Math

Question 1

1.75 square

Answer 1

3.0625

Question 2

1.5 square

Answer 2

2.25

Question 3

1.25 square

Answer 3

1.5625

Question 4

1.25 inch smooth bore flows?

Answer 4

328 or 325gpm

Question 5

Coefficient for 4”

Answer 5

.2

Question 6

Coefficient for 1.88 or ffx attack line

Answer 6

10

Question 7

Gpm of standard crosslay nozzles

Answer 7

175gpm at 50psi

Question 8

15/16” smooth bore flows?

Answer 8

185gpm

Question 9

1.125 or 11/8th inch smooth bore flows?

Answer 9

266 or 250gpm

Question 10

1.25 master stream smooth bore flows?

Answer 10

415 or 400gpm

Question 11

1 3/8th inch master stream smooth bore?

Answer 11

502 or 500gpm

Question 12

1.50inch smooth bore master stream flows?

Answer 12

598 or 600gpm

Question 13

1.75inch sb master stream flows?

Answer 13

813 or 800gpm

Question 14

This smooth bore master stream nozzle flows 1063 or 1000gpm?

Answer 14

2 inch

Question 15

Mercury Monitor flow and Psi

Answer 15

500gpm max flow…150psi starting pressure. 100psi fog tio, 80 psi smooth bore.

Question 16

Coefficient for 2 inch

Answer 16

2

Question 17

Coefficient for 3”

Answer 17

.8

Question 18

Appliance loss for a master stream?

Answer 18

25psi

Question 19

Add 10 psi to your friction loss calculations for flows of what gpm?

Answer 19

Over 350 gpm

Question 20

When flowing under 350gpm how much friction loss must you add for the GPM?

Answer 20

Zero

Question 21

Elevation psi at a high rise?

Answer 21

.5psi per floor above the connection

Question 22

Starting pressure for standpipe or sprinkler system?

Answer 22

150Psi

Question 23

Appliance loss for a ladder pipe?

Answer 23

25psi

Question 24

Coefficient for dual 3”lines

Answer 24

0.2

Question 25

Coefficient for one 4" and one 3" line?

Answer 25

0.09

Question 26

Coefficient for dual 4" lines?

Answer 26

0.05

Question 27

Like volumes Formula

Answer 27

Percentage Drop=(sp-rp)100/sp

Question 28

``` Percentage Drop: 0-10% 11-15% 16-25% Greater than 25% ```

Answer 28

3 times original amount 2 times 1 times No more lines

Question 29

Square root of 100

Answer 29

10

Question 30

Square root of 80

Answer 30

9

Question 31

Square root of 50

Answer 31

7

Question 32

Square root of 150

Answer 32

12