Exam (elaborations)
MWS EOC (Mobile Water Supply) Exam
- Course
- Institution
MWS EOC (Mobile Water Supply) Exam
[Show more]
Content preview
MWS EOC (Mobile Water Supply) ExamA major advantage of a positive displacement pump over a centrifugal pump is that it
can - ANSWER-Pump air, making it self-priming.
According to NFPA 1901, a discharge pressure relief valve must operate within: -
ANSWER-10 seconds after discharge pressure rises 30 psi above the set level.
All of the following factors must be included when determining the total pressure loss
(TPL) except: - ANSWER-Pump pressure loss.
All of the following statements about static water sources are true except. - ANSWER-
The static water source closest to the incident should always be used first.
An important feature of most screw-on intake pressure relief valves is that they: -
ANSWER-Have bleeder valves to vent air when I connected line is being charged.
And MWS apparatus may have a steering system problems if the steering wheel can be
rotated without moving the front tires more than - ANSWER-10°
As operations proceed during water shuttles, make and break personnel at the fill site
should monitor: - ANSWER-Ground conditions.
At a fill site, a cone or similar device is used to: - ANSWER-Mark the stopping point for
an MWS apparatus.
At a water shuttle operation, the amount of water dumped is the amount of water the
tank holds less, - ANSWER-10%
Best type of strainer to use in a shallow stream is a: - ANSWER-Floating strainer.
Both the fill site time and the dump time include the time spent: - ANSWER-
Maneuvering/positioning.
draining - ANSWER-is best method of water discharge
During MWS apparatus service testing the atmospheric air temperature should be
between - ANSWER-0° F and 100° F
During the pre-service hydrostatic test, each pump is hydrostatically tested at a
minimum of: - ANSWER-500 psi over the pumps designated maximum operating
pressure for 10 minutes.
During the vacuum service test, the system vacuum and pump priming device should
achieve a column of mercury of at least: - ANSWER-22 inches.
, Fill site pumpers should have a minimum pump capacity of _____________ gpm -
ANSWER-1,000 gpm.
Flow pressure - ANSWER-Pressure created by the rate of flow or velocity of water
coming from a discharge opening.
Hard suction hose is generally have a diameter of between: - ANSWER-4 and 6 inches.
Head Pressure - ANSWER-is a meassurement based on the force created by the height
of a water supply above a disgharge point.
How many sides are on a tanker - ANSWER-there are 8 sides.
How much larger should a portable water tank used in a water shuttle operation be than
the water tank of the mobile water supply apparatus carrying it? - ANSWER-500
gallons.
Identify four pre-service test for an MWS apparatus equipped with a fire pump -
ANSWER-Road test, independent pump certification test, hydrostatic test, purchase
acceptance test.
Identify the true statement about an MWS apparatus with an automatic transmission. -
ANSWER-The automatic transmission on an MWS apparatus gives you the option of
selecting a gear.
Identify two correct statements about hydrants. - ANSWER-•Grid systems with large
supply mains and looping secondary mains generally have less friction losses and
deterioration.
•if hydrants are color coded, select a light blue hydrant when responding to a large
incident and be sure to test the flow before connecting the hydrant to the fire pump.
Identify two disadvantages of using a nurse tanker operation in a water shuttle. -
ANSWER-All MWS apparatus in the water shuttle are required to have a sizable pump.
Dumping time for each MWS apparatus is significantly higher.
Identify two items that should be included on daily MWS apparatus records: - ANSWER-
Coolant levels.Tire condition.
idnetify four pre-service test - ANSWER-Road test, Independent test, Hydrostatic test &
Purchase acceptance
If using a multi-stage pump for pumping from an internal tank or a hydrant: - ANSWER-
The SERIES/PRESSURE position gives you maximum pressure for a short period.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller CLOUND. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
73091 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now