Chapter 15 - Apparatus Testing

Question 1

Which formula would be used when correcting net pump discharge?

Answer 1

Pressure correction formula

Question 2

What two tests are MOST likely to be included in manufacturers’s tests?

Answer 2

Road test and hydrostatic test

Question 3

According to NFPA® 1911, how often should a pumper be performance tested?

Answer 3

At least once a year

Question 4

When is pump certification testing conducted?

Answer 4

Before final acceptance of the vehicle

Question 5

The engine speed check should be conducted under what type of conditions?

Answer 5

No-load

Question 6

Which category of preperformance tests are fire department personnel MOST likely to be involved in?

Answer 6

Acceptance tests

Question 7

Which performance test evaluates the overall operation of the engine and the fire pump?

Answer 7

Pumping test

Question 8

When conducting pump performance tests using a static water source, how deep must the water be?

Answer 8

at least 4 ft

Question 9

Pump testing should be performed during both:

Answer 9

acceptance tests and certification tests.

Question 10

Which foam proportioner test verifies the ability of the foam product to conduct electricity?

Answer 10

Foam solution conductivity test

Question 11

If a flowmeter is used during performance testing, what piece of equipment may be used in place of smooth bore nozzles?

Answer 11

Fog nozzles

Question 12

A pitot tube is required if a _____ is not used during performance testing.

Answer 12

flowmeter

Question 13

When completing performance testing, what is most likely to happen if an apparatus achieves results of less than 90 percent of its originally rated capabilities?

Answer 13

It will be placed out of service and restored to its original capabilities.

Question 14

Which foam proportioner test measures the velocity of light that travels through foam and compares it to a base reading?

Answer 14

Foam solution refractivity test

Question 15

What is the maximum speed that must be reached by apparatus during road tests?

Answer 15

50 mph

Question 16

Foam proportioning equipment testing should occur before being placed in service and:

Answer 16

periodically thereafter.

Question 17

Which test is more important for jurisdictions located at least 2,000 ft (600 m) above sea level?

Answer 17

Pumping engine overload test

Question 18

The engine speed interlock test is part of which category of preperformance tests?

Answer 18

Pump certification tests

Question 19

Which apparatus performance tests require that a discharge hoseline from a second pumper be connected to the apparatus being tested?

Answer 19

Internal intake pressure relief valve test

Question 20

Which test verifies that the piping between the onboard tank and pump is sufficient to supply the minimum amount of water as specified by NFPA® 1901 and the design of the manufacturer?

Answer 20

Tank-to-pump flow test

Question 21

If a jurisdiction seeks special requirements from the manufacturer to ensure that the apparatus will perform as required under local conditions, they may be written into the bid specifications as:

Answer 21

performance requirements.

Question 22

When road tests are conducted as part of manufacturers’ testing, what type of conditions should be present?

Answer 22

Flat, dry, paved roads in good condition

Question 23

During the tank-to-pump flow test, pumpers with an onboard capacity of greater than 500 gallons (2 000 L) must be capable of flowing at least:

Answer 23

500 gpm

Question 24

What is MOST likely to happen if an apparatus fails to comply with bid specifications?

Answer 24

The apparatus will be rejected by the purchaser.

Question 25

A flowmeter might be used instead of a pitot gauge during a pump performance test, because flowmeters are:

Answer 25

more efficient.

Question 26

Which foam proportioner test discharges foam at a predetermined flow into a calibrated tank for a specific period of time?

Answer 26

Foam concentrate pump discharge volume method

Question 27

What should be done if the pump fails to reach 22 inches of mercury (-75 kPa) during the vacuum test?

Answer 27

Remove the apparatus from service until repairs can be made.

Question 28

For a pumper with a 1,250 gpm (5 000 L/min) capacity, how quickly must it achieve prime during the priming system performance test?

Answer 28

30 seconds or less

Question 29

During service testing, personnel should operate the engine throttle slowly in order to help prevent which potentially dangerous situation from occurring?

Answer 29

Sudden pressure changes

Question 30

When conducting pumper performance testing, the air temperature should always be above:

Answer 30

0°F

Question 31

Which test is performed to ensure that the pumps and associated piping are capable of withstanding high pressure pumping demands?

Answer 31

Hydrostatic testing

Question 32

In addition to yearly testing as required by NFPA® 1911, when should pumper performance be tested?

Answer 32

Whenever the apparatus has undergone major pump or powertrain repair

Question 33

When conducting discharge pressure gauge and flowmeter operational tests, a difference in readings between the flowmeter and pitot gauge must not be more than:

Answer 33

10 percent.

Question 34

Which pieces of equipment are evaluated for air leaks using a vacuum test?

Answer 34

Priming device, pump, and intake hose

Question 35

According to NFPA® 1911, all gauges used for service testing must be calibrated within _____ of testing.

Answer 35

60 days

Question 36

Which test is performed in a three-part sequence and may be completed while the pump is still set up after the pumping test?

Answer 36

Pressure control test

Question 37

Which dangerous substance should be monitored for during service testing?

Answer 37

Carbon monoxide

Question 38

Who is in charge of performing pump certification tests?

Answer 38

Independent testing organizations

Question 39

Which factor would be MOST important to consider when correcting net pump discharge pressure for apparatus testing?

Answer 39

Friction loss in the intake hose

Question 40

Which foam proportioner test checks the volume of foam concentrate that is drawn through the system?

Answer 40

Foam concentrate displacement method

Question 41

What piece of equipment is used to determine engine speed during performance testing?

Answer 41

Tachometer