轮机部三管轮考试模拟题5(轮机英语)

Lube oil filters remove contaminants more efficiently if the oil being filtered is _____.

The bed-plate is secured in the longitudinal direction by means of bolts known as _____.

_____, the engine must be stopped immediately.

When liquid reaches the compressor of a refrigeration system through the suction line, the condition is called _____.

______ means the person designated by the Company for ensuring that a ship security assessment is carried out; that a ship security plan is developed, submitted for approval, and thereafter implemented and maintained and for liaison with port facility security officers and the ship security officer.

Which system(s) in the hydraulic systems of crane always hold(s) single side of load?

Which one of the followings might not be employed to create vacuum for flash type evaporator? .

A diesel engine will lose power if fuel injection occurs too late in the cycle, because the _____.

The heat identified by only a change in temperature is known as _____.

______ means the person designated as responsible for the development, implementation, revision and maintenance of the port facility security plan and for liaison with the ship security officers and company security officers.

A refrigerant with oil in solution has a _____.

Immediately after starting a diesel engine, normal raw water and jacket water pressure are indicatedHowever, the jacket water temperature continues to rise, if there is no change in the sea temperature, you should suspect______.

In a two-stroke/cycle diesel engine, the exhaust gases are expelled from the cylinder by the____________.

Universal motors will operate on AC or DC current, and are generally found in _____.

A ground in an electrical circuit outside the engine room _____.

The defective place in the furnace should be _____ with fire bricks.

Which of the following statements is least likely to cause the ignition of fuel vapors?

The most common type of AC service generator found aboard ship is the stationary _____.

Bunkering shall be terminated if there is a .

Dirt in a fuel oil system of a diesel engine can cause __________.

Hydraulically, servo-operated, automatic, change over valves, utilized in a two ram hydraulic steering gear, serve to .

It is very necessary that each cylinder _____ before the charged air is compressed.

According to Maritime Labour Convention, 2006, the maximum hours of work shall not exceed .

The most effective method in removing water from diesel fuel oil is by_______.

The _____ chamber is enclosed between the cylinder head and piston.

The main purpose of changing main engine to electronic controlled is not to .

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

A water pump can not supply water after startingIt may be caused by _____.

Cold clearances between the skirt of an aluminum piston and the cylinder liner is about ____________________.

_____ are mounted on and bolted to the bed-plate cross girders.

An accidental path of low resistance, allowing passage of abnormal amount of current is known as a/an_____.

A diesel engine crankcase ventilation system _____.

“A centrifuge consists of an electric motor driving a vertical shaft on the top of which is mounted the bowl assembly.” According to this sentence, we can know that is mounted on the top of the vertical shaft.

Cylinder linings constructed as an integral part of the block, are characterized by which of the following disadvantages? .

The projection on a shaft designed to change circular motion into up and down or back and fore motion is called _____.

The main bearings are provided with thin-walled _____, lined with a copper-lead alloy.

A dirty intercooler on the ship service air compressor will result in _____.

Which of the conditions listed represents the greatest effect of excess frost accumulation on the evaporator coils?

On a turbo-charged, medium-speed diesel engine, which of the following problems is an indication of a restricted air intake passage?

"Flooding back" is a condition where the liquid refrigerant _____.

What type of electric motor is most commonly used on board ship?

The Total Base Number (TBN) value of diesel engine lube oil refers to its ability to .

Before starting the engine the air bottle should be _____.

A fire in an electrical generator is considered to be ___.

The following options are all the functions of lubricating oil except .

Cooling of engines is achieved by circulating a cooling liquid around internal _____ within the engine.

An International Ship Security Certificate shall be issued for a period specified by the Administration which shall not exceed _______.

The Pollution Prevention Regulations require that all oil spills in United States water be reported immediately to the _________.

Diesel engine jacket water is used in the distillation process as the _____.

When two D.Cgenerators operate in parallel, they are protected against motorizing by .

The function of the hydraulic telemotor transmitter used in an electro-hydraulic steering gear system is to _____.

In the variable delivery pump, moving the spindle more from the central point will cause ______ fluid to be pumped and consequently ______ pressure is generated to drive the rams.

It is necessary to remove _____ from the cooling water spaces to improve heat transfer.

Too much excess air is ______ because the heat generated is being lost through the exhaust trunking instead of being made used of in heating the water to produce steam.

Which of the following machinery space operations is required to be logged in the Oil Record Book?

Put in the engine turning gearNow examine thoroughly inside the crankcase to _____ that everything is correct.

The cross-head shoes are white metal _____.

Which one is true as regards to the hardhat according to the passage?

When securing a flash-type evaporator for an extended period of time, you should _____.

Fuels of high quality with their earlier ignitions will cause higher _____ pressure in cylinders of a diesel engine.

The function of the piston compression rings used in a diesel engine is to _________.

In the voyage, when carrying out abandon ship drill, should be test every time.

The crane is usually mounted on a pedestal to offer adequate _____ to the operator.

The control rod of a steering gear pump is attached at its outer end to _____.

Cylinder oil is a high viscosity mineral oil, with a _____ machined to the anticipated sulfur content of the fuel.

I find _____.

If a small fire initially breaks out in the engine room bilges, in which of the following sequences should the fire extinguishing agents or systems be used?

____ can cause oil flow from water outlet of a separator.

Valve overlap is the period during which _____.

Air scavenging of a diesel engine cylinder__________.

During the PSC inspection, under the provisions of SOLAS 74, which one may not be regarded as clear grounds for ships’ detainment?

As the refrigerant passes through the valve orifice, its pressure is reduced and part of the refrigerant turns into _____.

A fuse that blows often should be replaced only with a fuse of _____.

In a four-stroke/cycle diesel engine, after the completion of the power stroke, the piston will move________.

Foaming of the oil in a refrigeration compressor crankcase is caused by _____.

When reentering an engine room that has been flooded with CO2, the investigating team should initially_____.

White smoke exhausting from a diesel engine can be caused by ________.

Attempts are made to eliminate axial thrust in centrifugal pump by _____.

Humans are still needed to monitor the condition of the boiler all the time the latter is operated, ______ it is just to acknowledge an alarm buzzer or flashing light in a control room.

Which of the following conditions would cause carbon deposits to form. in the piston ring belt of a diesel engine?

The ____ should be gradually reduced after F.W.E.

In a typical fuel system, the oil is stored in _____ in the double bottom.

With the crank in position in the engine, some measurements can be taken by a special bridge gauge and _____.

Diesel engine mufflers or silencers reduce the engine exhaust noise by ____.

Which of the listed operations will cause an automatically controlled refrigeration compressor to restart?

Centrifugal pumps can be designed with a number of impellers _____ to attain a high final delivery pressure.

For a continuous operation diesel engine, a duplex filter unit would be the best arrangement because _____.

The cylinder contains a great weight of air and is capable of burning a great quantity of fuel at_____.

What is the first thing you would check on taking over a watch?

The _____ in the injector will lift at a pre-set pressure which ensures that the fuel will atomize once it enters the cylinder.

The upper section of a piston is called the _______.

The lubricating oil is pumped from the drain tank, very often with _____ in the suction line.

The power developed by a large slow-speed main propulsion diesel engine is dependent upon the _______.

The process of loop scavenge is that the exhaust will be via ports _____ the air ports and controlled by the same piston.

Strainers, sometimes called _____, are devices designed to prevent the passage of unwanted solids into or further along a system.

An alternator switchboard has a synchroscope and synchronizing lamps, if the synchroscope is broken, which of the steps listed is the most essential before an alternator can be paralleled with the bus _____.

Immediately after any diesel engine is started, the engineer should check the _____.

The fire of electrical equipment is classified as fire.

If a hydraulic governor has been refilled with oil, the engine should be operated until it reaches normal temperaturethen the air should be purged, and the_________.

In order to keep the oil film on the cylinder liner during the running-in period, the piston rings are slightly rounded .

The port state control inspection is carried out on the basis of the following international conventionsAmong them, which one was not set by IMO?

The possibility of damage from operating a diesel engine at critical speeds is reduced by the use of_____.

Which of the following statements is correct regarding an oil with a high viscosity index?

In a turbocharged four-stroke/cycle diesel engine, the exhaust valve remains open until after top dead center and the intake valve opens before top dead center to_______.

Fuel oil is pumped by means of _____ from the bunker tanks.

For a flash type evaporator, a demister is located the condenser.

During the watch at sea, where situations occur in the machine apace which may affect the speed maneuverability, power supply or other essentials for the safe operation of the ship____ should be informed as soon as possible.

For the intermediate condition, thermostats must be correctly set _____.

What is the purpose of sub cooling R-12 in the condenser? .

Poor combustion in a diesel engine can be caused by _______.

Remote control means that _____.

What is the best way of stopping an over-speeding diesel engine?

With ducted air conditioning systems, the modern tendency is to use____.

The fuel supply system to an automatic auxiliary boiler, will be automatically shutdown if the boiler _____.

Lubricating oil for an engine is stored at the bottom of the _____, known as the sump or in a drain tank located beneath the engine.

______ means a plan developed to ensure the application of measures designed to protect the port facility and ships, persons, cargo, cargo transport units and ships stores within the port facility from the risks of a security incident.

Pressure in an operating hydraulic system is developed _____.

Generally, runaway means such situation when the speed main engine exceeds the rating speed by its ____.

For which of the listed classes of fire combinations would carbon dioxide be most suitable as the extinguishing agent _____.

In order to find out which lifeboat you are assigned, you should look at the _____.

A simple pumping system consists of a suction branch, a pump and _____.

The Master should call ____ for permission to use chemical agents in response to oil pollution into sea.

The refrigerant gas returning to the compressor should be _____.

At normal sea going, we use _____ instead of donkey boiler.

Hydraulic machinery failures are commonly caused by contamination of the hydraulic fluid and _____.

To parallel an incoming machine to a running machine therefore it is necessary to ensure firstly that _____.

The construction of the main propulsion engine lube oil sump should .

Air compressor receivers should be “blown down” at least _____.

On top of scavenging air box is mounted a strong cast iron frame. for each cylinder known as_____.

The film of oil between the rings and the liner is not only essential for the lubrication but also _____ achieving a gas seal.

If the bowl of a disk type centrifugal purifier when operated as a separator is not primed, the .

If a severe leak develops in the electro-hydraulic steering gear unit is necessary when .

When the machinery spaces are in the periodic unmanned condition, shall be immediately available and on call to attend the machinery space.

Abnormal crankpin bearing and piston skirt surface wear indicate_________.

An ammeter should be used to measure _____.

The pump has a constant stroke and the amount of fuel delivered is regulated by rotating _____ which has a specially arranged helical groove cut into it.

In the process of _____, liquid changes into gas.

In order to start a large, low-speed, main propulsion diesel engine on high viscosity fuel after an extended shutdown, the _______.

During the PSC inspection, under the provisions of SOLAS 74, which one may not be regarded as clear grounds for ships’ detainment?

In order to change the direction of rotation of a D.Cmotor _____(1) the field leads must be changed; (2) the input leads must be changed

Which of the following statements describes one of the functions of the ballast system?

When restarting a heavy fuel diesel engine that has been stopped for some time, the engine should_______.

The most common instrument used to measure diesel engine exhaust pressure is the _____.

Supply the ______before starting an air compressor.

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

In readying an auxiliary water-tube boiler for a routine hydrostatic test, which of the following procedures should be undertaken prior to filling the boiler with fresh water?

The load on the crosshead pin is always ______, so it is the ______ half of the bearing which is subject to wear.

The lower end of each piston rod is reduced in diameter to fit a bore in the cross-head, this being secured to the piston rod by _____.

The drive motor will have a brake arranged to fail-safe, i.eit will _____ the load if power fails or machine is stopped.

"Cast iron has poor corrosion resistance to sea water, especially in the presence of bronzes." Implies_____.

The power and torque capability of the steering system must be such that the rudder can be swung from ______ one side to______ the other side with the ship at maximum speed.

One of the purposes for water cooling the exhaust manifold in marine diesel engine is to _______.

Distilled water is now largely used on board, this may be corrosive (due to presence of dissolves CO2) and _____ to the taste.

______ is put into use in the late years to maintain a preset tension in a mooring line after a ship has been tied up at a pier.

Reducing the clearance between a valve stem and rocker arm will result in the valve _____.

In the navigation, cause the shafting over load most easily.

The operator of electrical motors should keep a constant check on the loads they carry because _____.

The purpose of the commutator and brushes on a D.Cgenerator is to .

One of the reasons that causes oil flowed from sludge outlet of a self-cleaning purifier is .

Auxiliary diesel engines can be automatically shut down as a result of ___________.