May 2024 Review Quiz

____ is the minimum bury depth of underground piping under railroad tracks.

• 36"

• 60"

• 30"

• 48"

____ is the minimum bury depth of underground piping underneath a driveway.

• 3 feet

• 4 feet

• 2 feet 6 inches

• 2 feet

A _____ may be attached to the pipe in particularly corrosive soil.

• thrust block

• meter

• sacrificial anode

• electrical service

Private fire service mains that supply fire protection systems within a building are permitted to

extend into the building no further than ____ft

• 10

• 12

• 5

• 6

Piping should

be positioned at a minimum depth of ___ inches below the bottom of building foundations or

footers

• 6

• 12

• 18

• 24

In the event that the

soil type is unknown, slope the soil at a maximum of ___ horizontal to 1 vertical.

• 3/4

• 1

• 1 1/4

• 1 1/2

NFPA ____ is the Standard for Water Tanks for Fire Protection

• 20

• 22

• 24

• 420

NFPA ____ is the Standard for the Installation of Private Fire Service Mains and Their Appurtenances

• 20

• 22

• 24

• 420

As long as the underground pipe is NOT on the suction side of the fire pump, the minimum flow velocity of ___ feet/second is required to flush the piping.

• 7

• 8

• 9

• 10

An underground system supplied by the municipal water system with a normal working pressure of 60 PSI is required to be hydrostatically tested at ____ PSI for 2 hours.

• 110

• 150

• 200

• 250