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第一章
船舶概论
船舶的种类、结构及相关参数
8.
The
structural
members
of
the
hull
1.
The
two
basic
types
of
cargo
ships
extending in a fore and aft direction
are
are____
called___
A.
container ships and oi thankers
A. frames
s
udinal
B.
bulk carriers and liquid carriers
cargo carriers and oil
tankers
9. If the buoyant
force
浮力
on a
ship?s
cargo
carriers
and
dry
cargo
carriers
2.
Which is not a liquid cargo carrier in
the following ships?____
A.
LNG
carrier
carrier
al tanker
carrier
3.
___
bulk
carrier
is
the
largest
bulk
cargo ship?
A.
Panamax
-size
e
D.
Suezmax
4.
A
ship
designed
for
carrying
goods
requiring refrigeration is called_____
/RO
SHIP
NER
5.
A
ship
designed
to
carry
trucks
and
cars
which are driven on and off the ship
on
their own wheels is called a _____
/ro
ship
ner
carrier
6 .
VLCC stands for_____
A.
very
large
car
carrier
large cargo
carrier
C.
very
large
crude
carrier
large coal carrier
7. Which
one is not true?
A. Two main areas of
skill are involved
in the construction
of ship.
B.
There
are
distinct
divisions
in
responsibilities between naval
architects
and marine engineer
C.
Each
ship
will
assume
varying
proportions
according to its type.
D.
Ships
can
be
divided
into
different
categories from
different perspectives.
hull
is
equal
to
or
greater
than
the
displacement tonnage the ship will___
A. require ballast added to only the
port
side tanks
down by the head
10.
The
abbrevianon
?GM?
is
used
to
represent the____
A.
height
of
the
metacenter
ng arm
ng
moment
ntric height
11.
The
value
of
GM
still
remains
one
meter,
meanwhile
we
can
pump
the
ballast
water to___the ship on even keel.
A.
make
12.
The stability of a vessel is normally
the
greatest
when
all
fuel
and
water
tanks are full because
the___
A.
center
of gravity is lowered
B.
center of
buoyancy is lowered
C.
reserve buoyancy is unchanged
D. hull
freeboard is increased
13.
You may improve a vessel?s stability
by____
A. keeping the fuel
tanks topped off
B. increasing the free surface effect
C.
keeping
the
fuel
tanks
at
least
half
full
D. keeping at least one fuel tank empty
for slops
14. The distance
between the bottom of
the hull and the
waterline is called____
A.
tonnage
e
buoyancy
22. The
difference between the starboard
ard
15.
For
an
upright
vessel,
draft
is
the
vertical
distance
between
the
keel
and
the____
A.
waterline
B.
Freeboard
deck
ll
mark
ip
section
16.
In
dry
docking
repair
,the
hull
of
a
ship
will
be
descaled
and
repainted
thoroughly from the____to deck.
A.
keel
ine
ide
17. The space we arrange propelling and
other
auxiliary
machines
onboard
is
called___
A.
the
engine
room
cargo
hold
steering gear room
bilge
18. The
ship of 70,000 DWT ,the DWT
here
means____
A. its maximum discharging
capacity
B. Its maximum weight
C.
The
maximum
discharging
capacity
deducting ship?s
own weight
D. The maximum
cargo weight
19.
When
a
ship
in
loaded
condition
floats
an
arbitrary
water
line,
its
displacement
is___
to
relevant
mass
of
water displaced by the
ship.
A.
equal
r
lent
20. The displacement of a ship is___ to
the
weight,
all
told,of
the
relevant
loaded ship.
A.
larger
r
lent
21. The trim of a
vessel is the___
A.
value
of
the
mean
draft
of list
of
roll
ence in fore and aft drafts
and
port
drafts
caused
by
a
transverse
shift in weight is ___.
A.
list
ion
23.
If
your
vessel
has
a
starboard
list
after taking on fuel,
you
would transfer
fuel____
A.
to
starboard
port
d
24.
If
fuel
is
burned
from
only
the
starboard tanks,the ship
will___
A. go down by the
head
B.
list to starboard
C. trim by
the stern
D.
list to port
25.
Propeller
pitch
speed
minus
ship
speed
divided
by
the
propeller
pitch
speed is termed____
A.
apparent
ship
slip
sive efficiency
26.
In
moving
forward
a
ship
imparts
forward motion to the water at the
sterns,
this is know as ____
A. the speed of the vessel
speed of the
propeller
wake
wake
fraction
27.
Wake
varies
considerably
with
the
form
of
the
vessel,
but
generally
speaking
the
bluffer
the
ship
_____ the wake value
A.
the
higher
lower
faster
slower
28. We have stayed at Shanghai port for
a
long
time.
The
fouling
on
the
ship?s
hull
greatly increased her ____
A.
power
ance
force
29.
Which of the following equipment is
not
fitted on the bridge?
A.
PPI
POST
30. Which of the following
equipment is
36.
Since
the
burning
or
combustion
not in the wheel
house
？
takes
place
within
the
engine
itself,
the
A.
The
steering
engine
engine is know as _____
telegraph
A.
a fire -tube boiler
internal
main
engine
tachometer
combustion engine
emergency generator
external
combustion
engine
31.
Which
is
not
used
when
the
officer
internal combustion
generator
controls the ship?
37.
________
the
engines,
the
diesel
A.
The
main
engine
tachometer
engine is_____used engine
on board .
rudder angle
indicator
compass
repeater
fuel
level gauge
32. ECDIS means____
A. Electronic Chart Display Information
System
B. Electric CD
information Scheme
C.
End
Chart
Digital
Information
Scheme
D.
Engine
Chart
Display
Information
Standard
33. ARPA
(fitted on the bridge)
stands
for_____
A. Audio
Radio Plotting Aids
B. Automatic Radar
Plotting Aids
C. Advanced Research
Projects Agency
Network
D.
Advanced Research Projects Agency
34.
In the following statements about the
functions of bridge
group
switch board,
the incorrect one is_____
A. to control and monitor the
navigation
and signal lights
B. To remote start and stop the motors
of
steering gear
C. To give
ship general alarm
D. To
start generator diesels
轮机常识
主推进动力装置：
34.
The diesel
engine is a type of _____.
A. turbine
engine
B. gas
turbine
C.
steam
engine
D.
internal
combustion engine
。
A.
Between/more
commonly
/the most commonly
C.
Between/not
more
commonly
/not the most
commonly
38.
Diesel
engines
instead
of
steam
engines
used
as
main-
engine
on
board
ships is mainly because____
A.
they
have
a
high
mechanical
efficiency
B
they
have
a
high
thermal efficiency
are
more
reliable
need less space
39.
____,so
they
are
widely
used
on
board ship nowadays.
A.
Diesel engines have more advantages
in
comparison with gasoline engines
B.
The
diesel
engine
have
more
advantages
in
comparison
to
the
gasoline engines
C.
Gasoline
engines
have
more
advantages
in
comparison
with
diesel
engines
D.
The
gasoline
engine
have
more
advantages
in
comparison
to
the
diesel
engine
40.
Propulsion
of
the
vast
majority
of
contemporary
merchant
ships(especially
containerships and VLCC) utilized ____
as prime mover.
A.
gas
turbine
engine
engine
ne
engine
41.
The
abbreviation
“M/E”
is
used
to
represent the____
A.
measure
equipment
electrical
engine
vessel?s
single
large
-diameter,
engine
fixed-
pitch propeller.
42.
We
call
a
ship
equipment
with
a
A.
a
singe,
diesel
engine as main engine ____
long-
stroke,slow-speed,turbocharged,
A.
a
tug
boat
B.a
salvage
ship
two-stroke diesel engine
oil tanker
D.a motor
vessel
43.
The
slow
speed
main
propulsion
diesel
operates
on
two-
stroke
cycle.
At
this
low
speed
the
engine
requires
no
reduction gearbox-between it and____
A.
thrust
block
ler
wheel
44.
The
term
medium
speed
diesel
engine
is
currently
taken
to
mean
an
engine
with
an
operating
rotational
speed of ____ rpm
A.
below
300
1200
n
300
to
1200
1200
45.
The
majority
of
medium
speed
and
high
speed
marine
diesel
engines
for
main
or
auxiliary
drive
operate
on
the
____cycle
A.
two-
stroke
-stoke
-stroke
-stroke
46. The diesel works as the prime mover
of
a
modern
large
vessel
(such
as
the
VLCC) is usually of_____type.
A.2
stroke
middle-speed
B.2
stroke
low-speed
C.4
stroke
high-speed
D.4
stroke
low-speed
47.
Owing
to
its___,
the
low
speed
cross-head
diesel
engine
is
widely
used
on
board ship as a main engine.
A.
smaller size
and simple construction
B.
long
life,
lower
cost
and
higher
reliability
operation and
management
construction
and
easier
management
48.
Typical
marine
propulsion
plants
include
_____directly
coupled
to
the
B.
A
singe,
long-stroke,medium-
speed,turbocharged
,four-stroke diesel
engine
C.
Two
medium-speed,turbocharged,four-stroke
diesel engine
D. A variable-speed AC generator
49. The vessel is driven by an FPP, so
its
main engine must____
A.
run at a fixed speed
at
a
controllable speed and be reversible
continuously
at
a
higher speed
50. The marine diesel engine is a type
of
diesel engine used on ships. The____
of
its
operation
is
not
very
difficult
to
understand.
A.
principle
pal
51.
____is
a
source
of
power
by
which
the diesel engine may
operate.
A.
Water
energy
ical
energy
al
energy
energy
52. As a
heat engine, ____ energy is the
source
of power of power by which the
diesel
engine can be operated
A.
electric
ical
D,exhaust
53. The thermal
energy
produced by
an
internal
combustion
engine
is
transformed into ____
A.
combustion
energy
al
energy
al
energy
ical
energy
54.
Diesel
engines
are
classified
as
reciprocating
internal
combustion
engines because
they ____
A. use
energy from fuel
burned
outside
their cylinders
B.
Burn
fuel
in
a
combustion
chamber
that moves back and
down
C.
Burn
fuel
in
a
chamber
where
its
energy
moves a piston up and down
D. Use a continuous combustion process
to impart rotary motion to the pistons
55. The heart of the diesel engine is
the
___
where
the
fuel
is
burnt
and
the
power
developed.
A.
crankcase
er
ge box
s
56.
The
diesel
engine
is
a
type
of
internal
combustion
engine
which
ignites
the
fuel
by
injecting
it
into
hot
high pressure air in a____
A.
air
bottle
compressor
case
tion
chamber
57.
___into the cylinder because no fuel
can burn ____it.
A.
air
must
be
admitted/without
must be
injected/without
must
be
admitted/with
must be injected/with
58.
A
charge
of
fresh
air
is
drawn
into
the engine cylinder and
then ____ by the
moving piston ____very
high pressure.
A.
pressed/to
rized/with
/in
D. compressed/to
59.
When____is
compressed,
its
temperature
rises
so
that
it
ignites
the
fine
spray
of
fuel
injected
into
the
cylinder
A.
the
oil
B.
the
air
C.
the
fresh
water
D. the steam
60. Why is it
necessary to compress the
air
charge
in
the
cylinders
of
a
diesel
engine?
A.
To
ignite
the
fuel
insure
pumping losses are held to a minimum
increase
fuel
consumption
keep exhaust
temperature low
61.
Fuel
injected
into
a
diesel
engine?s
cylinder is ignited
by ____
A.
the
heat
of
compressed
fuel/air
mixture
in
the
cylinder
fuel
igniter
fuel
injector
fuel
pump
62.
The
ignition
of
the
fuel
in
diesel
engine
is
caused
by
the
___
of
compression
of
their
previously
admitted into the cylinder.
A.
vacuum
pressure
ic
gravity
ity
63.
The
burning
of
the
fuel
adds
more
heat
to
the
air
charge
,causing
it
to
expand and force the engine piston to
do
work
on
the
____which
in
turn
drives
the ship?s
propeller
.
A.
crank-pin
haft
ase
ft
piston
moving
up
and
down
keeps
the crankshaft____.
A.
to
revolve
ed
ing
be revolved
65. When the piston is pushed down, it
forces
the
engine
to
do
work
on
the
crankshaft
which in turn drives ___.
ship?s
rudder
ship?s
propeller
turning
gear
thrust
bearing
66. The linear motion of a
diesel engine
piston is converted to
the rotary motion
required to drive
gears, propeller shafts,
and generators
by the____
A.
flywheel
haft
C. journal bearings
ft
67. The
rotary motion of a diesel engine
crankshaft
is
obtained
from
the
up
and
down
motion of the piston via the____
A.
camshaft
ion gears
arm
ting
or
piston rod
68.
Theoretical
perfect
combustion
in
a
on heavy fuel oil and has available a
___
diesel
engine
yields
by-products
supply for manoeuvring conditions
of_____
A.
lubricating
oil
oil
A.
aldehydes
and
carbon
dioxide
al oil
lic oil
vapor and carbon monoxide
75.
The
successful
operation
of
any
en
and
carbon
monoxide
engine or machine and
____ depend on
vapor and
carbon dioxide
69.
The
working
cycle
of
a
four-stroke
diesel
engine
consists
of
four
events
;
①
< br>compression;
②
expansion
；
③
exhaust;
④
suction
.The
correct
sequence is ____
A.
④
-
②
-
③
-
①
B.<
/p>
④
-
③
-
①
-
②
C.
④
-<
/p>
③
-
②
-
①
D.
④
-<
/p>
①
-
②
-
③
70.
The
four
stroke
are
called
suction
,compression
,
expansion
and
exhaust ,but only___stroke provides the
power to drive the ship
A.
suction
ssion
ion
t
71.
With
four-stroke
engine
,it
takes
_____to make one power stroke
A.
one
propulsion
propulsions
revolutions
revolution
72.
With
four-stroke
engines,
it
takes
four
revolutions
of
the
crankshaft
to
make ___ power stroke
A.1
B.2
C.4
D.8
73.
For
a
given
size
engine
,
a
two-stroke
diesel
engine
will
deliver
more
power
than
a
four-stoke
diesel
engine because____
A. it has
a longer power stroke
B.
More
air
gets
into
the
cylinder
each
stroke
C.
It
develops
twice
as
many
power
strokes at the same speed
D.
Higher
combustion
pressure
is
developed
74.
A
slow-speed
two-stroke
diesel
is
usually
arranged to operate continuously
effective lubrication.
A.
their
no
trouble
period
freely trouble
period
free
trouble
life
trouble-free life
76. The
function of lubricating oil is
to
___
A.
reduce
friction
between
moving
surfaces
B.
Provide
even
distribution
of
bearing
wear
C.
Reduce
the
accumulation
of
harmful
detergents
D.
Maintain
a
constant
oil
temperature
output at each
bearing
77.
Heat
energy
is
a
source
of
power,
but___will cause damage to the engine
A. excessive heat
icient heat
ive
cooling
output
78.
Large
marine
diesels
of
crosshead
construction
generally have two systems
of
lubrication, ____ for cylinder and ___
for
the
running
gear
and
cooling
the
pistons
A.
a
circulating
system/a
total
loss
system
B.a
total
loss
system/a
circulating
system
opened system/a
closed system
D.a closed system/an opened
system
79.
Cooling
enables
the
engine
metals___their
mechanical properties
A.
to
retain
remain
maintenance
have
80. If a kind of liquid is used to cool
the
diesel
engine,
it
is
invariably
called
_____
A.
lubricant
t
D.
Prevent
the
engine
from
starting
at
tion
product
refrigerant
81.
Sea
water
is
not
directly
used
as
a
coolant for
engines because of its____
A.
low
specific
heat
ive
action
expense
property
82.
In
motor-ship
there
are
two
main
cooling circuits, ___
A.
one
salt
water
,one
fresh
water
B. one salt water , one
fuel
C.
one
fresh
water,one
fuel
D. one steam,one fuel
83.
The
diesel
engine
must
be
started
before
it
can
run
by
itself.
For
this
purpose
___ has to be used
A.
a
starting
system
starting
air
C.a
starting operation
D.A,B and C
84.
Diesel
engines
are
started
by
supplying
___into
the
cylinders
in
the
appropriate
sequence
for
the
required
direction
A.
fuel
oil
oil
ssed air
water
85.
A
marine
diesel
engine
is
started
by___
A.
supplying
high
pressure
oil
into
a
hydraulic motor
B.
Supplying
high
temperature
air
into
the cylinder
C.
Supplying
high
pressure
air
into
the
cylinder
D. Electrical igniting
86.
The starting air system of an engine
on
board usually has interlocks in order
to ______
A. Ensure a
successful shutting down at
emergency
conditions
B.
Ensure
a
successful
starting
at
emergency conditions
C.
Prevent
the
engine
from
starting
at
some
abnormal conditions
emergency conditions
87.
Electrically
operated
safety
devices
on
auxiliary
diesel
engines
function
to
stop the engine by ___
A.
increasing
the
volume
of
intake
air
ng off the fuel supply
sing
the
engine
back
pressure
-speeding the engine
88.
An
over
-
speed
safety
device
is
usually
fitted
to
a
generator
engine
for
____in the event of
over-speed
A. cutting power off the
engine
B.
increasing
the fuel pump setting
C. breaking the crankshaft
D.
stabilizing the ship
speed
89.
The
governor
of
a
generator
engine
is to____
A. make the engine
stop
B. Regulate the timing of
camshafts
C.
Make
the
rpm
stabilize
at
any
required
value
D.
Make
the
engine
run
at
nearly
constant speed
90.
We
can
control
the
speed
of
the
engine
by
____the
quantity
of
oil
supplied
A.
exchanging
ting
ing of oil supplied
91.
A
governor
automatically
controls
the output speed by ____
A.
fuel
supply
order
load
level
92.
On
most
diesel
engines,
The
governor
controls
the
output
speed
by____
A.
controlling
the
amount
of
fuel
injected into the cylinders
B. Varying the speed of the
turbocharger
C. Adjusting the
compression ratio
D.
Changing
the
timing
of
the
fuel
injection camshaft
93.
The
governor
controlling
a
diesel
engine
modulates
crankshaft
RPM
by
adjusting
the____
A.
intake
air
supply
harger
speed
injection
pumps
speed droop
94. When the engine speed slows down
the
governor
will
___the
engine
fuel
pump setting
A.
increase
of the above
95.
The
tachometer
of
main
engine
is
mainly connected to the ____of the main
engine.
A.
stern
shaft
g
gear
shaft
wheel
96.
The
____is
a
device
used
in
the
overhaul
of
main
engine
such
as
drawing
out
piston
and
changing
cylinder
A. deck crane
ad
crane
ion
and
spare
parts
crane
davit
97.
The
development
goals
for
a
large
marine
engine
are
many
often
interact
and in some cases
even ____ with each
other
A.
conflict
ize
le
98.
To
meet
the
market
requirements,
a
marine
diesel
engine
should
not
be
of____
A.
big
size
economy
speed
power
99.
The____on
a
ship
transmits
power
from the main engine to the propeller.
A.
automatic
control
system
regulating system
ission
system
system
100.
The
transmission
system
transmitting
power
from
the
engine
to
the
propeller
is
composed
of
shafts,bearings, and ___
ler
wheel
C. main engine
D. Crankshaft
101.
The
different
items
in
the
transmission system consist of_____
A.
the
thrust
shaft
B.
one
or more intermediate shafts
C.
the tail-shaft
D.
A,B
and C
102.
What
is
the
function
of
the
thrust
bearing?
A.
Prevents
lateral
movement
of
the
slow speed
gear
B. Transmits propeller thrust to
the hull
C. Keeps spring bearings in
line
D.
Prevents
main
reduction
gear
axial
movement
103. The function
of the thrust
block is
to
transfer
the
thrust
from
the
propeller
to___
A.
the
tail-shaft
B.
ahead and
astern thrust
C. the main
propulsion engine
D. the
hull of the ship
104. The thrust block ___the thrust
from
the propeller to the hull of the
ship
A.
conducts
B.
fits
C.
transfers
D. Carries
105.
The
propeller
screws
through
the
water
in much the same way ____ a bolt
screws
through it
A.
like
B.
alike
C.
as
D. Lowly
106.
A
propeller,
in
order
to
operate
efficiently
,
must
rotate
at
a
relatively
___
speed
A. high
B.
low
C. fast
D. lowly
107.
In
reducing
engine
speed
to
an
efficient
propeller
speed
by
the
use
of
reduction gears, ___
A. speed and torque are both reduced