QUESTIONS & ANSWERS
Which test is performed to ensure that the pumps and associated piping are
capable of withstanding high pressure pumping demands? - ANSWER-
Hydrostatic testing
Foam proportioning equipment testing should occur before being placed in
service and: - ANSWER-periodically thereafter.
Pump testing should be performed:
Two tests - ANSWER-during both acceptance tests and certification tests.
Which foam proportioner test measures the velocity of light that travels
through foam and compares it to a base reading? - ANSWER-Foam solution
refractivity test
A flowmeter might be used instead of a pitot gauge during a pump
performance test, because flowmeters are: - ANSWER-more efficient.
What is the purpose of acceptance testing? - ANSWER-To demonstrate to the
purchaser that the apparatus conforms to all bid specifications at the time of
delivery
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-performance
requirements.
What is the maximum speed that must be reached by apparatus during road
tests? - ANSWER-50 mph (80 km/h)
According to NFPA® 1911, all gauges used for service testing must be
calibrated within _____ of testing. - ANSWER-60 days
Which apparatus performance tests require that a discharge hoseline from a
second pumper be connected to the apparatus being tested? - ANSWER-
Internal intake pressure relief valve test
When securing a detachable ladder pipe system on an aerial ladder, the hose
should be run directly up the center of the ladder rungs because: - ANSWER-
, placing the hose on either side of the center causes unnecessary torsional
stress on the ladder.
Engineering design has proven that aerial ladder trusses lend more strength
if assembled members form: - ANSWER-triangles.
Voice communication systems in the aerial device are used to:
Communicate between - ANSWER-permit firefighters at the tip of the aerial
device to communicate with the driver/operator at the aerial operator
position.
Portable lights are used where fixed lights are not able to reach or: -
ANSWER-when additional lighting is necessary.
Which of the following NFPA® standards now requires a two-way
communication system on all aerial device apparatus? - ANSWER-NFPA®
1901
Which type of valve limits the pressure built up in the hydraulic system, thus
preventing damage due to overpressurization? - ANSWER-Relief valve
When it is necessary to place a firefighter at the end of the aerial device
during elevated master stream operations, the elevating platform is safer
and has: - ANSWER-more working room than the aerial ladder.
The primary difference between aerial ladder platforms and telescoping
aerial platforms is: - ANSWER-telescoping aerial platforms are not intended
for climbing.
Which interlock device prevents the aerial device from moving into regions
where it could make contact with the body or cab? - ANSWER-Body collision
interlock
Which NFPA® standard establishes the number of sections and minimum
reach required of an aerial apparatus? - ANSWER-NFPA® 1901
If multiple apparatus must work on a bridge, they should not be parked on
the same span because: - ANSWER-the combined static load may exceed the
bridge's design limitations.
Parking lots with the potential for stabilization problems should be identified:
- ANSWER-in preincident plans.