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IFSTA Exam Prep > Ch 15. Apparatus Testing > Flashcards

Ch 15. Apparatus Testing Flashcards

1
Q

Two basic categories of new apparatus testing are _______ and ________.

A

Pre-service and performance tests

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2
Q

What catagory of apparatus testing includes manufactures tests, pump certification test, and acceptance tests.

A

Pre-service testing

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3
Q

How often is performance testing of apparatus conducted?

A

On an annual basis and after major repairs during the service life of an apparatus

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4
Q

What are the three most common NFPA standards used for Apparatus bid specifications?

A

NFPA 1901 standard for automotive fire apparatus,
NFPA 1906 standard for wildland fire apparatus,
NFPA for 414 standard for aircraft rescue in fire fighting vehicles

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5
Q

Per NFPA 1901 how should a road test for New Apparatus be conducted?

A

The road test is to be conducted with the vehicle loaded to the same weight as it will be when placed in service

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6
Q

What are the new apparatus standards for acceleration during the road test?

A

The apparatus must accelerate to 35 mph from a standing start within 25 seconds

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7
Q

During the new apparatus road test, what is the maximum TopSpeed the Apparatus must achieve?

A

50 mph

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8
Q

During the new apparatus testing, how quickly must an apparatus come to a full stop?

A

The Apparatus must come to a complete stop from 20 mph within 35 feet

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9
Q

During new apparatus testing the pump body as well as the entire intake and discharge piping system, with the exception of the fill tank in tank to pump lines on the tank side of the valves, are subjected to what minimum hydrostatic test pressures?

A

A minimum of 500 psi for a minimum of 10 minutes

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10
Q

Certification for pump testing must be conducted for apparatus equipped with fire pumps in what range of GPMs?

A

Per 1901 all apparatus equipped with fire pumps 750 GPM up to 3000 GPM must meet pump test certification

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11
Q

Pump certification tests are performed by an independent testing organization such as:

A

Underwriters laboratories

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12
Q

When must acceptance testing be conducted to demonstrate to the purchaser that the apparatus performs to all bid specs?

A

At the time of delivery. Testing should be conducted with a representative from the purchasing agency. 

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13
Q

At what distance above sea level should a jurisdiction perform pumping engine overload tests as part of acceptance testing?

A

2000 feet

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14
Q

When conducting performance testing in a static water supply, at what level should be submerged strainer be positioned.

A

The water source must be at least 4 feet deep in the strainer must be submerged at least 2 feet deep

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15
Q

What is the minimum diameter hose line to be used when pump testing?

A

The minimum diameter hose line for this purpose is 2 1/2 inch hose

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16
Q

What is net pump discharge pressure?

A

Net pump discharge pressure is the difference between the intake pressure and the discharge pressure

17
Q

When pressure testing hose, a line should be scribed around the hose at the coupling. What is the maximum amount of movement that this hose may have at this coupling mark before it should be taking out of service?

A

3/8 of an inch

18
Q

When testing apparatus a flow meter which indicates flow in gallons per minute should be used to determine flow from Nozzles. What is the percentage of accuracy for these flowmeters?

A

+ or -5%

19
Q

Engine speed checks should be conducted under no load conditions after ensuring all fluid levels are within manufactures recommendations. What is the acceptable variation in rpm range?

A

+/- 50 rpm

20
Q

When testing a new apparatus a vacuum test evaluates the priming device, pump, and intake hose for air leaks. How many inches of mercury are required to be achieved for this pump test?

A

22 inches of mercury

21
Q

When performing a priming test, a new apparatus must be able to achieve a prime in discharge water at what GPM and over what time frames?

A

1250 gpm pump = 30 seconds or less

1500 gpm pump = 45 seconds or less

22
Q

We’re using a Pitot gauge to determine flow from a stream, how should the pitot gauge be positioned?

A

The pitot gauge should be positioned in the center of the stream, one half the nozzle diameter from the end of the nozzle.

23
Q

When testing discharge pressure gauge in flow meters for new apparatus testing, what is the maximum difference in readings allowable between the flow meter and the pitot gauge?

A

No more than 10%

24
Q

When performing a tank to pump flow test a new apparatus, what must the capable flow rates be for apparatus with 500 gallon tanks or less and for apparatus with 500 gallons or greater?

A

500 gallons or less = 250 gpm tank to pump flow

500 gallons or more = 500 gpm tank to flow

25
Q

On new apparatus, how should an internal intake pressure relief valve test be performed?

A

A discharge hose line from a second pumper is connected to the intake of the apparatus being tested. Pressure is increased until the internal relief valve opens.

26
Q

What percentage of its original capacities must and new apparatus meet during new testing?

A

90%

27
Q

How often are foam proportioning tests to be completed on apparatus per NFPA 1901?

A

NFPA does not require an annual test, and tests may be verified periodically during the service life of the Apparatus.

28
Q

What is a refractometer used for?

A

A refractometer is a device used to measure the amount of foam concentrate in a solution

29
Q

Why is hydrostatic testing performed a new Apparatus?

A

To ensure that the pump in associated piping are capable of withstanding high-pressure pumping demands.

30
Q

During pump certification testing, which additional test must be conducted for apparatus equipped with onboard water tanks?

A

Tank to pump flow test

31
Q

Why might a jurisdiction prefer to use a static water supply instead of a hydrant during pump performance tests?

A

It provides easier evaluation for pump performance

32
Q

When conducted pumper performance testing, the water temperature should be between what range?

A

The water should be between 35°F and 90°F

33
Q

Per NFPA 1911 all gauges used for service testing must be calibrated within how many days?

A

Within 60 days of testing

34
Q

Which method for testing a foam proportioner is often used by certain direct injection type proportioner’s?

A

Foam concentrate pump discharge volume method

35
Q

What does foam solution conductivity testing measure?

A

The quality of synthetic foam

36
Q

Why is the foam solution conductivity test used rather than the refractivity test to check the quality of synthetic based foam?

A

Synthetic foam is too light in color

IFSTA Exam Prep (20 decks)

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