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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
ID
351519
Card Set
Hydraulics
Description
Updated
2020-06-03T18:34:37Z
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