? Such as ____ and ____.

A

Piercing or penetrating nozzle
voids and attics

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

In what length sections does forestry hose typically come?

A

50’ and 100’ sections

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are the three different types of monitors used in Fairfax County?

A
  1. Fixed monitors- permanently attached to the pumper
  2. Portable monitor-Akron Quick-Attack Mercury Monitor
  3. Combination monitors-fixed to the pumper but can be detached and connected to a ground mount to be used as a portable.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What hose should be utilized to supply the Akron Quick-Attack mercury monitor?

A

A single 3” supply hose (2.5” may be used, though the friction loss in the line would be higher). A 4” supply hose shall not be used.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the maximum inlet pressure for the mercury monitor?

A

150 psi

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the appliance loss for the mercury monitor

A

10 psi

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

If flowing less than _____GPM appliance loss is insignificant so 0psi will be used for appliance loss.

A

350 GPM

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Flowing over 350 GPM’s appliance loss=

A

10 psi

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Appliance loss for ladder pipes, standpipes, and master streams (except the mercury monitor)

A

25 psi

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Elevation pressure:
For fire ground operations, round ______ to 5psi for every ____feet of elevation or every _________ above or below the pumper.

A

For fire ground operations, round .434 to 5 psi for every 10 feet of elevation or every floor above or below the pumper.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Maximum safe PDP? (during normal operations)

A

250 psi

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Husky Foam system is what kind of system

A

Electronic direct injection foam system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

When flowing foam with a waterous around the pump proportioner and being supplied from another source the tank fill must be kept open or closed during operation.

A

Closed to prevent the water tank from becoming contaminated with concentrate.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Waterous around the pump proportioner allows foam solution to flow which discharges?

A

All discharges

17
Q

Portable foam eductor:
Must be place how far from pump panel?
Within how many feet of the nozzle?
The nozzle can be no higher than ____ feet above eductor.

A

50 feet from pump panel
within 200 feet of the nozzle
Nozzle no higher than 5 feet above eductor

18
Q

All Fairfax County pumpers carry a minimum of _____ Gallons of foam

A

40 Gallons

19
Q

Fairfax county CAFS engines carry how much foam and water?

A

750 Gallons water
40 Gallons class A
40 Gallons class B

20
Q

CAFS for fire attack consists of _____ water and ____ air with a foam application rate of ____%

A

2/3 water and 1/3 air
rate of .3%

21
Q

CAFS for overhaul and exposure protection consists of _____ water and ____ air with a foam application rate of ____%

A

1/3 water and 2/3 air
rate of .5%

22
Q

How long can CAFS air compressors be operated for without overheating?

A

2 hours

23
Q

When using CAFS, which nozzle/tip creates the best finished product for fire attack?

A

15/16” smooth bore tip

24
Q

When using CAFS, which nozzle/tip creates the best finished product for exposure and overhaul?

A

15/16” slug or ‘gated butt’

25
Q

Pierce recommends that CAFS only be used in lines up to what length for maximum effectiveness?

A

250 feet

26
Q

Can supply pumpers gate down their discharges in normal operations?

A

They should not gate down their discharges

27
Q

In a relay, the maximum amount of water being delivered to the fire scene is limited by what two things?

A

Water source and pumping capacity of smallest pumper

28
Q

Most Fairfax pumpers are rated at what GPM and pump pressure?

A

1500 GPM at 150 PSI pump pressure

29
Q

When operating from a static water source with a 1500 GPM pumper, if the pump pressure is increased to 200psi the maximum flow decreases to _________GPM.

A

1050GPM

30
Q

Most fire hydrants in Fairfax County can deliver a minimum of _________ GPM.

A

1000 GPM

31
Q

When should sprinkler systems be charged?

A

When there is smoke or fire showing or upon confirmation of a working fire

32
Q

T or F
You should await orders before charging a combination fire protection system.

A

False
These systems should be considered as a standpipe and supplied and charged immediately upon arrival on the scene and without orders.

33
Q

T or F
Aerial devices should be provided with their own supply pumper if possible.

A

True

34
Q

What is the minimum supply line that should be used to supply the aerial device?

A

One LDH line or two 3” supply lines

35
Q

When drafting, you should position to utilize which intake?

A

Side intake

36
Q

Any time incoming pressure exceeds _____psi, the pump shall be operated in pump gear.

A

50 psi

37
Q

T or F
After a water supply has been established, the tank to pump valve shall be left open.

A

False
After a water supply has been established, the tank to pump valve shall be closed.

Hydraulics Manual (7 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions