The cause of a hearth pump is to supply water at the required quantity and __________
a) Centrifugal pressure
b) Pressure
c) Displacement
d) Friction loss
b) Pressure
Fire Department pumpers might also reap water resources from ________
a) Static assets
b) The hydrants c) Apparatus water tank
d) all the above
d) all the above... Its continually all of the above
What is the reason of searching underneath a truck in the course of automobile inspections?
A) To make certain shocks are in area
b) To look into for fluid leaks
c) to check for tire harm
d) to examine the gasoline tank b) To inspect for fluid leaks
If viable, while building collapse is a possibility, truck ought to be region a minimal distance of
_________
a) One and a 1/2 instances the building's peak b) Twice the peak of the wall away from the
building
c) Half the height of the wall faraway from the building
d) Parallel to the direction the wall can also fall
a) One and a half of times the height of the constructing
Optimum ( maximum ) water quantity can be completed while working from a source:
a) 6 meters beneath the pump
b) three meters underneath the pump
c) 10 meters under the pump
d) 5 meters beneath the pump
b) Three meters below the pump If you hook up with a hydrant with one or two 65mm shops,
what's the primary drawback? A) Shorter hose lengths
b) Weak production
c) Limits water deliver
d) Increased maneuvering time
c) Limits water supply
Which of the following is a bonus of using water as an extinguishing agent.
A) low heat absorbing capacity
b) High availability
c) Low surface tension
d) High potential and reflectivity
b) High availability
, The roughness of the inner liner of a hose is usually referred to as the _________.
A) Internal friction
b) Surface ratio
c) The friction coefficient d) Roughness component
c) Coefficient of friction
What is the first-rate method to save you water hammer
a) Remove pressure lever devices from equipment
b) Open and close valves and nozzles slowly
c) Use large diameter hose
d) Reduce pressure within the water deliver gadget
b) Open and near valves and nozzles slowly
Define: Hammer for water Surge of strength within the opposite course resulting from stopping
water shifting thru a hose or pipe
Define: Vacuum
Any stress much less than atmospheric
Define: Residual Pressure
The Part of total available pressure not used to conquer friction loss or gravity
Define: Static Pressure
Stored potential electricity available to pressure water thru pipe, fittings, hearth hose, and
adapters
Which of the following nozzles is called the constant stress nozzle
a) Manually adjustable
b) Constant float
c) Automatic
d) All hand-held nozzles
c) Autonomous Which of the following is not a attention while determining pump discharge
pressure
a) Length of line
b) Size of pump
c) Size of line
d) Nozzle Positioning b) Size of pump
If the flow through a hose line is extra than 1400l/min , it's far safe to anticipate a friction loss of
______ for each equipment.
A) 20 kPa
b) 30 kPa
c) 70 kPa
d) a hundred kPa
c) 70 kPa
A stable master movement tool should be operated at ___________
a) 700 kPa
b) 560 kPa
c) 500 kPa
d) 650 kPa
b) 560 kPa