最終更新日:2022/12/23
例文
The
pumps
were
about
9
1/2
feet
above
the
suction
bellmouth,
which
was
about
10
inches
above
the
bottom
of
the
tank
and
about
22
inches
starboard
of
the
sump's
centerline.
Because
the
bellmouth
was
offset
to
the
starboard
side
of
the
sump's
centerline,
the
system
was
more
susceptible
to
losing
suction
from
a
port
list.
Thus,
the
NTSB
concludes
that
the
port
list,
coupled
with
the
vessel’s
motion,
most
likely
caused
air
to
enter
the
bellmouth
of
the
suction
pipe
to
the
lube
oil
service
pump,
which
resulted
in
a
loss
of
oil
pressure
that
caused
the
main
engine
to
shut
down.
復習用の問題
The pumps were about 9 1/2 feet above the suction bellmouth, which was about 10 inches above the bottom of the tank and about 22 inches starboard of the sump's centerline. Because the bellmouth was offset to the starboard side of the sump's centerline, the system was more susceptible to losing suction from a port list. Thus, the NTSB concludes that the port list, coupled with the vessel’s motion, most likely caused air to enter the bellmouth of the suction pipe to the lube oil service pump, which resulted in a loss of oil pressure that caused the main engine to shut down.
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