甲乙类适任证书(轮机英语)模拟试题1

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3

One reason why the Convention has received such wide acceptance is _____.

  • A.that it is only the minimum standards
  • B.that it is the obligatory standards
  • C.that it is established by IMO
  • D.difficulties could arise for ships entitled to fly the flag of a Non-Party State
4

One especially important feature of the STCW Convention is _____.

  • A.the adoption of the policy “ more favorable treatment”
  • B.“ no more favorable treatment” to Non-parties of the convention
  • C.the adoption of the minimum standards
  • D.the adoption of the obligatory standards
5

材料:

The 1978 STCW Convention was the first to establish basic requirements on training, certification and watch-keeping for seafarers on an international level. Previously the standards of training, certification and watch-keeping of officers and ratings were established by individual governments, usually without reference to practices in other countries. As a result standards and procedures varied widely, even though shipping is the most international of all industries. 

The Convention prescribes minimum standards relating to training, certification and watch-keeping for seafarers which countries are obliged to meet or exceed. 

The Convention did not deal with manning levels: IMO provisions in this area are covered by regulation 13 of Chapter V of the International Convention for the Safety of Life at Sea (SOLAS), 1974, whose requirements are backed up by resolution A.890(21) Principles of safe manning, adopted by the IMO Assembly in 1999, which replaced an earlier resolution A.481(XII) adopted in 1981.

The Articles of the Convention include requirements relating to issues surrounding certification and Port State Control. 

One especially important feature of the Convention is that it applies to ships of non-party States when visiting ports of States which are Parties to the Convention. Article X requires Parties to apply the control measures to ships of all flags to the extent necessary to ensure that no more favorable treatment is given to ships entitled to fly the flag of a State which is not a Party than is given to ships entitled to fly the flag of a State that is a Party.

The difficulties which could arise for ships of States which are not Parties to the Convention is one reason why the Convention has received such wide acceptance. By December 2000, the STCW Convention had 135 Parties, representing 97.53 percent of world shipping tonnage.

问题:

Before the establish of the STCW78, the standards of training, certification and watch-keeping of seafarers _____.

  • A.were established by IMO
  • B.were established by a famous organization
  • C.were established by individual governments with reference to practices in other countries
  • D.varied widely among countries
6

The regulation 13 of Chapter V of the SOLAS 1974 covered _____.

  • A.the manning of ships
  • B.the standards of training certification
  • C.the standards of training
  • D.the standards of watch-keeping
7

During the engine room watch keeping, which equipment must be noted to ensure protection against spark erosion?

  • A.the antifouling plant
  • B.the earthing device
  • C.the main engine electric heating coils
  • D.the shaft generator
8

When will the spark erosion take place on the journal surface during each rotation cycle?

  • A.when the film thickness is at its minimum
  • B.when the film thickness is at its maximum
  • C.when the engine is on its compression stroke
  • D.when the engine is on its exhaust stroke
9

______engine ratings increase, the hydrodynamic oil film between the main bearing and journal surface is______.

  • A.The lower/thinner
  • B.The higher/the thicker
  • C.The lower/thicker
  • D.The higher/thinner
11

材料:

Spark erosion is caused by a voltage discharge between the main bearing and journal surface. The cause of the potential is the development of a galvanic element between the ship’s hull, sea water, and the propeller shaft/crankshaft.

The oil film acts as a dielectric. The puncture voltage in the bearing depends on the thickness of the oil film. With increasing engine ratings, the specific load in the main bearing is increased. his will reduce the oil film thickness, and enable the discharge to take place at a lower voltage level.

Since the hydrodynamic oil film thickness varies through a rotation cycle, the discharge will take place at roughly the same instant during each rotation cycle, i.e. when the film thickness is at its minimum. The roughening will accordingly be concentrated in certain areas on the journal surface. In the early stages, the roughened areas can resemble pitting erosion. but later, as the roughness increases, the small craters will scrape off and pick up white metal-hence the silvery white appearance.

Therefore, to ensure protection against spark erosion, the potential level must be kept at maximum 80 mV, which is feasible today with a high efficiency earthing device. If an earthing device is installed, its effectiveness must be checked regularly. Spark erosion is only observed in main bearings and main bearing journals. 

问题:

  • According to the paragraph one, a voltage between the main bearing and journal surface is produced by______.
  • A.propeller rotation
  • B.leakage from M/E electric control unit
  • C.a galvanic element
  • D.friction between the main bearing and journal surface
14

Bilges may be pumped______.

  • A.on the outgoing tide
  • B.overboard after dark
  • C.overboard through an anti-pollution equipment
  • D.anytime in an emergency, i.e. main engine lube oil failure
15

When off loading garbage to another ship, your records must identify that ship by name and ______.

  • A.home port
  • B.operator's name of record
  • C.official number
  • D.master's name
16

At an unsheltered(开放的) anchorage the chief engineer officer shall consult with ______whether or not to maintain an underway watch.

  • A.the engineer officer in charge of watch
  • B.the deck officer in charge of watch
  • C.the master
  • D.the chief mate
17

The officer in charge of the engineering watch shall notify the chief engineer without delay______.

  • A.in any emergency or if in any doubt as to what decision or measures to take
  • B.in the event of any impending(迫近) action in machinery spaces that may cause reduction in ship’s speed
  • C.when isolating and bypassing machinery to be worked on
  • D.co-operating with any engineer in charge of maintenance work
19

All of the followings are the detainable deficiencies under the SOLAS Convention except ______.

  • A.failure of proper operation of propulsion and other essential machinery, as well as electrical installation
  • B.failure of the proper operation of the main and auxiliary steering gear
  • C.failure of engineering watch arrangements to conform to the requirements specified for the ship by Administration
  • D.failure of the proper operation of emergency generator, lighting, batteries and switches
20

During PSC inspection related to the ISM Code, ______of the Safety Management System (SMS) should be carried out if clear grounds are established.

  • A.a less favorable inspection
  • B.a more favorable inspection
  • C.a less detailed inspection
  • D.a more detailed inspection
21

A shipboard oil pollution emergency plan is required of ______.

  • A.all vessels, regardless of size and commercial application
  • B.any barge or other ship which is constructed or operated in such a manner that no oil in any form can be carried aboard
  • C.an oil tanker of 150 gross tons or above, or other ship of 400 gross tons or above
  • D.an oil tanker of 400 gross tons and above, or other ships of 150 gross tons and above
22

The core(核心) item in the Oil Record Book Part I is______, and its main content is______.

  • A.Item A, BALLAST OR CLEANING OF FUEL OIL TANKS
  • B.Item B, DISCHARGE OF DIRTY BALLAST OR CLEANING WATER FROM FUEL OIL TANKS REFERRED TO UNDER SECTION(A)
  • C.Item C, DISPOSAL OF OIL RESIDUES(SLUDGE)
  • D.Item H, BUNKERING OF FUEL OIL
24

______, the second one will start automatically.

  • A.If the first stand-by set failed
  • B.If the first stand-by set fails
  • C.If the first stand-by set will fail
  • D.If the first stand-by set doesn’t fail
25

“AMIDSHIPS ” refers to______.

  • A.Back of the vessel
  • B.The middle portion of a ship
  • C.A backward movement of a vessel
  • D.Across the ship, at right angles to the fore-and-aft centerline
26

Why is it necessary to have routine testing of the cooling water?

  • A.To ensure that the proper residuals of treatment chemicals, as specified, are maintained all time.
  • B.To trace leakage in the cooling water system.
  • C.It is not necessary.
  • D.To detect the presence of contaminants in the water that may be injurious to the cooling system.
27

The flash point of a liquid refers to the temperature ______.

  • A.at which a liquid will give off inflammable(易燃的) vapors
  • B.at which a liquid will burn steadily
  • C.at which a liquid will explode
  • D.that a liquid must reach before it will flow readily
28

The necessity for administering artificial respiration may be recognized by the victim's ______.

  • A.vomiting(呕吐)
  • B.blue color and lack of breathing
  • C.irregular breathing
  • D.unconscious condition
29

When you notice oil on the water near your vessel while taking on fuel, you should FIRST ______.

  • A.stop loading
  • B.notify the senior deck officer
  • C.notify the terminal superintendent
  • D.determine whether your vessel is the source
30

The fire extinguishing action of CO 2 comes mostly from ______.

  • A.breaking the fire chemical chain reaction
  • B.smothering
  • C.cooling
  • D.isolating the heat from the fuel
31

To prevent the spread of fire by conduction, you should ______.

  • A.cool the bulkheads around the fire
  • B.remove combustibles from direct exposure
  • C.close all openings to the area
  • D.shut off all electric power
32

Which of the listed classes of fire would most likely occur in the engine room of a vessel?

  • A.Classes A and B
  • B.Classes B and C
  • C.Classes C and D
  • D.Classes A and D
33

When under maneuvering conditions with the machinery being manually operated the control unit or console should be ______.

  • A.automatically controlled
  • B.continuously manned
  • C.off power
  • D.continuously unmanned
34

Before the seas get rough, it is a good safety practice to______.

  • A.secure loose gear
  • B.move quickly about the ship
  • C.increase lighting
  • D.shutdown auxiliary equipment
37

The meat box temperature control circuit, as used in the ship service refrigeration system, is an example of ______.

  • A.two position control
  • B.single speed floating control
  • C.proportional(比例) control
  • D.reset control
39

A circuit breaker differs from a fuse in that a circuit breaker ______.

  • A.melts and must be replaced
  • B.is enclosed in a tube of insulating material with metal ferrules(环) at each end
  • C.gives no visual indication of having opened the circuit
  • D.trips to break the circuit and may be reset
41

The purpose of a main switchboard circuit breaker's reverse-power trip is to ______.

  • A.prevent main circuit overload
  • B.protect the circuit breaker blowout coil
  • C.prevent alternator motorization
  • D.prevent low voltage tripout
42

An advantage of DC motors over AC motors is that they ______.

  • A.are less expensive
  • B.require less maintenance
  • C.can be started across the line
  • D.offer a more effective means of controlling speed
43

The first requirement for logical troubleshooting of any system is the ability to _______.

  • A.collect all available data on a casualty
  • B.recognize normal operation
  • C.identify the probable cause of a symptom
  • D.isolate the faulty component
44

The load sharing characteristics of two diesel generators operating in parallel are mostly dependent on their governor ______.

  • A.load limit settings
  • B.idle speed settings
  • C.speed limit settings
  • D.speed droop settings
45

You are attempting to parallel two AC generators, and the synchroscope(同步器) pointer is revolving in the fast direction. This indicates that the frequency of the incoming machine is ______.

  • A.higher than the bus frequency
  • B.lower than the bus frequency
  • C.the same as the bus frequency but out of phase with it
  • D.the same as the bus frequency and the circuit breaker may be closed at any pointer position
46

Pressure drop in an operating hydraulic system is developed ______.

  • A.only by the pump as its primary function
  • B.by resistance to the fluid flow through the system
  • C.by the thermal input to the system's fluid
  • D.solely(单独地) by the charge applied by the accumulators
47

The frequency of an alternator at a given RPM is determined by the ______.

  • A.number of turns of wire in the armature(电枢) coil
  • B.number of magnetic poles
  • C.strength of the magnets used
  • D.output voltage
50

Mooring winch should be equipped with mechanical brakes which are capable of holding ______.

  • A.half the breaking strength of the mooring line
  • B.the full breaking strength of the mooring line
  • C.the maximum expected tension of the mooring line
  • D.50% over the working tension of the mooring line
52

Which of the listed problems could produce a high absolute pressure within a flash type evaporator?

  • A.production of high salinity distillate
  • B.seawater feed temperature below 165℃
  • C.a leak in the first stage demister
  • D.a cracked distillate pump vent line
53

The ______ is used to burn oil sludge.

  • A.clarifier
  • B.oily water separator
  • C.incinerator
  • D.distiller
55

Most marine biological sewage treatment plants consist of all the following statements except ______.

  • A.aeration tanks
  • B.settling tanks
  • C.disinfection agent
  • D.anaerobic bacteria(厌氧细菌)
56

Which of the problems listed could cause erosion of the expansion valve disks and seats?

  • A.Overcharging the system with refrigerant
  • B.Faulty compressor suction valve
  • C.Failure of the high pressure cutout
  • D.Flash gas formed in the liquid line
57

Sludge may be formed in the oil in the crankcase of a reciprocating air conditioning compressor as a result of ______.

  • A.refrigerant bubbles in the lube oil
  • B.refrigerant reducing the lube oil viscosity
  • C.oxidation of the lube oil from overheating
  • D.reducing the floc or cloud point of the oil
60

A spur gear pump should be operated with the discharge valves ______.

  • A.slightly opened
  • B.throttled
  • C.fully opened
  • D.halfway opened
61

A centrifugal pump may fail to deliver water when first started if the ______.

  • A.water seal pipe is plugged
  • B.pump is not primed
  • C.seal ring is properly located
  • D.impeller is flooded
62

A firebox explosion in an automatically fired auxiliary boiler may be the result of ______.

  • A.excessive purging before lighting off
  • B.insufficient trail for ignition period
  • C.a faulty transformer in the ignition circuit
  • D.insufficient purging before lighting off
63

Pitted reduction gear teeth having a deep blue color with evidence of overheating have been operated with ______.

  • A.excessive speed
  • B.improper warm-up
  • C.extreme misalignment
  • D.inadequate lubrication
64

A bypass line provided around a waste heat auxiliary boiler in a diesel engine exhaust system, may be used to avoid boiler ______.

  • A.corrosion at low engine loads
  • B.erosion at high engine loads
  • C.overload at high engine loads
  • D.scaling at all exhaust temperatures
65

Modern marine diesel engines equipped with mechanical fuel injection operate on a combustion phase within the cycle which is ______.

  • A.entirely constant pressure
  • B.entirely constant temperature
  • C.a combination of constant volume and constant pressure
  • D.a combination of constant temperature and constant pressure
67

A controllable pitch propeller on a diesel driven vessel eliminates the need for ______.

  • A.friction clutches
  • B.disconnect clutches
  • C.reversing gears
  • D.reduction gears
68

If some of the cylinders are not firing, the ones affected may be determined by watching _____.

  • A.the exhaust temperature
  • B.the exhaust pressure
  • C.the governor
  • D.the fuel flow meter
71

Fuel has been injected but ignition fails. The possible cause may be ______.

  • A.slightly leaky exhaust valve
  • B.increased scavenging air temperature
  • C.engine cylinders not scavenged sufficiently
  • D.too much water in the fuel oil
73

The amount of fuel delivered by a helical plunger fuel injection pump is controlled by ______.

  • A.varying the pump discharge pressure
  • B.varying the pump return pressure
  • C.rotation of the pump plunger
  • D.rotation of the pump barrel
74

Prolonged operation of a diesel engine with a closed cooling water system, at lower than normal designed operating temperatures can ______.

  • A.increase power output
  • B.decrease lube oil viscosity
  • C.eliminate fuel knock
  • D.cause sulfuric acid formation
76

An over-speed safety device is usually fitted to a generator engine for ___ in the event of over-speed.

  • A.stabilizing the ship speed
  • B.increasing the fuel pump setting
  • C.braking the crankshaft
  • D.cutting power off the engine
77

The relative air pressure in the inlet manifold of a turbocharged diesel engine is usually ______.

  • A.greater than the average exhaust manifold pressure
  • B.less than the average exhaust manifold pressure
  • C.greater at the turbine wheel than at the impeller
  • D.greater at reduced engine speed
78

During the valve overlap period, the exhaust pressure of a turbocharged four-stroke/cycle diesel engine must be less than the intake manifold pressure to ensure ______.

  • A.effective cylinder scavenging and cooling
  • B.constant pressure from the turbochargers
  • C.cooler operation of the exhaust system
  • D.effective constant pressure for turbocharger operation