Ch.8 Water Systems

Question 1

There are 4 types of standpipe system;

Answer 1

1. Class 1 (dry)
2. Class 2 (wet)
3. Class 3 combination
4. Combined

Question 2

Prior to 1960 there was a height limit on buildings of _____ or approx. ___ stories.

Answer 2

150’ ; 13 stories

Question 3

Firefighting water systems in pre 1960 buildings consisted of ; x3

Answer 3

1. Dry standpipes
2. Interior wet standpipes
3. Sprinklered basements *if used for storage

Question 4

Class 1 standpipe has ___ gpm minimum

Answer 4

500gpm

Question 5

Class 1 standpipes have sufficient risers to cover any portion of building with ___ ft stream from ___ ft of hose.

Answer 5

30’ ; 100’

Question 6

Amount of dry stand pipe inlets;

Answer 6

2- 2 1/2 for 4 to 5 stories

4 - 2 1/2 for 6 stories

Question 7

Dry standpipe risers are, depending on building height, ___ to ___ in. Diameter pipe.

Answer 7

4 to 6”

Question 8

Wet standpipe system are required in buildings ___ or more stories in height ( ____ or more stories built after ______)

Answer 8

3

4;1983

Question 9

Buildings built after 1960 that exceed 150’ are required to have _____ systems

Answer 9

Combination standpipe systems

Question 10

High rise water systems (1960 to 1974)—over 150’

2 1/2” outlets in stair-shaft with orifice plates. Some have____ft of 2 1/2” hose with ____ in. Tip . ___ floor and above

Answer 10

100’; 1” ; 5th

Question 11

High rise water systems (1960 to 1974)—over 150’

Fire pumps;
Diesel or electric pump w/ ____ to maintain static pressure

Answer 11

Jockey pump

Question 12

High rise water systems (1960 to 1974)—over 150’

Inlets;
____to ____ 2 1/2” inlets, supply ____ gpm

Answer 12

4-6inlets; supply 1000gpm

Question 13

Combination standpipe risers are ___ “ and must flow ___ gpm per riser

Answer 13

6”; 1000gpm

Question 14

High rise water systems (1960 to 1974)—over 150’

They will have 4 inlets at the fdc; ___ gpm per inlet. Or ___ or more standpipe risers , six inlets.

Answer 14

250gpm inlet; 3 or more risers

Question 15

High rise water systems (1960 to 1974)—over 150’

A flow of ___ gpm is required at each 2 1/2” outlet

Answer 15

300

Question 16

Office plates are calibrated to supply ____ gpm at ___ psi through 100’ of 2 1/2” hose with 1” tip

Answer 16

200gpm at 45psi= orifice plates

Question 17

The current definition of a high rise building is any building over ___ ft. Measuring from the lowest level of FD access to the_____

Answer 17

floor of the top floor level designed for occupant use.

Question 18

Buildings built after 1974 exceeding 150’ in height will have a ___ system

Answer 18

Combined sprinkler standpipe system

Question 19

. For economic reasons (to use smaller piping), the water supply for each floor may come from a Looped System (except ____ to ____)

Answer 19

1983 to 1988 = no loop

Question 20

Pressure regulating devices are required to be used on any standpipe outlet where the static pressure exceeds ____ psi

Answer 20

150psi

Question 21

Every building ____ or more stories in height shall be provided with not less than one standpipe for use during construction.

Such standpipe shall be installed when the progress of construction is not more than____’ in height above grade

Answer 21

6;50’

Question 22

. The purpose of the test valves is to permit a periodic test of the building fire pump which is required to pump ____% of its rated capacity.

Answer 22

150%

Question 23

Since 1974 , buildings over 275’ are required to have ___ fire pumps.

___ electric and ___ diesel

Answer 23

3 pumps; 1 electric and 2 diesel