Hydraulics

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When converting liquid to steam how many times does it expand

1700 times
Specific heat of water

One BTU to raise temperature of 1 pound of water 1°F
One cubic inch of Mercury weighs

0.491
Mercury is how many times heavier than water

13.61
What is the best pressure for a sprinkler head

20 PSI
What is the best role of them for GPM for a sprinkler head

25 GPM
Sprinkler heads should cover how many square feet

80 to 100
How do you determine discharge in GPM for my sprinkler head

Gpm= 1/2 pressure + 15
Do not pump over what psi at stand pipe connection unless it states otherwise

200 psi
Water weighs how much psi per ft head

.434
It takes how many foot head of water to exert a pressure of one PSI

2.31
Atmospheric pressure is what at sea level

14.7
1 gallon of water weighs

8.33 pounds
1 gallon of water contains how many cubic inches

231
One square foot equals how many square inches of water

144 square inches
One cubic foot equals how many cubic inches of water

1728 cubic inches
How many gallons of water are in one cubic foot

7.5
How much does one cubic foot of water weigh

62.4 pounds
What does it take to compress water 1%

30,000 PSI
Water will absorb heat how many times more than any other cooling agent

10 times
What is friction loss per story

5 psi
What role is used to store 1 1/2 to 2 1/2 inch firehose

Straight roll
What is a donut roll used for

Filler hose 5 inch was stored in compartments and crash back
What do you wash mask with

Warm soap solution rinse with water
What do you disinfect mask with

70% solution of Ethel methyl isopropyl alcoholOr some merge in a solution of 2 tablespoons of chlorine bleach to 1 gallon of water
SCba alarms when air is how low

20 to 25%
Friction loss formula

Coefficient (GPM/100)squared x length of hose in 100ft sections
1 1/2 coefficient

24
1 3/4 coefficient

15.5
2/12 coefficient

2
5 coefficient

.08
Volume of firehose
- Make sure everythings in inches
- Pi R squared H divided by 231
Foam eductor friction loss

75psi
Sprinkler head gpm

1/2 pressure + 15
Rule of thumb for sprinkler head

25 gpm per sprinkler head
What is considered good sprinkler head pressure

20 psi
1 2 1/2 hose line will supply how many sprinkler heads

10
What is the perfect vacuum for a draft

33.957 feet
What is the preferred hose length and nozzle GPM for a foam educator

150ft 60 gpm
What is a disadvantage of around the pump foam applicator

If the intake pressure is greater than 10 psi the foam cannot enter the system
How big is the tank to pump valve

3 in
How big is the tank fill valve

1 1/2 in
How big is recirculating line

3/8 in
How big is the engine cooler line

1/2 in
Volume of water in a rectangular box

L x w x h x 7.5
How many gallons of water it will take to fill a room with steam

L x w x h x 7.5 \ 1700
How many pounds of water it will take to fill room with steam

L x w x h x 7.5 / 1700 x 8.33
How many cubic feet of water it will take to fill a room with steam
- Make sure everything is in ft or inches
- L x w x h x 7.5 \ 1700 \ 7.5
What is the GPM for a 1 1/4 straight tip flowing 50 pounds

328
What is the GPM discharge for a 1 inch straight tip flowing 50 pounds

210
What is the GPM discharge for a 2 1/2 inch fog nozzle

300
What is the GPM discharge for a 1 3/4 fog nozzle

180
Add how many Psi for every 250 GPM flowing through device

5 psi
Rising 1 pound of water from 32° to 212° requires how many btu

180 btu
When folding a salvage cover the side in contact with the floor is called what

The clean side
I’m folding a salvage cover the side facing up is called what

Dirty side
What type of salvage roll do we do

One fire fighter salvage roll (modified)

Author

jr_schreiber

351519

Card Set

Hydraulics

Description

Updated

2020-06-03T18:34:37Z

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