海船船员考试轮机部三管轮模拟题10(轮机英语)

If the engine _____ for a long period, there will be a danger of frost.

If a line at right angles to the axis rotates about that axis and, at the same time, moves parallel to the axis, it will generate _____.

If the surveyors ______ yesterday, they would have finished the survey work.

In the _____ refrigeration compressor one end of the crank shaft extends through the crankcase house for connection, via a coupling or pulley, to an external drive motor.

All personnel should be familiar with the lifeboats _____.

The trim of a vessel is the _____.

When carrying out mooring trial, if the M.Ecan’t start normally, you should ____.

When the load is increased on a turbocharged diesel engine, the amount of increased air supplied by the turbocharger will___________.

Which of the following statements is correct concerning diesel engine cooling water systems?

In diesel engineering practice, the term used to express the ignition quality of a particular fuel is＿.

Suppose the rated capacity of the main engine of a ship is 10,000 kW at 100 rated rpm, then when at 80 rpm its capacity should be _____.

As the amount of moisture in the air increases, the difference between the dry bulb and wet bulb temperature will _____.

To safeguard the operator and other personnel working on or near a hoisting operation which of the following precautions should be observed?

Which of the following problems may occur if the clearance between a piston and cylinder liner is insufficient?

When the general alarm is sounded continuously, the engine room personnel should _____.

Cast iron carrier rings, _____ machined grooves, are provided for all the pistons.

A vessel has been equipped with an oil lubricated stern bearing and is undergoing a routine dry-dockWhich of the following inspection should be made when the tail-shaft has been drawn?

Where are the zinc plates located? .

An efficient seal between the cylinder block and cylinder heads on many diesel engines is obtained with________.

An oxygen indicator will detect _____.

In a compression refrigeration plant the hot, high pressure refrigerant gas is cooled by the sea water and becomes liquid in the _____.

The division of the kilowatt load between two AC generators operating in parallel is controlled by the settings and characteristics of the _____.

Among the main propulsion units on board the ship with the same capacity, the lightest one is_____.

One end of a cylinder for a medium or high-speed diesel engine is sealed by the piston and rings, the other end is sealed by the ________.

In a _____ boiler the water flows through the inside of the tubes while the hot gases pass around the outside.

Which of the following may take place if the clearance of the main bearings are excessive?

A multistage centrifugal pump can be BEST described as having _____.

Defective governor in a diesel engine may lead to .

Turbulence in a diesel engine cylinder is of major importance in providing _____.

Air receivers installed in starting air systems are to be _______.

Sea water is not directly used as a coolant for engines because of its _____.

______ the moveable plate and floating ring inside the pump is very difficult.

The diffuser prevents pressure pulses from one cylinder _____ another during operation.

The device, which is installed in the compressor suction line to prevent liquid from entering the compressor when hot gas defrosting, is called a .

The word "offset" most probably means .

The space between cylinder liner and jacket is called _____.

The pollution prevention regulations do not apply to the transfer or discharge of ____.

The camshaft drive is designed to maintain proper camshaft speed relative to crankshaft speedIn maintaining this relationship, the camshaft drive causes the camshaft to rotate at .

To prevent the overflow of cargo tanks due to expansion, you should top off _____.

One precaution to take prior to working in a freshly painted compartment where there are an excessive amount of paint fumes, is to _____.

An increase in the fuel injection pump discharge pressure can be caused by a/an _______.

Broken valve strips in an operating low pressure, air compressor will cause _____.

A dirty fuel oil filter element can be detected by _____.

The crankshafts of medium speed engines are almost invariably solid _____ from a single piece of steel.

On most diesel engines, the governor controls the output speed by _____.

Improper maintenance of the fuel oil burners in an automatically fired auxiliary boiler, could result in _____.

Which condition indicates the air side fouling of an after-cooler on a turbocharged diesel engine?

Adjust _____ by means of lead wire.

One characteristic of a lubricating oil adversely affecting the result of centrifuging is .

A four-stroke/cycle, 1000horsepower diesel engine fails to start at normal cranking speed with normal fuel pressure and ambient temperatureThe reason for the failure could be ___.

When a diesel engine is operate at partial load, as compared to full load ,a decrease will occur in the average _______.

Cylinder liner cooling is often referred to as _____.

Brine density in a distilling plant is measured with a/an _____.

Less scale formation occurs in a flash evaporator than in a submerged tube evaporator because _____.

The efficiency and output capacity of a low pressure distilling plant will be reduced if the last effect shell .

The main objective of the SOLAS Convention is .

The explosive range of a mixture of flammable vapors is specified as a percentage of _____.

Shaft sealing in a centrifugal pump can be effected by _____.

Excessive oil foaming in the crankcase of a refrigeration compressor can result in _____.

High diesel engine cooling water temperatures can be caused by _____.

Sludge may form. in the crankcase of an air conditioning compressor as a result of _____.

The Company should ensure that the ship’s personnel are able to _____ effectively in the execution of their duties related to the SMS.

The ship security officer shall have knowledge and have received training, taking into account the guidance given in Part B of _______.

The starting air system usually has _____ to prevent starting if anything is not in order.

The guard, fencing or shielding for moving parts or machinery can be removed for repair only when the machinery it belongs to .

Combustion gases formed in the cylinder of a diesel engine are prevented from blowing past the piston by ____________.

_____ should not undertake any task which will interfere with the supervision duties relating to the main machinery and associated equipment.

An oil in water monitor is required in order to measure _____.

Excessive lube oil consumption by a reciprocating air compressor can be caused by _____.

Which of the following are components of a mechanical seal? (1) stationary ring; (2) rotational ring; (3) packing; (4)spring.

Usually we take the cooling effect of the air flown through the cylinder during the overlap period as .

Insulation light is located on ____ of main switchboard.

Lube oil accumulating in the cooling water system of a diesel engine will result in _______.

In a domestic fresh water system, the pump starters are controlled by _____ switches which operate when the pressure in the tank varies within predetermined limits as water is drawn off.

The International Code for the Construction and equipment of Ships Carrying Dangerous Chemicals in Bulk (IBC Code) is a part of .

A distinguishing feature of an educator, when compared to other pumps, is the _____.

While loading bulk oil, you notice oil on the water near the bargeWhich of the following actions should you carry out FIRST?

In the event of a flame failure in an auxiliary water-tube boiler, you must______.

A person on a fixed, or floating platform. engaged in oil exploration, located 10 nautical miles from nearest land MAY discharge _____.

Shims of different thicknesses are inserted between the shells to enable adjustment of _____.

In order to achieve greater dehumidification with an air conditioning system, you should ____.Ⅰ.reduce the cooling coil Ⅱ.temperature increase the re-heater temperature

Air trapped in the hydraulic fluid of a steering system should be indicated by _____.

The most common forms of main drive used on deck auxiliaries are _____.

“380V/220V Y/△” noted on the nameplate of a non-synchronous motor means that .

Two rams of the hydraulic gear are linked at their outer ends to _____ by a crosshead and swivel block.

The burning of fuel oil in a diesel engine having a high sodium content, will cause ＿.

A diesel engine is turned at normal cranking speed, but fails to fireThis can occur from __________.

What preventative maintenance should be done frequently to diesel engine starting air receivers?

The color of the flame on a halide torch without any refrigerant present is _____.

The vessel is out of harbor and in “Full Ahead”We are going to run fuel oil instead of _____ and open the fuel oil heater steam valve.

The forced draught fan should be started and air passed through the furnace for several minutes to “____” it of any exhaust gas or oil vapors.

Dress up the _____.

If you suspect a diesel engine is misfiring due to air leakage into the fuel system, you should begin looking for the leak at the __________.

Fuels of different qualities may require advancing or retarding the injection timing, in addition to which if the injection timing is advanced when the engine is running at loads below the ______, then a saving in fuel can be achieved.

When separating fuel oil in oil separator, the separating quantity is____ of the real quantity.

Permitting a diesel engine fuel oil day tank to run dry can cause _______.

Pressurized air enters the cylinder via the inlet ports and pushes the remaining exhaust gas from the cylinder in a process known as “_____”.

Centrifugal pumps are popular because they are very simple in construction, and produce smooth, constant, _____ discharge.

Prior to any overhaul work on electric equipment, it is important to ensure the circuits are _____.

Air or noncondensable gas is removed from a refrigeration system by a .

In automatic ____ the winch may be overhauled and wire is paid off the barrel at a pre-determined maximum tension

A pump is said to have "negative suction head" when the pump is located _____.

Before charging a refrigeration unit, the refrigerant charging lines should be .

A large two-stroke/cycle direct reversing diesel engine is to be reversedPrior to the admission of starting air you must ________.

Our ship often comes to this little port and stays here for ______.

There is too much water in the fuelIt doesn’t _____ to the specifications.

Air in the fuel lines to the fuel injection nozzles of a diesel will result in ______.

A flash-type evaporator discharges heated seawater into a chamber that is maintained at a pressure than the vapor pressure of the entering heated seawater, and subsequently the flashed water vapor thereby produced.

The main function of tie rods in the construction of large, low speed diesel engines is to _____.

Overheating of a hydraulic system may be a result of _____.

In deciding to detain a ship or not, the PSCO would better not_______ .

A tank which has been sealed for a long period of time can be dangerous because _____.

In a main propulsion turbocharged diesel engine, the speed of the turbocharger varies according to the ________.

Those generally used additives for cooling water are either anti-corrosion oils or inorganic_____.

You must take good care of the drainage cock of the air control systemBecause _____ leads scale formed which might malfunction the pilot control valve and other instruments.

A leaking diesel engine fuel injector will cause________.

The major cause of trouble in a mechanical-hydraulic governor is contamination of the hydraulic fluid by _______.

Under normal operating conditions, the highest temperature and pressure conditions existing in a flash-type evaporator will occur in the _____.

If the operating element of a thermostatic valve installed in a diesel engine cooling system malfunctions, it may result in _______.

Emulsion oils and sodium nitrite are both approved additives, but _____ cannot be used if any pipes are galvanized or if soldered joints exist.

In the event of failure of an auxiliary such as a lubricating pump, the standby pump is started and put on the line automatically“the line” in this sentence refers to .

Always ensure that the turning gear is____, even at the quay, the wake from other ships may turn the propeller and thus the engine.

The complete assembly of bedplate, A-frames and cylinder block is held together by _____ to form. a rigid structure.

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

The most common diesel engine fuel system problems are caused by _____.

In conventional systems, the injection pressure_______, while it’s_______in common rail diesel engines.

The linear motion of a diesel engine piston is converted to the rotary motion required to drive gears, propeller shafts, and generators by the _____.

The rotating unit of a spilt windlass consists of a____ with shaped snugs to grip the anchor cablea mooring drum for paying out or letting go of mooring wires and warp end for warping duties.

When the vessel shafting are installed, the slightly inclined of the shaft line should be rectified by____.

The water in an auxiliary boiler should be tested daily for _____.

The high air velocity leaving the compressor of an exhaust gas turbocharger is converted to pressure in the ____________.

A liquid indicator sight glass is useful in determining whether or not a refrigeration system is sufficiently chargedIt is generally located in the _____.

A bright shiny appearance of the sealing surfaces on diesel engine compression rings indicates＿.

Which of the following represents the emergency signal for fire aboard ship?

To prevent the unnecessary loading of an air conditioning system while maintaining the designed dry bulb temperature and relative humidity in an air conditioning system, you should _______.

In a diesel engine, excessive cylinder liner wear will cause ________Ⅰincreased blow-by Ⅱwear between the piston ring and groove

SOLAS regulations require that the inert gas system shall be capable of delivering inert gas with an oxygen content of not more than what percentage?

In using reduction gears to obtain efficient propeller speeds, _____.

The main factor which determines the output of each cylinder is _____.

If the flame from combustion in the cylinder of a four-stroke engine past the piston into the space below, the accumulation of flammable mixture would be ignited, thus resulting in _____.

Which of the following statements is true concerning carbon dioxide when used as a fire extinguishing agent?

Refrigerant enters the condenser as a _____.

If the back clearance of a piston ring is excessive, .

You are inspecting the lower main precision bearings on a diesel engine .You observe that about half the thin Babbitt linings are of a milky white colourThis condition is caused by _____.

With _____ unit the timing of fuel injection of an engine can be regulated automatically.

______ means the level for which further specific protective security measures shall be maintained for a limited period of time when a security incident is probable or imminent, although it may not be possible to identify the specific target.

The results of the audits and reviews _____ to the attention of all personnel having responsibility in the area involved.

When used in conjunction with a turbocharger, the main function of an after-cooler is to ______.

In machinery space, the valves, pipes should be .

Which of the following statements is true concerning the cetane number rating of diesel fuel? .

The basic training in fire prevention and fire fighting should include the theoretical elements which should cover _____.

Which one is not true? .

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

Which of the following statements is true concerning the cetane number of diesel fuel?

The presence of air in the condenser of a refrigeration system will _____ the condensing pressure.

Improper cooling of a diesel engine cylinder liner due to the accumulation of scale deposits may cause _____.

If the refrigeration compressor crankcase is sweating, the cause may be due to _____.

_____ is a machine by which electrical energy is transformed into mechanical energy.

When a crankshaft has to be handled outside the engine, it should be carefully supported in a manner which will avoid _____ high bending moments on it.

The most common contaminate of governor hydraulic fluid is _____.