海船船员考试轮机部三管轮模拟题9(轮机英语)

Electric insulation is made of organic substances and so gradually _____ with age.

The oil discharge monitoring system in the oil tanker vessels is used for detecting the amount of oil discharged overboard to ensure that it does not exceed .

If you were inspecting the valve springs on an auxiliary diesel engine, your best indication of impending spring failure would be ________.

Which of the following item is the cause to the damage of parts and excess wearing?

Which of the following statements is true concerning Halon 1301 fire extinguishing equipment?

The above-mentioned damage has caused from improper fitting so that we ______ you _____ for making compensation.

The shaft and spare parts _____ should be well greased in order to avoid corrosion.

High exhaust temperatures from all of cylinder of a turbocharged, four-stroke/cycle diesel engine can be caused by an____.

As engine RPM is increased from idle speed to full load speed, which of the conditions listed will decrease?

For a diesel engine, when the piston is at the _____, the clearance volume is the largest.

To guarantee that a reduction gear bearing is receiving proper oil supply, you should check the .

In the common rail system, excessive pressure in the header may be caused by _________.

The normal color of the exhaust gas of the diesel will be ____.

The internal part of boiler should be welded by yard if found _____.

The crane jib is raised and lowered by means of .

A fluid coil will ____large quantities of heat when it changes state from a liquid to a vapor.

If a voltmeter is connected across a line, it must be protected with a .

The amount of fluid delivered by a screw pump can be regulated by _____.

Which of the following methods is used to prevent throttling of compressed air through the diesel engine air starting valves?

Before liquid can flow into a pump, the air in the suction line must be _____ sufficiently to cause the liquid to flow into the suction chamber.

Marine four-stroke diesel engines are mainly _____.

A diesel engine piston crown can crack from __________.

This machine ______ out of order very often, but now it works well.

On a multistage flash-type evaporator, the flash chamber is ___.

Among the basic categories of equipment, which of the following are used to allow the hydraulic energy to be controlled?

The fuel injector injects a fine spray of fuel into the hot air and combustion _____, producing much high pressure in the gases.

When attempting to start a main propulsion diesel engine, the engine, the engine turns at the proper speed but will not startYou should check the_______.

Which of the following operations need to be entered on the Oil Record Book Part I? (1) Ballast of fuel oil tanks; (2) Condition of oil discharge monitoring and control system.

The principal purpose of sub-cooling liquid refrigerant prior to its entering the expansion valve is to _____.

In four strokes engine, the cycle of events is completed in four strokes of _____.

The timing of diesel engine air starting valves is controlled by__________.

_____ shows 1.2 meter and the specific gravity of the oil is 0.96According to the measuring scale, that makes 150 tons.

A gradual decrease in the discharge pressure of an operating hydraulic pump can be caused by _____.

Why should you wear a self-contained breathing apparatus before entering the engine room after the fixed CO2 system has been discharged to combat a major fire?

The camshaft on a four-stroke/cycle diesel engine provides a means to operate the _____.

On a diesel engine equipped with a hydraulic speed control governor, hunting in many cases can be corrected by adjusting the _______.

Which of the actions listed should be taken by the engineer on watch when the general alarm is sounded continuously for 10 seconds?

Clogged diesel engine fuel oil filters can cause＿.

Generator brushes are staggered to .

Vessel propellers are classified as being right hand or left handA right hand propeller turns clockwise when viewed from_____.

The hydraulic oil most likely to thin out when hot and thick when cold would have a viscosity index of .

During the watch keeping at sea, routine adjustments should be ____.

The four basic components of a fire are fuel, heat, oxygen and a chain reactionWhich of the following statements best describes what must be eliminated to extinguish a fire?

Which one is not important for your safety on board ship?

Late fuel injection in a diesel engine is indicated by low firing pressure with _________.

The four strokes are called suction, compression, expansion and exhaust, but only _____ stroke provides the power to drive the ship.

Which of the listed factors will indicate the most about the ability of a fuel to ignite in a diesel engine?

The cylinder covers and the liners are bolted together by means of _____.

Diesel fuel vapors _____.

In general, the oil mist defectors include a base plate with air blast pumpThe function of air blast pump is to ____crankcase

The additional mark _______ in the Classification Certificate for Machinery represents that personnel are watching at engine assembly control station and monitoring all machinery and electronic devices.

If a large difference exists between the compressor discharge pressure and the pressure corresponding to the existing condensing temperature in a refrigeration system, you should _____.

When fuel oil is accidentally missed with lube oil which of the following processes can be used to separate them? Ifiltering IIsettling

What type of rotor is used in split-phase motors?

The minimum amount of oxygen required to support life is __ .

Improperly fitted piston rings in a diesel engine can cause______.

Which one is the ‘clear grounds’ for a more detailed inspection?

A substantial increase pressure could be an indication of a/an _____.

With reference to a rotary vane steering gear system, which one of the following statements is true?

Oil will lubricate these parts _____ effectively than water.

When stand-by engine instructions have been received, it’s necessary to make it sure that all valves in the various systems are .

When the heavy fuel oil is heated to achieve the viscosity of 10-15 cSt, may occurTo avoid this, a system is used in most occasions.

The main factor determining the output of each cylinder is the cylinder _____.

_____ can be operated independently or locked together and operated as a twin-job cranes of double capacity.

In a refrigeration system, foaming of the crankcase oil may cause the _____.

The period when both inlet valves and exhaust valves are open is referred to as _____.

The control mode in which the final control element is moved from one of two flexed positions to the other is known as _____.

If the analysis of used lube oil indicates a high content of iron particles, this could indicate_____.

The most suitable pump for oily water separator feed duties is _____.

Maintaining the proper fuel oil temperature will result in .

Which of the following statements represents the correct action to take when three crew members discover a fire?

If the high-pressure switch on the compressor opens and stops the compressor a possible cause could be:

Loss of lubricating oil pressure to the main propulsion diesel engine will actuate a/an _____.

Air line lubricators are used in compressed air systems to lubricate _____.

Fuel oil injected into the cylinder of a diesel engine just after the piston passes top dead center, will_______________.

While flowing through the volute in a centrifugal pump, part of the _____ energy of the liquid is converted to _____ energy.

Each cylinder is closed at the top by a _____, made of a special heat-resistant steel.

, where the ship is docked for hull coating renewal, and for any other required underwater work to be carried out, when the opportunity is taken to make other repairs.

If clearance between a piston and the cylinder wall is excessive, piston slap will occurThe slap itself is caused by _______________.

While reading the muster list, you see that "three short blasts on the ships whistle and the same signal on the general alarm bells" is the signal for _____.

The thrust from the propeller to the hull of the ship is transferred by .

In a refrigeration system, which of the following statements describes the actions occurring when a solenoid valves, used in conjunction with an unloader head is energized? .

Which statement about diesel engine combustion is true?

Engine fuel pump index is _____.

Oil control rings used in two-stroke/cycle diesel engines are located near the bottom of the piston skirt in order to ________.

Which of the following devices is common to both mechanical and hydraulic governors?

_____ of the A-frames there is a strong cast iron frame. called the scavenging air box.

The____ should be shut once upon F.W.E.

Which of the materials listed is used as the dynamic seal material on mechanical seals installed on most centrifugal pumps used in water service?

A transformer in an electric circuit serves to _____.

The requirements of the ISM Code may be applied to _____.

_____ is provided to alternators, in the event of prime mover failure to ensure that the alternator does not act as a motor.

The film of oil between the rings and the liner is not only essential for the lubrication but also plays an important part in achieving _____.

The percentage of impurities in a specific fuel oil sample is determined by _____.

A dirty intercooler on an air compressor will cause _____.

The ability of an oil to separate cleanly from an oil and water mixture is referred to as its _____.

The plunger is machined to very fine tolerances, as is the matched ______ in which it reciprocates.

Friction, engine wear and oil consumption in a diesel engine are directly related to the _____.

In an ordinary four-stroke engine the exhaust valves open _____

When the steering gear is in operation, you should _____.

The soot blowers are operating in the oil fuel boiler the air/fuel ratio must _____ throughout the action, and blowers greased after use.

Standby or emergency diesel generator day tanks should always be kept full to reduce the possibility of__________.

In the cargo winch, spur reduction gearing transfers the motor drive to _____.

A charge of fresh air is drawn into the engine cylinder and then _____ by the moving piston_____ very high pressure.

Which one might be used most likely in case of a fire?

Fuel oil day tanks for diesel engines must be checked and cleaned and cleaned at regular intervals in order to remove________.

Saltwater is typically provided to a refrigeration system to _____.

When was your ship built? ______ is a new oneShe was delivered to us by Bremen Shipyard only three months ago.

Each crank is made up of two crank webs joined by a common _____ to which the bottom end bearing is fitted.

A fire in a pile of dunnage would be classified as a _____.

A circuit breaker and a fuse have a basic similarity in that they both _____.

The device used for low-pressure control and high-pressure cutout on a compressor is called a .

During working, when the piston is near the _____, the air ignites the fine spray of fuel.

Combustion knock can occur in the cylinders of a diesel engine under any condition permitting _____.

Diesel engine cylinder head test cocks are used to _________.

When attempting to start a main propulsion diesel engine, the engine, the engine turns at the proper speed but will not startYou should check the_______.

The reciprocating pump can’t draw water from a tank may be caused by ______.

The designed _____ is 20 tons per day, but the fresh water generator can only distil 15 tons at present.

Fuel injection equipment must be kept in good condition, timed correctly, and the ______ in each cylinder must also be carefully balanced so that individual cylinders are not overloaded.

The SOLAS convention prescribes that the emergency steering drill should be carried out one time every ____ months.

Which of the following is a factor of fuel oil almost having nothing to do with the formation of combustion products?

A refrigeration system compressor crankcase is sweating or unusually coldThis is an indication of _____.

The first step you would take in helping an unconscious victim who is not breathing is __.

The ____ stage air compressors are widely used on board the ship.

The carbon deposits on the piston crown and in the ring grooves _____.

Which of the following best describes “overcharge of refrigerant”?

Distortion of the spray pattern of a nozzle or injector may be indicated by a/an________.

In large marine diesel engines cylinder oils usually contain additives formulated to impart the _____ to clean the rings and grooves.

The donkey boiler may be given a bottom blow _____.

There is a _____ system lubricating the running gear and cooling the piston and sometimes lubricating the cylinders.

In an electro-hydraulic steering gear, any change in relative position between the synchronous receiver and the follow-up gear will result in .

An increase in rotor clearances in a rotary pump will _____.

Diesel engine valve springs function to ____________.

The highest pressure in a diesel engine cylinder normally occurs _____.

It _____ for an emergency generator to require paralleling.

In a compression refrigeration plant the refrigerant flows from the expansion valve and through the _____ where it absorbs heat from the space being cooled and becomes a gas or vapor.

The main difference between a motor control circuit containing low voltage protection and low voltage release is that the latter contains _____.

The evaporating pressure in R22 vapor compression refrigeration plant should be _____ atmospheric.

In a disk-type lubricating oil purifier, _______.

The ____pump is usually used as the bilge feed pump to an oily water separator.

In the closed cooling system, the water _____.

The cable lifter, mooring drum and warp end of a split windlass may be separately engaged or disengaged means of a ____.

In PRC, the administration for implementing SOLAS convention is ____.

The first survey has two situations, one is changing ____ survey, the another is making survey.

During port state control inspection, if one generator is out of commission, ______ should investigate whether power is available and conduct tests.

The _____ of the gravity disc is too bigIt causes oil to flow through the water outletWe changed the disc and no oil is found in the water outlet.

In order to ensure perfect atomization, the fuel oil _____ before injection.

The main engine is cooled with fresh water ______ is added suitable small quantities of chemicals to prevent corrosion.

Prior to a ship’s departure from any port ____ should be tested with deck officer to ensure satisfactory operation.

The piston rings if found worn out _____ and supplied by shipchandler.

Which of the following pumps are self-priming, and can deal with liquid from a level below the pump? (1) reciprocating; (2) rotary; (3) centrifugal.

If the PSCO has clear grounds for carrying out a more detailed inspection, ______ should be immediately informed of these grounds.

is harmful for fuel pumps, fuel valves, cylinder liner, exhaust valve seats, and the turbocharger blades as well.

Which of the following gases represents the greatest threat to personnel safety in an engine room where the exhaust is leaking from a diesel engine?

After finished the engine, which of valves cannot be shut off by the duty engineer?

The additional mark _______ in the Classification Certificate for Machinery means propulsion apparatus is remotely controlled on the navigating bridge control station, and engine assembly control station is watched by duty personnel.

Domestic water pump is started automatically by _____ which operates as the water level falls to a predetermined level.

____ is used in typical marine pattern self-contained unit,

Upon arrival at a port, a vessel is not allowed _____ her ballast water, tanker washings or bilge water and other oily water at will.

The _____ of the diesel oil must not exceed 120 degree Fahrenheit.