General Knowledge

Question 1

What is the friction loss of 50’ 1 3/4 at 200 GPM?

Answer 1

15 psi

Question 2

What is the friction loss of 50’ 2 1/2 at 350 GPM?

Answer 2

15 PSI

Question 3

How many PSI per floor for friction loss?

Answer 3

5 PSI per floor or 10 ft

Question 4

How to calculate friction loss for elevation without floors?

Answer 4

.5 x height in feet

Question 5

What PSI do you pump sprinklers at?

Answer 5

125 PSI

Question 6

What PSI do you pump standpipes at?

Answer 6

150 PSI in RPM mode plus 5 psi per floor not to exceed 200

Question 7

What PSI do we pump cross lays and RAM?

Answer 7

140 PSI

Question 8

When boosting what pressure do we pump at?

Answer 8

> 300’ commercial or >500’ any scene 150 PSI to 200 PSI

Question 9

What pressure for automatic nozzles?

Answer 9

100 PSI

Question 10

What pressure for chief nozzles?

Answer 10

75 PSI

Question 11

What pressure for smooth bores?

Answer 11

50 PSI

Question 12

What are the stats for the pro pack?

Answer 12

100 PSI is 12 GPM

Question 13

What is the friction loss for appliances?

Answer 13

10 PSI

Question 14

What is master stream friction loss?

Answer 14

25 PSI

Question 15

What pressure do we pump master stream fog nozzle?

Answer 15

100 PSI

Question 16

What pressure do we pump master stream smooth bore?

Answer 16

80 PSI

Question 17

What is the coefficient for 1 3/4”?

Answer 17

15.5

Question 18

What is the coefficient for 2 1/2”?

Answer 18

2

Question 19

What is the coefficient for 5”?

Answer 19

0.08

Question 20

How many guides should you use when backing an apparatus?

Answer 20

2

Question 21

What percentage do we use for AR-AFFF for hydrocarbons?

Answer 21

3%

Question 22

What percentage do we use for AR-AFFF for Polar Solvents?

Answer 22

6%

Question 23

What PSI do we need at a foam educator?

Answer 23

200 PSI

Question 24

What distances do we keep hoselines when using an educator?

Answer 24

100…no more than 200

Question 25

What nozzles can be used for foam operations?

Answer 25

selecto-matic >35 ft or vindicator <35 ft

Question 26

In a CO response, how far should you read meter from a CO appliance?

Answer 26

5 feet

Question 27

At what reading should you inform occupants there's no threat of CO?

Answer 27

<9 ppm

Question 28

At what reading should premises be vacated and gas company called?

Answer 28

>9 ppm but <70 ppm

Question 29

At what CO ppm will firefighters wear scab's to enter space?

Answer 29

50 ppm and greater

Question 30

What happens at 70 ppm CO?

Answer 30

occupants must be evaluated by EMS

Question 31

What are two things all CO runs must have before clearing?

Answer 31

carbon monoxide detector activation & checklist for carbon form completed

Question 32

During a natural gas leak what's the initial staging distance?

Answer 32

330' from address

Question 33

At what LEL is entry contraindicated on a gas call?

Answer 33

10% lel

Question 34

When reporting a gas call involving an excavator what is needed info?

Answer 34

Buds#, name, and company info

Question 35

What are the specs of FFD crosslays?

Answer 35

200' of 1 3/4" with chief nozzle pumped at 200gpm @ 75 psi

Question 36

What is the total length allowed for 1 3/4?

Answer 36

250' NFPA

Question 37

If a chief nozzle is broken down to 1" tip what is the flow?

Answer 37

212gpm @ 50 psi vs 200gpm @ 75 psi

Question 38

On E3 and E4 what lines can flow Class A foam?

Answer 38

two crossways and the bumper line

Question 39

What percentage is onboard Class A foam used per SOP?

Answer 39

.5% to 1%

Question 40

How would you describe the bumper line at FFD?

Answer 40

100' 1 3/4 with select o matic

Question 41

At 140 psi pump pressure what GPM does the Selecto matic operate at?

Answer 41

200 GPM at 100 PSI

Question 42

What configuration is the RAM loaded in?

Answer 42

200' of 2 1/2" flowing @ 500 gpm at 75 PSI

Question 43

What are the optimal pressures for the deck gun?

Answer 43

80 psi stacked tips or 100 psi combination nozzle. Both are around 1000 gpm

Question 44

What does the 2 1/2" on A1 or E2 get pumped at?

Answer 44

100 PSI-110 PSI

Question 45

What PSI should the intake never drop below while supplying water?

Answer 45

20 PSI

Question 46

What is the optimal pressure for the propak?

Answer 46

100 psi at 12 GPM

Question 47

What is the PDP when pumping a yard lay with one or two landlines and smoothbores?

Answer 47

110 PSI

Question 48

What is the PDP if operating a Yardlay with the 1 3/4" crosslay and chief nozzle?

Answer 48

140 PSI +15 PSI for 200' 2 1/2" so -155 PSI.