IFSTA 15 Apparatus testing Flashcards
What are the two types of testing for apparatuses
515
Pre-service test and performance tests
Define preservice tests
Driver operator usually not involved,
but may assist
types of tests include
Manufacture
pump certification
acceptance
NFPA standards generally used
How often are performance tests Performed
On an annual basis and after major repairs
What characteristics are included in the manufacturers portion of a pre-service test
Road test
hydrostatic test
What acceleration standard is used for the road test within 25 seconds
Accelerate to 35 miles per an hour within 25 seconds
What is the maximum top speed that must be achieved during the road test
50 mi. per an hour
At what speed and distance must and apparatus come to a stop during the road test
20mph stop in 35’
What is the standard of the hydrostatic test during the manufacturers testing portion
Tank fill, tank to pump, valves are subjugated to a minimum hydrostatic test of
500 psi for a minimum 10 minutes
NFPA 1911
standard for inspection, maintenance & testing
site consideration for pump performance testing at draft
Distance from centerline of pump intake above surface water will be based on capacity
1500 GPM or less 10 feet
2000 GPM 6 feet
What range of air temperature should exist when performing pumper performance test
0 - 110
What range of water temperature should exist when performing pumper performance tests
35-90
What minimum barometric pressure (inches of mercury) should exist during pumper performance testing
29” of mercury
What is the minimum diameter of hose line to be used while conducting pumper performance test
2 1/2”
During testing if A mark on a hose coupling moves more than —— amount of inches from the coupling testing should stop and replacement of hose should occur
3/8”
Define net pump discharge pressure
Difference between intake pressure and discharge pressure
At what psi intervals is the pump tested at during performance testing
150
165
200
250
All gauges used for service testing must be calibrated within how many days of testing
60
During testing if a flowmeter is not being used what type of nozzle must be attached to the hose
smoothbore
During testing if a flow meter is used what type of nozzle may be attached to the hose
smoothbore or fog
during testing, the flow meters used must be + or - what percent accuracy
5%
which test is generally conducted first while conducted performance evaluations
vacuum test
how many inches of mercury must be achieved during vacuum testing
22”
fire pumps of 1250 gpm and 1500 gpm must achieve a prime within how many seconds
1250 - 30 seconds or less
1500 - 45 seconds
pumpers with a tank capacity of 500 gallons or less must be capable of flowing how many gpm
250
pumpers with a tank capacity greater than 500 gpm must be capable of flowing a minimum of
500 gpm
if an apparatus achieves less than 90% of its original rated capacity what 2 options exist
may be removed from service & repaired
be given a lower rating
true or false, NFPA 1911 requires foam proportioning devices to be tested on an annual basis
false
what 4 methods are used to test foam proportioning equipment
displacement method
pump discharge volume method
solution refractivity method
solution conductivity method
what does concentrate displacement method test
accuracy of volume of concentrate drawn through system
what does pump discharge volume method test
direct injection systems
define refractometer
measures amount of foam concentrate in the solution. using light velocity like x ray
