Flashcards Engineer ADO-P

Hydraulic calculators are used to measure

pump discharge pressure

in water shuttle operations, what should occur to ensure proper dumping operations?

adequate venting

the___ hydrant allows for more access to Natural Supply Source through a pre-piped insulation

dry hydrant

load shedding can sometimes be confused with

electronic failure

The effect a bypass proportioner has on an eductor is

Reduce friction loss across the eductor

in water shuttle operations positioning at the fill site must allow for drafting or a hydrant connection which if possible can fill tenders at a rate of

1,000 gpm

In a portable tank operation the dump site pumper should utilize which of the following to allow for continuous drafting to a point of about 2 in

low level strainer

An___ Is a pre-pumped and permanently attached to an aerial ladder platform or other device

elevated master stream

for a standpipe system do not use pump discharge pressure in excess of___ unless the standpipe system hose and Appliance have been designed to function under high pressure

185psi

The application of class a phone from a compressed air foam system should not be limited to___ nozzles

Smooth Bore nozzles

which stability control system includes a steering wheel sensor in addition to a lateral accelerometer

Electronic stability control

One of the most common types of insulated proportioners used in modern fire apparatus is the___ proportioner

around- the- pump

during drafting operations the inertia of water is the additional factor in

friction loss

homebuilt apparatus or more likely to have design problems such as

usually operating over the GVW and our top heavy

The valve that opens to allow overheated water to circulate between the centrifugal pump and the main water tank or into the atmosphere is the

thermal relief valve

on the fire ground if there is any option as to the correct position for the transfer valve is it best to operate in

volume or RPM

when making the connection between the hydrant and the Pumper a clockwise twist in the hose

May reduce Kinks

When unloading fire hose while driving the apparatus Drive the apparatus only in a forward Direction at a speed no greater than

5 mph

the formula for calculating lift(L=1.13 Hg) the Hg Represents

millimeters of mercury

on a highway / roadway incident if possible always Mount and Dismount the apparatus on the

side of the vehicle opposite to oncoming traffic

diesel exhaust fluid is injected into the exhaust gas in order to reduce what kind of emissions from diesel engines

nitrogen oxide

which of the following is one of the most common types of installed proportioners used in modern Fire Apparatus

around the pump

the Society of Automotive engineers numbers for engine oil indicate

the viscosity

a tank to pump flow test must be conducted on any apparatus with

an onboard water tank

riding on the outside of a Wildland vehicle is

dangerous and not recommended by IFSTAIt is also prohibited in NFPA 1500

Self inducting master stream foam nozzles are deployed when the needed fire flow is in excess of

350 GPM

when wearing your PPE wath may occur at compression points where the Garment layers are pressed together such as the SCBA shoulder straps

Thermal Burns

which nozzle type typically have expansion ratios in the 2:1 to 4:1 Range to be used most efficiently with regular AFFF and class a foam

Fog nozzles

When a large volume of water is needed the fire department should request that the water utility department do what

increase the pressure to that area

use of apparatus warning devices should not be limited to respond to

true emergencies

The apparatus inspection procedure used by the driver/operator is best characterized by which of the following words

walk around

impeller,eye and Volute Are all parts of

centrifugal pump

the formula [ Flow = (0.9xTS/Trip Time] is used to

determine water shuttle flow rate

Which of the following is attached to the section of hard intake hose and is used to move water from one take to another

jet siphon

which of the following formulas maybe used to achieve the approximate solid stream nozzle reaction on the fire ground

NR=1.75xD^2xNP

The driver/operator should stop the apparatus either a few feet short or a few feet beyond the hydrant

True to allow the intake hose to curve

an average variable flow Demand type balanced pressure proportioning system is the

flow of the concentrate matches the pressure demand

to prevent apparatus engine damage limit downhill speed

to lower than the maximum rpm

a pump and roll system is an advantage

when combining Wild Land fires

In a portable water tank operation once the first tender delivers its water the dump site

Pumper begins to draft

reducers, gates, wyes, and manifolds are an example of

appliances

Which of the following are extremely effective in attacking Wildland fires and protecting exposures

Wildland apparatus equipped with CAFS system

fill site Pumpers and dump site Pumpers are essential features of

water shuttle operations

Which of the following turns on various lights At specific intervals so that the startup electrical load for all the devices does not occur at the same time

load sequencer

which of the following phones is formulated to be proportioned within the ranges from a 0.1% to 1%

class a foam

primary feeders, secondary feeders, and Distributors are all part of a

water grid system

which of the following is the optimum arrangement for a water shuttle circuit

A circular route

driving too fast for road conditions failing to anticipate obstacles and improper use of exhilary breaking devices are common driving errors

True

for multi-stage centrifugal pumps pumping in a series for the purpose of

results in a much higher pressure than it would in parallel position

The NFPA specifies that all gauges used for service testing must be calibrated within how many days of testing

within 60 days

when lifting a tilt cab be sure that

there is adequate vertical clearance

local taxpayers have a significant capital investment in a piece of Fire apparatus and they expect the vehicles to be

well cared for and maintained

In what circumference does the Regeneration inhibit switch keep the engine from initiating an active regeneration process

when the apparatus is parked over any dried grass or other combustibles

which of the following features makes the rotary vein pump much more efficient at pumping air than a rotary gear pump

they are self-adjusting

based NFPA 1911 How often must a pumping apparatus be performance tested

once a year

when operating power tools apparatus pumps and a pass device test you should wear

hearing protection

which of the following may be used in a mount on the apparatus or removed and used remotely from the vehicle

calibration monitor

local policies, the company officer, and who else will best determine placement for the first arriving Pumpers on the fire ground

driver/operator

which of the following can facilitate the changeover from tank Supply to a supply line without interrupting the fire streams

bleeder valve

direct pumping, gravity, and combination are the three

means of moving water in a system

which of the following is defined as Force per unit area

pressure

Which of the following will ensure that each driver / operator conducts a uniform and complete apparatus inspection

inspection checklist

water pressure may be produced by an elevated water supply, atmospheric pressure, or a pump but if it's not moving it is known as

static pressure

which of the following is the most direct method of supplementing hydrant pressure or performing draft operations

reverse lay

if the driver/operator on an aerial apparatus with the dcdl locked here's tires scrubbing the driver operator should

disengage the dcdl

in relay pumping operations a dump line is used by the relay pumper to

used to handle excess water