15 - IFSTA Chapter 15 Flashcards
Within the two basic categories of apparatus testing, driver operators are mostly involved with?
Performance
If NFPA 1901 is being used for manufacturer specifications, choose the three required tests prior to delivery of apparatus:
Pump certification, road, hydrostatic
The road test for apparatus requires a top speed of at least 50mph as well as:
Acceleration from start to 35mph within 25 seconds
And
Come to a full stop from 20 mph within 35 feet
-During the hydrostatic test, the pump and associated piping should be able to withstand:
500 psi / 10 mins
Performance testing covered under NFPA 1911, requires fire pumps to be tested at least once a year as well as:
Completion of major pump or powertrain repair
According to NFPA 1911, while undergoing performance testing using a hydrant or static water source, choose the answer that is NOT included
A static water source is the only acceptable source for testing
During hose testing a scribe mark should be made next to the coupling on the hose, what is the max acceptable distance the hose can pull away before the test must be stopped.
3/8 inch
Performance test service gauges must be calibrated how often:
Within 60 days of the testing
During service testing, safety measures should include all of the following EXCEPT:
Utilizing 4 persons or greater
After conducting an engine speed check, it is determined that the tested speed is 35 rpm lower than the rated speed when the apparatus was new, this indicates:
The variant is within normal limits
When conducting performance testing, which test do many fire departments conduct first:
Vacuum test
NFPA 1911 states fire pumps of 1250 gpm and 1500 gpm must achieve prime within which time frames:
30 sec / 45 sec
Pumpers with a tank capacity of greater than 500 gallons must flow at least 500 gpm, this is determined during the:
Tank-to-Pump Flow test
All of the following are problematic issues during service testing EXCEPT:
Lift higher than 15 feet
Foam Proportioning Equipment Testing is generally done by one of two methods
Testing the rate which foam concentrate is consumed in ratio to water flow
Or
Testing the foam-to-water concentration produced by the system
A refractometer is used in which aspect of testing:
Foam Solution Testing
An Engine Speed Check should be done:
Under no-load conditions
When testing the Discharge pressure gauge and flow meter during the operational tests, the Flowmeter cannot be more than ____ off of the pitot gauge.
10%
During the Internal Intake Pressure Relief Valve Test all of the following are true EXCEPT:
A second pumper is not required
When using a pitot gauge, if the gauge is too close to the nozzle a higher reading will result, what is the correct distance from the nozzle:
1/2 nozzle diameter
What are the two basic categories of testing grouped as?
Preservice and performance
What are the two specific tests that the manufacturer is required to perform in addition to the pump certification tests?
The road test and the hydrostatic test
The engine speed interlock test is part of which test?
Pump certification test
If the apparatus fails to perform to the requirements outlined in the bid specifications, what should take place?
It should be rejected by the purchaser
When should a pumping engine overload test be performed?
In jurisdictions that are higher than 2,000 feet above sea level
NFPA 1911 specifies that all gauges used for service testing must be calibrated within how many days of testing?
60 days
How does a flowmeter which indicates flow in gallons per minute, within plus of minus three percent of accuracy measure up to a pitot gauge when determining flow from nozzles during a pump test?
Flowmeter offers increased efficiency
When considering saftey during service testing, why is it important to operate the engine throttle slowly?
Sudden pressure changes may damage equiment or injure personnel
While performing fire pump service testing safely, it is important for personnel to monitor the air for the presence of what?
Carbon monoxide
After ensuring that all fluid levels are within manufacturer’s recommendations, engine speed check should be conducted under what conditions?
No-load conditions
Engine speed may be determined by what?
The engine tachometer
When performing the vacuum test, if the pump fails to reach 22 inches of mercury, what should be done?
Remove the apparatus from service until repairs can be made
According to NFPA 1911, fire pumps of 1,250 gpm capacity must achieve prime in how many seconds?
30 seconds or less
What does the pumping test evaluate?
The overall operation of the engine and fire pump
The pressure control test is performed in a how many part sequence?
Three part sequence
When performing the discharge pressure gauge and flowmeter operational tests, the difference in readings between the flowmeter and pitot gauge must not be more than how much percent?
Ten percent
Pumpers with a capacity of greater than 500 gallons must be capable of flowing at least how many gpm?
500 gpm
What does the foam concentrate displacement method check the foam system for?
It checks the volume of foam concentrate that is drawn through the system to determine the accuracy of the proportioning equipment
What does the foam concentrate pump discharge volume method check the foam system for?
It checks the volume of foam concentrate that is proportioned into a fire stream
What does the foam solution conductivity test check the foam system for?
It ensures the quality of synthetic based foam produced by various foam proportioning systems and equipment
All of the following are types of testing for pumper apparatius to undergo before being placed in service except what?
Performance test
What is a preservice apparatus maneuverabilty test designed to determine the road-worthiness of a new vehicle called?
Road test
Apparatus must accelerate to 35 MPH from a standing start within how many seconds?
25
What testing method uses water under pressure to check the intefrity of pressure vessels?
Hydrostatic test
What is the procedure used to determine the rate of water flow available for fire fighting at various points within the distribution system called?
Fire flow test
Acceptance testing is done where?
At the jurisdiction to which the apparatus has been sold to
NFPA 1901 requires certification tests be conducted for apparatus equiped with a fire pump at a miminum of how many GPM?
750
A pumping engine overload test should be performed as part of acceptance testing for jurisdictions that are higher then how many feet above sea level?
2,000
The water level of a static source for pumper performance testing is at least how many feet deep?
4
During hose testing if the scribe mark is found to have moved more than what distance from the coupling should the hose be taken out of service?
3/8”
To perform fire pump service testing safely, personnel should wear protective head gear, eyeware, gloves and hearing protection if noise levels have the potential to reach or exceed how many decibels?
90
An engine speed check should be conducted under what type of conditions?
No-load
What type of test evaluates the priming device, pump, and intake hose for air leaks?
Vacuum test
When preparing the intake hose for drafting the strainer must be a minimum of how far below the surface of the water?
24 inches
NFPA 1901 states that fire pumps of 1,250 GPM capacity must achieve prime how quickly?
30 seconds
Pumpers with an onboard tank capacity of 500 gallons or less must be capable of flowing how many GPM from their onboard tank?
250 GPM
What method checks the volume of foam concentrate that is drawn through the system to determine the accuracy of the proportioning equipment?
Foam concentrate displacement method
What test ensures the quality of a foam solution after it has been created by a foam proportioning system?
Foam solution refractivity test
What test is used to ensure the quality of synthetic based foam produced by various foam proportioning systems and equipment?
Foam solution conductivity test
What test is used with a meter that displays units of micro-siemens per centimeter?
Conductivity comparison testing
If the requirements of NFPA 1901 are included in the apparatus bid specifications, the manufacturer is required to perform two specific tests in addition to the pump certification tests. What are they?
Road and hydrostatic
Which test must meet minimum standards in accordance with NFPA 1901 and be conducted with the vehicle loaded to the same weight as it will be when placed in service and is considered a preservice maneuverability test?
Road
What is the minimum hydrostatic test pressure, for a minimum of 10 minutes, when testing the pump body as well as the entire intake and discharge piping system, with the exception of the tank fill and tank-to-pump lines on the tank side of the valves?
500
In order to ensure that the engine develops the necessary power to operate in conditions of higher altitudes, a pumping engine overload test should be performed in jurisdictions with a elevation higher than how many feet?
2,000
Based on NFPA 1911, the standard for the inspection, maintenance, testing and retirement of in-service automotive fire apparatus, a pumper must be performance tested at least how often?
Once a year
Regarding pumper performance testing sites, the barometric pressure should be at least 29 inches on Mercury(Hg)(100kPa) when corrected to sea level. This adjustment is necessary because a 1-inch drop in barometric pressure reduces the static lift of a pumper by approximately how many inches/feet?
1 ft
To monitor the continued serviceability of the hose throughout the test, a mark may be scribed where the hose and couplings meet. During the testing process, check the couplings periodically to be sure that they are not pulling apart. Stop the test and replace the hose if the scribe mark has moved how far away from the coupling?
3/8 of an inch
Net pump discharge pressure is the difference between the intake pressure and the discharge pressure. When operating at draft, how does the net pump discharge pressure read compared to the pressure displayed on the discharge gauge?
Is more than
NFPA 1911 specifies that all gauges used for service testing must be calibrated within how many days of the testing?
60
When the driver/operator has the apparatus prepared for the pumping test, operate the priming system until the pump achieves prime and is discharging water. According to NFPA 1911, fire pumps rated at 1,500 gpm (6 000 L/min) must be primed within how many seconds?
45
NFPA 1901 contains numerous minimum standards to which apparatus should comply after construction is complete. One such minimum standard states that the apparatus must accelerate to 35mph from a standing start within how many seconds?
25
NFPA 1901 contains numerous minimum standards to which apparatus should comply after construction is complete. One such minimum standard states that the apparatus must come to a full stop from 20mph within how many feet?
35
When conducting the pump test a sufficient number of discharge hoses must be stretched and operated. What is the minimum diameter hoseline for this purpose?
2 1/2
A flowmeter, which indicates flow in gallons (or liters) per minute, within what percent of accuracy, offers increased efficiency over a pitot gauge when determining flow from nozzles during a pump test?
Plus or minus 5%
When should personnel wear hearing protection to perform fire pump service testing?
If noise levels have the potential to reach or exceed 90 decibels (dB)
Which method checks the volume of foam concentrate that is drawn through the system to determine the accuracy of the proportioning equipment?
Foam concentrate displacement
Which method is used by certain direct injection type proportioning systems to check the volume of foam concentrate that is proportioned into a fire stream? Water may also be used as a substitute for foam concentrate during testing with this procedure.
Foam concentrate pump discharge volume
Who should evaluate the apparatus if the engine is not running at the correct speed?
A qualified mechanic
Pumpers with an onboard tank capacity of 500 gallons (2 000 L) or less must be capable of flowing how many gpm (1 000 L/min) from their onboard tank?
250
Pumpers with an onboard tank capacity of greater than 500 gallons (2 000 L) must be capable of flowing at least how many gpm?
500
If apparatus bid specifications include requirements from NFPA 1901, which test are manufacturers required to conduct in addition to pump certification tests?
road test
During road test, what speed must the apparatus be able to reach from a standing start within 25 seconds?
35 mph
During road test, apparatus must come to a full stop from 20 mph within?
35 feet
The purpose of performing hydrostatic testing is to?
ensure that the pump and associated piping are capable of withstanding high pressure pumping demands
What is the minimum pressure that must be achieved during hydrostatic testing?
500 psi
During pump certification tests, which additional test must be conducted for apparatus equipment with onboard water tank?
tank-to-pump flow test
Which standard sets the requirement for pumping performance testing
NFPA 1911
Which of the following test is required as part of pump performance testing?
pressure control test
When using a static water source to conduct pump performance tests, how far below the surface of the water must the trainer be submerged?
2 feet
When conducting pumper performance testing, the water temperature should be between 35degrees and?
90 degrees
What is the minimum diameter hoseline that may be used to conduct pump performance tests?
2 1/2 inch
NFPA 1911 specifics that all gauges used for service testing must be calibrated within?
60 days of testing
When conducting apparatus performance testing, hearing protection should be worn if noise levels have the potential to reach or exceed?
90 decibels
Who should evaluates an apparatus if its not running at the correct speed during an engine speed check?
qualified mechanic
When preparing the intake hose for drafting during a vacuum test, the intake hose hose strainer should be a minimum of how many inches below the surface of water?
24 inches
A pumper rated at 1,500 gpm capacity shall achieve a prime within how much time?
45 seconds or less
When conducting discharge pressure gauge and flowmeter operational test, the difference in the reading between the flowmeter and pitot gauge must not be more than?
10 percent
Which of the following pieces of equipment is required if a flowmeter is not used during performance testing?
pitot tube
Any apparatus that receive performance test results below what percent of its original rated capacity may be placed out of service and restored or given a lower rating based on its test results?
90 percent
During a tank-to-pump flow test, pumpers with an onboard tanks of 500 gallons or less should be capable of flowing how much from their onboard water tank?
250 gpm
When is the new fire apparatus tested?
upon completion and periodically
Manufacturer’s test, pump certification test, and acceptance tests are all a part of which series of tests?
Preservice Testing
Which 3 NFPA Standards are commonly used as a basis for most apparatus bid specifications?
1907, 1906, 414
Which test is conducted to demonstrate to the purchaser that the appratus conforms to all bid specifications?
acceptance testing
If the apparatus build specs include requirements of NFPA 1901, what two tests must be performed by the manufacturer?
road test and hydrostatic test
Where is acceptance testing conducted?
purchasing jurisdiction
What procedure is used to determine the rate of water flow available for firefighting at various points within the distribution system?
fire flow test
What testing method uses water under pressure to check the integrity of any pressure vessels?
hydrostatic test
What would be ground for a purchaser to reject an apparatus?
if the apparatus fails to perform to the requirements outlined in the bid specs
Engine speed check, pumping test, priming system test, and engine speed interlock test are exmpaloys of tests required to certify pumps capable of flowing what?
750-3000 GPM
Who should have a pumping engine overload test done?
jurisdictions that are higher than 2000’
What is the preferred method of water supply for pumper performance tests?
static water supply
What can be done to ensure the couplings are not seperating from the hose during performance testing?
scribe a mark where the coupling attaches to the hose
What is the maximum distance from the centerline of the pump to the surface of the water for pumper rated at 1,500 GPM or less?
ten feet
What is the maximum distance from the centerline of the pump to the surface of the water for pumps rated at 1,500GPM or less?
six feet
What is Net pump discharge pressure?
The difference between the intake pressure and the discharge pressure
What allowances are used to determine the correct pump discharge pressure for each test when correcting for net pump discharge pressure?
friction loss
Which test evaluates the priming device, pump, and intake hose for air leaks?
vacuum test
What instrument indicates the rotational speed of a shaft in revolutions per minute?
tachometer
The difference in readings between the flowmeter and the pitot gauge cannot be more than what percent?
10%
How many inches below the surface of the water dose intake hose strainer need to be?
24 inches
what temperature should water be between for performance testing?
35F -90F
what is the purpose of hydrostatic testing?
to ensure the pump and piping are capable of withstanding high pressure demands
who should evaluate an apparatus if not running a correct speed?
qualified mechanic
What percentage below orginal rated capabilites does an appartus go out of service?
90%
How far must an apparatus come to a complete stop from 20 mph?
35ft
what piece of equipment is required if not using a flow meter during performance testing?
pitot tube
What NFPA has requirements for service testing?
NFPA 1911
What happens if dicharge gauge is not properly tested and calibrated?
driver/operator could supply the hose dangerously high
What is the purpose of preperformance testing?
that the pump and powertrain will perform as s[ecofoed imder normal pressure
When should you were hearing protection during testing?
90 decibels
Is it necessary to do vacuum test before any performance testing?
Yes because it difficult to proceed if the pump can’t hold a vacuum
what is the minimum pressure for hydrostatic testing?
500 psi
How far below the surface must the strainer be during hydrostatic testing?
2ft
What speed does an apparatus need to reach in 25 seconds from?
35mph
how fast should a 1,500 gpm capacity engine get a prime?
45 seconds or less
