1、【
单选题
】
The frequency of an alternator at a given RPM is determined by the ______.
[1分]
、
number of turns of wire in the armature coil
、
number of magnetic poles
、
strength of the magnets used
、
output voltage
答案:
2、【
单选题
】
While paralleling two AC generators using synchronizing(同步的) lamps only, both lamps will go dark when the generators are ______.
[1分]
、
running at the same speed
、
grounded
、
of the same polarity(极性)
、
in phase
答案:
3、【
单选题
】
The load sharing characteristics of two diesel generators operating in parallel are mostly dependent on their governor ______.
[1分]
、
load limit settings
、
idle speed settings
、
speed limit settings
、
speed droop settings
答案:
4、【
单选题
】
Electric insulation is made of organic substances and so gradually ______with age.
[1分]
、
deteriorates
、
increases
、
are fouled
、
becomes better
答案:
5、【
单选题
】
The main generators are connected to ______.
[1分]
、
distribution boards
、
section boards
、
emergency switch boards
、
main switch boards
答案:
6、【
单选题
】
The operation of _____ two alternators requires the voltages to be equal and also in phase.
[1分]
、
control
、
series-mounting
、
running
、
paralleling
答案:
7、【
单选题
】
______is a machine by which electrical energy is transformed into mechanical energy.
[1分]
、
An alternator
、
An electric motor
、
A diesel engine
、
A main switchboard
答案:
8、【
单选题
】
A ground in an electrical circuit outside the engine room ______.
[1分]
、
cannot be detected under normal conditions
、
is of no consequence to engineering personnel
、
is indicated at the branch circuit breaker panel
、
is indicated by the ground detecting lamps on the main switchboard
答案:
9、【
单选题
】
Time delayed or delayed action-type fuses are designed to ______.
[1分]
、
prevent grounds in branch circuits
、
prevent opens in motor circuits
、
permit momentary overloads without melting
、
guard lighting and electronic circuits
答案:
10、【
单选题
】
When voltage and current developed in an AC circuit reach their peak values at the same time, the power factor is ______.
[1分]
、
lagging
、
leading
、
maximum
、
minimum
答案:
11、【
单选题
】
When there is a fire in a large electric motor, normally the very FIRST step is to ______.
[1分]
、
secure the electric supply
、
ventilate area to remove smoke
、
start the fire pump and lead out hose
、
apply foam
答案:
12、【
单选题
】
Before “stand by” is rung on the engine telegraph, it is usual to give the main diesel engine a brief trial ______ahead and astern.
[1分]
、
with power
、
on power
、
with air
、
on air
答案:
13、【
单选题
】
Bridge orders must be ______and a record of any required changes in speed and direction should be kept.
[1分]
、
slowly carried away
、
carried out with a period of delay
、
promptly carried out
、
paid by the captain
答案:
14、【
单选题
】
After the order ' ______' is given, the air system is shut down, the turning gear put in.
[1分]
、
Finished With Engine
、
Stop The Engine
、
Stand-by Engine
、
Slow-down Engine
答案:
15、【
单选题
】
A tank has been sealed and unventilated(不通风的) for a long period of time. Which of the following conditions does this indicate?
[1分]
、
The tank is safe to enter.
、
The tank is especially dangerous to enter.
、
Carbon monoxide(一氧化碳) is present.
、
Water vapor present when the tank was sealed has oxidized(使氧化).
答案:
16、【
单选题
】
Fires involving combustible metals are classified as ______.
[1分]
、
class 'A' fires
、
class 'B' fires
、
class 'C' fires
、
class 'D' fires
答案:
17、【
单选题
】
The three basic components of a fire are chain reaction, heat, fuel, and ______.
[1分]
、
carbon monoxide
、
oxygen
、
carbon dioxide
、
any gaseous substance
答案:
18、【
单选题
】
CO2 extinguishes a fire by __________.
[1分]
、
a blanket of bubbles formed on the surface of the fire
、
smothering
、
isolating the heat from the fuel
、
cooling
答案:
19、【
单选题
】
Seawater may be used for drinking water ______.
[1分]
、
at a maximum rate of two ounces(盎司) per day
、
after mixing with an equal quantity of fresh water
、
if gather during or immediately after a hard rain
、
under no circumstance
答案:
20、【
单选题
】
Obviously, for a given fuel oil, its pour point is ______its cloud point.
[1分]
、
lower than
、
higher than
、
as same as
、
better than
答案:
21、【
单选题
】
Now that the valve is not worth ______, I suggest it ______.
[1分]
、
to repair/renewing
、
repairing/renewing
、
to repair/ be renewed
、
repairing/be renewed
答案:
22、【
单选题
】
When a vessel is in dry-dock, the vessel's engineers should ______.
[1分]
、
examine the condition of the propeller
、
chip and paint all hull protection zincs
、
install new docking plugs in all cofferdams
、
inspect the hull for hogging or sagging
答案:
23、【
单选题
】
The additional mark ______in the Classification Certificate for Machinery represents the propulsion apparatus is remotely controlled on the navigating bridge control station, and engine room is watched by duty personnel.
[1分]
、
BRC
、
MCC
、
AUT-0
、
AUT-1
答案:
24、【
单选题
】
Oil Record Book Part I shall be provided to ______.
[1分]
、
every oil tanker
、
every ship of 400 tons gross tonnage and above
、
every ship
、
any ship
答案:
25、【
单选题
】
“Inability to provide for the first watch at the commencement of a voyage and for subsequent relieving watches persons who are sufficiently rested and otherwise fit for duty.” is considered to be one of the detainable deficiencies(缺乏) under ______.
[1分]
、
the SOLAS Convention
、
the MARPOL Convention
、
the STCW Convention
、
the LOAD LINE Convention
答案:
26、【
单选题
】
The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the ______.
[1分]
、
Navigation Log Book
、
Engine Room Log Book
、
Oil Record Book
、
Muster List
答案:
27、【
单选题
】
When deciding the composition of the engineering watch, which may include _____appropriately, many factors shall be taken into account.
[1分]
、
satisfied engineers
、
qualified ratings
、
satisfied chief engineer
、
qualified chief engineer
答案:
28、【
单选题
】
During an engine room watch if immediate action is necessary to ensure safety of the ship, its machinery and crew, ______.
[1分]
、
the chief engineer must be informed at first
、
the captain must be informed at first
、
it must be taken by the duty engineer
、
the generator engine must be stopped
答案:
29、【
单选题
】
One of the methods NOT usually allowed in cleaning up oil spills in the United States is ______.
[1分]
、
skimmers
、
straw
、
dispersants
、
sawdust
答案:
30、【
单选题
】
According to the international regulations concerning the prevention of pollution of sea areas from ships, the disposal into the sea of all plastics is ______.
[1分]
、
welcome
、
admitted in some special sea areas
、
prohibited
、
acceptable
答案:
31、【
单选题
】
In cleaning up an oil spill, the use of chemical agents would ______.
[1分]
、
absorb the oil for easy removal
、
remove the oil from the water
、
disperse(分散) or dissolve the oil in the water
、
not affect the oil
答案:
32、【
单选题
】
The main objective of the SOLAS Convention is to specify ______for the construction, equipment and operation of ships, compatible their safety.
[1分]
、
at most references
、
at least references
、
maximum standards
、
minimum standards
答案:
33、【
单选题
】
These acid residues must be prevented from entering the crankcase, otherwise the lube oil would be _______ .
[1分]
、
optimized
、
emulsified
、
contaminated
、
oxidated
答案:
34、【
单选题
】
The ship security officer shall have knowledge and have received training, taking into account the guidance given in Part B of______.
[1分]
、
the ISM Code
、
the ISPS Code
、
the IBC Code
、
the IGC Code
答案:
35、【
单选题
】
According to above massage, the advantage of common-rail injection is______.
[1.5分]
、
smokeless operation
、
shockless operation
、
noiseless operation
、
no vibration operation
答案:
36、【
单选题
】
According to above massage, RT-flex engine can optimize______.① fuel injection pressure
② combustion ③ exhaust valve timing
[1.5分]
答案:
37、【
单选题
】
The key feature of the Sulzer RT-flex system is that it gives complete freedom in the _____ and operation of fuel injection and exhaust valve actuation.
[1.5分]
、
metering
、
timing
、
control
、
using
答案:
38、【
单选题
】
The RT-flex engine can run at very low speed, this is made possible by following things except _______.
[1.5分]
、
the precise control of injection
、
the higher injection pressures
、
the optimized exhaust valve timing
、
the sequential shut-off injectors
答案:
39、【
简答题】
(轮机日志)上午10时30分,由于不明原因运行中NO.1发电机跳闸,导致全船失电, NO.2发电机自动起动恢复正常供电。
[10分]
解析:
(turbine log) 10 a.m. 30 points, due to unknown causes operation of NO. 1 generator tripped, causing the whole ship losing electricity, NO. 2 generator automatic starting back to normal power supply.
40、【
简答题】
(修理单)NO.2重油分油机解体检修, 立轴、横轴抽出检查,所有密封橡胶O形圈、轴承换新。
[10分]
解析:
(repair single) NO. 2 heavy oil purifier is oily, vertical shaft, the horizontal axis of the overhaul sealed rubber out inspection, all o-rings, bearing change new.