轮机部三管轮考试模拟题3(轮机英语)

Worn main bearings in a diesel engine can result in ______________.

In motor ship, _____ is often used to recover some of the heat carried in the exhaust gases from the main engine.

An indication of a diesel engine air intake being partially clogged, is _____.

Which of the following marine examples belongs to the open loop control system?

Large crosshead type engine generally has two lubrication systems, a function performed only by crankcase oil system is .

A centrifugal fuel oil purifier should be shut down if ________.

The following preparations are essential for any ______ of marine diesel engine before it may be started.

The scale trap is located between the .

Exhaust pyrometer readings provide an indication of the .

In a medium speed diesel engine, a trunk type piston may be cooled by_______Ioil circulation though passages in the piston crown IIheat transfer through piston rings and liner wall

Before starting a diesel engine, you should always __________.

“Stand by an engine” means _____.

The SMS should provide for specific measures aimed at promoting the _____ of equipment or systems the sudden operational failure of which may result in hazardous situations.

_____ the cylinder will contain a great weight of air and will be capable of burning a great quantity of fuel.

Ammonia when used as a refrigerant is valuable because of its high efficiency, it is however _____.

You are attempting to parallel two AC generators, and the syncope pointer is revolving in the fast directionThis indicates that the frequency of the incoming machine is _____.

The oxidation by-products forming in diesel engine lube oil can cause ___________.

When finish work on the oil separator, you should____ firstly.

The cetane number of a diesel fuel oil indicates its________.

A condenser is a vessel in which_____ is deprived of its latent heat of vaporization and so changed to its liquid state.

To add refrigerant to the high side of an air conditioning system, you should introduce the refrigerant through the .

One of the main purposes of refractories in a boiler furnace is to____.

AC voltmeters are generally calibrated to read the _____.

Cooling makes the engine metals their mechanical properties.

With No.1 and No.2 alternators running in parallel and the kW loads equally shared, one alternator is drawing much higher current than the otherWhat does this indicate?

Which of the following statements about pump operations is NOT a correct statement?

The part of the shipboard electrical system used to control the distribution of power to the branch circuits, is the _____.

Heavy wear in a particular area of the inner circumference of a packing ring may be caused by _____.

Fuel injection valves should be taken out, cleaned, and lifting checked every _____.

The air supplied to the cylinders by a turbocharger is often reduced in volume by a/an _________.

Prior to lighting off a cold automatically fired auxiliary boiler, you should _____.

A viscosity regulator used for an engine is usually provided in order to _____ for an engine burning heavy fuel oil.

Which factor of the following affects not only the fuels combustion but also the engine’s maintenance?

A vacuum is initially established in the first and second stages of a low pressure evaporator by the use of __.

The minimum number and capacity of bilge pumps and fire pumps and their distributing within the ship is governed by _____.

Fix the fuel injector into _____ after repair.

Fuel has to be injected into the engine at a high pressure so that it _____ correctly.

After he ______ the test, the engineer put down the results.

_____ is the actual value of the controlled condition.

_____ the engines, the diesel engine is_____ used engine on board.

If separating effect is not good, which measure should be taken ____.

After taking on fuel oil, the hoses should be disconnected and _____.

The general purpose of a heat exchanger is to _____.

Excessive scale formation in a distilling plant may result from _____.

Which of the following statements is correct with regards to the operation of a centrifugal cargo pump?

We generally take the convention of safety of life at sea adopted in 1974 as a completely new convention, the reason is .

In a diesel engine, fuel must be broken up into a spray of fine droplets to _____.

According to Annex I of MARPOL 73/78, oily waste from cargo tanks of oil tankers can be discharged when the ship is more than_________ away from the nearest land.

One distinct advantage of flash type evaporators, as compared to most other evaporators, is that in a flash evaporator _____.

Which of the following must be eliminated to prevent accidents?

The main operating characteristic of diesel engines which distinguishes them from other internal combustion engines is the ________.

Low compression pressure in a diesel engine is caused by___________.

There is an injection pump for each cylinder, which is usually operated once every cycle by _____ on the camshaft.

When occurring a fire in the scavenge air box, the following measures should be taken except for .

Diesel engine lube oil can become contaminated as a result____________.

Who will mainly handle the negotiation during store and spare parts transaction?

During sea trial, the main engine well be kept run at load.

Turbocharged four-stroke/cycle diesel engines utilize valve overlap for_________.

The scuppers should be plugged _____.

As for turbine oil, contact with water in the form. of steam will be inevitable so good _____ properties will be essential.

Increasing differential pressure of an oil filter indicates that _____.

Electrical failures in motors are caused by the breakdown of insulation, which may be caused by _____.

The____ of the telemotor is built the steering wheel console and located on the bridge.

Due to _____ action of pistons some relative motion between parts in contact in the coolant supply and return system must occur.

The rate of wear on a cylinder liner depends on the ＿.

Which of the precautions listed should be observed when taking on diesel fuel?

Which of the following problems could cause the high pressure cutout switch to shut down the compressor in a refrigeration system?

If the jacket water temperature of an operating diesel engine suddenly rises above normal, the cause can be attributed to _____.

A number of biological sewage treatment plants are in use at sea but nearly all work on what is called the extended aeration processBasically the consists of oxygenating the liquor by bubbling air through itAccording to the above two sentences, the word "this" means _____.

Which is false about engine trials?

Diesel engines are started by supplying _____ into the cylinders in the appropriate sequence for the required direction.

Mooring winches are often combined with _____ units so that one prime mover drives both.

Here some oil in the oily water separator, as a result of its lower _____, will separate and rise into the oil collection space.

Which of the following definitions can be used to define the term ‘offset’ as a characteristic of controller action?

Which one is not the normal operation for boiler shutdown?

The correct procedure for giving an auxiliary boiler a bottom blow, is to begin .

During port state control inspection, the detention report should be made in accordance with the format in appendix 5 of ______ Resolution A 787(19).

For a main diesel engine the lube oil in the bearings is drawn from _____, usually located in the bedplate.

If a ship is required by the Administration to set, or is already at a higher security level than that set for the port it intends to enter or in which it is already located, then the ship shall advise without delay, the ____ of the Contracting Government within whose territory the port facility security officer of the situation.

The treatment of the fuel oils involves storage, heating, filtering and .

If over a period of time, the oi1 film partially disappears, so that dry areas are formed on the cylinder wall, these areas and the piston surfaces will by frictional interaction, become finely scuffed and hardened, i.egood mirror surface" will have deterioratedWhat condition of the piston rings can result in this phenomenon?

_____ allows for expansion and water make up in the water cooling system.

In each cylinder cover there are two or three holes for _____.

The effect of high vapor superheat in a refrigeration system, is a/an _____.

The purpose of the purge valve at the top of the condenser in a refrigerating system is to .

To avoid excessive pressures in the fuel oil filling system during bunkering, you should _____.

Doors are generally formed in the _____ of the both in-line and Vee engines to give maintenance access to the crankshaft main and connecting rod large end bearing.

Class A fires are best extinguished by quenching or cooling with _____.

0271The word “critical” in the sentence “This is a critical period as any loss of propulsion, or steering, can lead to collision, grounding, or other damage to the ship.” can be best replaced by _____.

The cast iron guide-ways for _____ are attached to the top section and seal off the crankcase.

When centrifuging heavy fuel oil, an important factor to consider is the _____(1) flow rate; (2) viscosity of the fuel oil.

In most pumps and pump motors overpacking the ball bearings full of grease will result in ____.

Excessively warm water leaving condenser may be caused by .

The second stage feed-water temperature and shell absolute pressure in a multistage, flash type, distilling plant is ___.

Where should muster lists be posted?

To equalize the power factor of two alternators operating in parallel, the _____.

Which of the listed statements is correct concerning refrigeration systems?

If the compression rings on a diesel engine piston become stuck in the ring groove, the cause may be due to ______________.

Which of the following operations must be entered on the Oil Record Book Part I? IRoutine discharge at sea of bilge water containing oil from the machinery spaces IIBunkering of fuel oil

The total resistance of a parallel circuit is always _____.

Compressed air is supplied by air compression to _____.

The flash point of a petroleum product is an indication of its .

Misfiring in a diesel engine at light loads can be caused by____.

CFC refrigerants exposed to high temperature or direct flame, will decompose and may produce .

A spring-loaded centrifugal flyweight governor responds to reduced engine load with an immediate increase in ____.

Before attempting to put out a class “C” fire involving an electric-driven centrifugal pump, you should FIRST _____.

Cocks and valves control or interrupt flow, and have internal passages arranged so that they can be restricted or closed: in cocks, by rotating the plug, and in valves, by lowering, raising or rotating a disc in relation to a seating surfaceAccording to the above sentence, which of the following statements is not true?

The process of supplying a diesel engine cylinder with air at a pressure greater than atmospheric is called__________.

Large marine diesel engines of crosshead construction generally have two systems of lubrication: a total loss system feeding the _____ and a recirculation system lubricating the running gear and cooling the piston.

The exhaust ports are located around the lower part of the cylinder liner, ______ the products of combustion are driven by scavenging air.

The sub-multiple prefix "milli" (m) means _____.

The selection of a lubricating oil depends to a great extent on the operating conditions, _____.

The speed of the camshaft in a two-stroke/cycle diesel engine, running at 950 RPM, is _____.

The device used to limit engine torque at various engine speeds is called a ________.

Before an auxiliary boiler is shutdown for an extended period of time, the water in the boiler should have a pH value of _____.

After receiving the stores you should sign on the ____.

The replacement piping for diesel engine high pressure fuel systems must be the same length and diameter as the original piping to _____.

Fuel oil tanks must be fitted with _____ that can be closed rapidly and remotely in the event of an emergency such as a fire.

Smaller engines can be made more rigid than large ones and may not have _____.

If the compressor runs continually, the cause might be the .

Scuffed cylinder liner wearing surfaces in a diesel engines can result from ________.

The purpose of the ISM Code is to provide _____ standard for the safe management and operation of ships and for pollution prevention.

To correct a hunting problem in a main propulsion diesel engine hydraulic governor, you should ______.

Which of the following terms could be applied to the simple definition "the energy of motion?

The term _____ refers to one complete sequence of operations required to produce power in an engine.

The _____ engine is used for alternators and some times for main propulsion with a gearbox to provide a propeller of between 90 to 120 rpm..

Gear pumps are _____ type because they discharge a near constant amount of liquid regardless of pressure.

If over a period of weeks the air-box pressure of a turbo-charged, diesel engine, operating at full load, appears to be dropping off, the cause can be _____.

Engine coolant accumulating in the diesel engine lubricating oil can result from a _______.

The latent heat of water vapor in air is dependent upon the _______.

A vessel is equipped with two ships service generatorsGenerator #1 is rated at 900 kW and generator #2 is rated at 600 kWDuring parallel operation, with a hotel load of 1,000 kW, what should be the kW load on generator #2 _____.

______ is a function of the reactive / resistive characteristics of the load items and cannot be adjusted by manipulating the alternator control devices.

Inspection of a vessel’s propeller during dry-dock should include .

The ash content of a fuel oil is significant to the operating engineer because it _____.

A class "C" fire would most likely occur in the _____.

The main purpose of warming the parts of the main engine is ____.

Before "stand-by" is rung on the engine telegraph, it is usual to give the main engine _____ ahead and astern.

The diesel engine consumes considerably less fuel than the steam engine for equal output, ______ enables a motor-ship to load more cargo.

In a diesel engine, exhaust valves open before the intake ports are uncovered to _______Ⅰreduce pumping losses Ⅱreduce back pressure

If two ACgenerators are operated in parallel, the load is distributed evenly by .

The ship should be operated by a company which is issued a(an)______relevant to ship.

An increase in crankcase pressure generally indicates________.

The purpose of engine stand-by is that ____.

____, where a ship is refitted for a different use.

The purpose of an after-cooler is to_____.

The separate supplies are connected in either star or delta formationThe star formation is most commonly used and requires_____ slip-rings on the alternator.

Before a marine diesel engine is started the cylinders and pistons must be _____.

More than one stage of evaporation can take place by admitting the sea water into chambers with progressively _____ pressure in the flash evaporator.

A four-stroke cycle, turbocharged, 1000 horsepower diesel engine has been operating under loadThe load suddenly increases, causing excessive black exhaust smoke, and a rapid rise in the lube oil temperatureIn response to this condition, you should:

The static suction head of is the ______.

If a crankcase explosion has occurred in a diesel engine, and the crankcase remains intact, which of following precautions should be observed?

is considered to be one of the detainable deficiencies under the STCW Convention.

Black smoke exhausting from a diesel engine indicates____.

The total starting air capacity required for reversible main engines is to be sufficient for at least _____.

To avoid impingement attack, care must be taken with the water _____ through the tubes of the heat exchangers.

If a heavy sea strikes the rudder, the shock is transmitted through the tiller to _____.

As soon as you hear the fire and emergency signal, you should ensure that the _____.

The cooling water temperature _____ over a period of 8 hours, and then shut down.

When a ship is fully loaded, it needs to prevent the main engine to be While a ship is fully empty, it needs to prevent the main engine to be .

____ can be used to prevent hydraulic system overloaded or keep the pressure of oil outlet from pump constant