Pumping and aerial apparatus pt 3

Centrifugal pumps are designed to pump their rated capacity at draft at ? Psi

It is advisable for drivers to maintain an intake pressure of ?-? Psi as a relay pumper

In accordance with NFPA 1901 water tenders must be able to be filled at a rate of atleast ? Gpm

Tenders featuring pumps of ? Gpm or more are often called pumper/tenders

The ?? Method is considered to be the simplest and quickest method to ensure a constant water supply for fire attack ops

NFPA 1901 requires all tenders to have the capability to dump at a minimum flow rate of ? Gpm for the first ?% of its capacity

One porta tank may be sufficient for operations requiring low flow rates (less than ? Gpm)

Any portable tank should have a capacity ? Gallons larger than the tank on the apparatus supplying it.

? Foams are the most common type foams in use

Class b fuels are divided into what two categories?

Most fire fighting foam concentrates are formulated to mix with ?-?% water

Class a foams are to be mixed in smaller proportions from ?-?%

4 basic methods for foam proportioning

Foam concentrate tanks on apparatus may range from ?-? Gallons

Volume of totes

Common guidelines for proportioning foam:
Fire attack and overhaul with standard fog nozzle

Common guidelines for proportioning foam:
Exposure protection with standard fog nozzle

Common guidelines for proportioning foam:
Any application with air aspirating foam nozzles

Common guidelines for proportioning foam:
Any application with CAFS

Class b foams are mixed in proportions from ?-?%

Concentration of class b foam to be used on hydrocarbon fuels ?-?%. Whereas concentration on polar solvents ?-?%

NFPA 11 states the ratios for:
low expansion foam ?:?
Medium expansion foam ?:? Up to ?:?
High expansion foam?:?-?:?

When using a foam educator the pressure at the discharge side must not exceed ?% of the inlet pressure

The foam concentrates inlet to the exit or should be no more than ? Feet above the liquid surface of foam concentrate.

Fog nozzles are not an acceptable choice for delivery of ? Foams on fires involving polar solvents.

The only nozzles that should be used with protein and fluoroprotein foam concentrates

Standard on foam chemicals for fire in class a fuels

NFPA 1901 road test:
apparatus must accelerate to a speed of ? Mph from a standing start within ? Seconds.
Apparatus must achieve a top speed of ? Mph
Apparatus must come to a full stop from ? Mph within ? Seconds

NFPA 1901 hydrostatic test: all intakes and discharges as well as pump body are subjected to a minimum test pressure of ? Psi for at least ? Minutes

As required by NFPA 1911 pumps should undergo performance testing how often?

When testing hose scribe marks indicating the hose pulling away from the coupling more than ?” Should be replaced

NFPA 1911 specifies that all gauges used for service testing must be calibrated within ? Days of testing

NFPA 1911 engine speed check: the engine should be running within plus or minus ? Rpm from when it was new

NFPA 1911 vacuum test: if the pump fails to reach ?” Mercury remove apparatus from service for repairs

Per NFPA 1911, fire pumps with 1,250 gpm capacity must achieve prime within ? Seconds, for pumps with 1,500 gpm capacity prime time is within ? Seconds. Pumps exceeding 1,500 gpm have no required time

When testing flow meters a pitot gauge is used and readings must be within ?% of eachother

Device used to measure the amount of foam concentrate in the solution

NFPA 1901 groups aerial device in 3 categories:

Aerial ladders designed with “?-?” Provide greater strength than those with older designs

4 main components of a hydraulic system:

Hydraulic hoses must be rated to withstand pressures at least ? Times greater than normal operating pressures

In a hydraulic cylinder the pivoting end of the piston rod that is connected to the anchor ear by a heel pin.

Normal hydraulic pressure is from ?-?psi

In aerial ladders in North America the fully extended working length ranges from ?-?’

IFSTA divined the NFPA classification of “elevating platform apparatus” into 3 distinct types of aerial devices:

Required minimum floor area for a platform

Platforms must have a rail completely enclosing the floor area with no opening under the railing greater than ?”

A kick plate required around the turntable must be ?”

NFPA 1901 requires the curtain nozzle on platforms to flow at a rate of ?

All elevating platforms must have a minimum load capacity of ? Lbs dry and ? Lbs wet

Water delivery systems in aerials must be capable of at least ? Gpm at ? Psi

Elevating platforms at 110’ or shorter must be raised extended fully and rotate 90 degrees in ? Seconds or less

Aerial ladder platforms commonly range from ?-? Feet

Common sizes of telescoping aerial platforms in North America

A mechanically applied rivet used in construction of some aerial devices

Standard articulating aerial platforms range from ?-?’

Aerial devices that both telescope and articulate range in height from ?-?’ With max flows ranging from ?-? Gpm

Generally the internal diameter of telescoping waterways is ?

Most ladders with detachable waterways limit the sideways movement of the nozzle to ? Degrees either direction of center for a max operating range of ?

Standard on breathing air quality for emergency services respiratory protection

Common recommended length of power cords should not exceed ? Feet per real or cord

Hose distances ? Feet or greater from the hydraulic pump may have negative effects on tool operation

Extension ladder reaching 40’ or more

Another term for hydraulic door openers

NFPA 1901 requires aerial apparatus to be equipped with multiple salvage covers and a minimum of ? Scoop shovels

Service tests are conducted at least ? While in service and nondestructive testing is conducted every ? Years