海船船员考试轮机部三管轮模拟题3(轮机英语)

When two oil separators are working in series, they should work with ____.

What is the harmful effect of sulfur in a fuel?

Shaker, circulation and spray are the three general methods used in __________

______ is used to prevent the entry of sea water to the machinery space.

The crankshaft is of the semi built type, with the journal _____ the forged or cast steel crank throws.

Diesel engine control can be obtained by the bridge _____.

The part of the anchor windlass that engages the anchor chain for lifting is called the _____.

If the pump for a hydraulic anchor windlass is overheating, the cause may be _____.

Propulsion of the vast majority of contemporary merchant ships (especially containerships and VLCCs) utilizes____ as prime mover.

If the capacity of the refrigeration compressor is too small, the excess vapor will accumulate in the evaporator, causing the pressure to _____.

Some cranes are mounted in pairs on a common platform. which can be rotated through_____.

Under ISM Code the ship to which it applies has to carry ____.

Prior to starting, the purpose of turning over a main propulsion diesel engine with the cylinder test cocks open, is to ______

In an air conditioning system, low head pressure associated with a reciprocating compressor can be the result of ____.

The cap and new shell are tightened up and then removed and the thickness of the wire measured by _____.

After a fire has been extinguished in a closed space, personnel may safely enter the space when _____.

The lube oil cooler is located after the lube oil filter in order for _____.

When welding or burning aboard a vessel, you must be certain that the space _____.

_____ provide the water to the pistons.

When the engine room is put in standby condition, the engineer in charge of the watch need not to __________ .

The output volume of a positive fixed displacement pump can be changed only by _____.

______ means the person on board the ship, accountable to the master, designated by the Company as responsible for the security of the ship, including implementation and maintenance of the ship security plan and for liaison with the company security officer and port facility security officers.

Coolant can be lost from a diesel engine jacket cooling waster system by leakage from_____.

The term "oily mixture", as defined in the Pollution Prevention Regulations includes _____.

Which of the following precautions should always be carried out in dry dock?

Most often ____ is attached to the engine-propeller shaft for efficient electric power generation.

If your vessel bums 8 tons of fuel per hour at 15 knots, how many tons per hour will it burn at 18 knots?

It is that reduce the BOD by converting the organic content of the sewage to a chemically and organically inert sludge.

Trunk-type diesel engine pistons are most effectively cooled by heat_____.

What type of oil is not covered in the oil pollution law?

Disinfector in the sewage biological treatment plant usually is ____ .

The ignition quality of a diesel fuel is indicated by the ________.

The device used to store a charged pressure for a hydraulic starting system is called the ___.

The temperature of the fuel oil received during bunkering operation is critical in determining the .

Anchor capstans are used in some installation where the cable lifter rotates about a _____.

One of the main differences between the various types of screw pumps is in the _____.

The _____ is used for hauling in or letting out the wires or ropes.

During the running of the diesel engine, if the supply of cooling water is interrupted or the temperature of cooling water out of the cylinder is too high, the duty engineer should ____.

The hot expanding gas rotates the blades of the exhaust turbine, thus giving out large part of its power, which drives _____.

In a trunk type diesel engine piston, the thickness of the head or crown is determined by the_______Istatically balanced IIheat dissipation requirement

Piston No2 of main engine has been removed, and it will be _____ by noon tomorrow.

An a.cswitchboard is usually_____ the corresponding d.cboard because of the higher voltage and lower currents and smaller bus-bars.

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

The viscosity of an oil is a measure of its _____.

If a four-stroke/cycle diesel engine is started by injecting air into the cylinder, the pistons receiving the charge of starting air must be________.

In a pneumatic automation system, a unit producing a signal to govern the position of the controller of the measured variable, relative to the value of the measured variable, is said to have________.

The rising of the exhaust temperature in manifold pipe may NOT result from _____.

Friction developing between the moving parts of a governor, governor linkage and control valve will cause the governor to _____.

During the fuel injection period, fuel pressure must exceed cylinder gas pressure to _____.

Black smoke coming from a boiler can be caused by _____.

The rotary motion of a diesel engine crankshaft is obtained from the up and down motion of the piston via the _____.

_____ is not properly set thus causing either advanced or retarded firing.

The electrolyte in a lead-acid storage battery consists of distilled water and _____.

The internal force of a material, which tends to resist deformation when subjected to external forces, is known as _____.

Approximately what percent of tank space should be left for expansion of oil due to possible temperature increase?

Which of the following statements is/are true regarding hydraulic pumps in general? .

A salinity indicator is used to determine the _____.

When the steering wheel is turned, oil is directed to the steering gear rams by .

The development of oils _____ the increasing demands made by the steady rise in powers produced by modem diesels.

Maximum and minimum working temperatures must be considered when choosing the joint, which must be so installed that it is neither over-compressed nor over-extendedThe bold and italic word "which "probably means _____.

The emergency bilge suction or bilge _____ is used to prevent flooding of the ship.

A re-heater in an air conditioning system functions to ______.

With____ the engine need not to be aligned with reduction gears or propeller shaft.

The most common cause of lowering the crankcase lube oil flash point is _____.

Camshafts are usually driven by timing gears or _____.

The emergency generator or emergency battery is connected to_____ on most large ships.

The ______is used to burn oil sludge.

Which one of following statement is not true concerning the suitable sites of the direct acting relief valve and the pilot operated relieve valve?

The cylinder oil is pumped into the cylinder (via non-return valves) when the piston rings pass the lubricating orifices during ____.

The function of the cut-off lever is .

Which of the following equipment is not pollution prevention equipment?

The highest loads applied to the diesel engine crankshaft main bearings are ___________.

Excessively low air pressure occurring in the intercooler of a reciprocating air compressor is caused by_____.

If exhaust temperatures are too high, you should check ______.

The International Oil Pollution Prevention Certificate required by MARPOL is issued to China flag by the _____.

Which of the following influences the position of the interface between the liquid seal and the oil in a purifier?

If the turbocharger of a four-stroke/cycle diesel engine fails to operate, which of the following statements best describes the probable effect? .

Exhaust pipes for separate diesel engines can be combined only when ________.

Which of the following conditions can cause below normal air pressure in the intake manifold of a turbocharged diesel engine? .

Most fuel injection nozzles are opened by _____.

From the passage, we can learn that the simplest controller action is

In a general cargo crane, three principal movements are _____; _____; _____.

A reduction in load on a diesel engine results in _____ of speed of the crankshaft.

Water allowed to accumulate in the hydraulic system oil will cause an oxidation process producing by- products which are normally _____.

If a scavenge fire starts, the engine must be put to “______” and the fuel must be taken off the cylinders affected by the fire.

No sooner ______ than they started to repair the sludge pump.

Which term describes piston pins having bearing surfaces in both the piston bosses and connecting rod eye?

The term "oil", as used in the Pollution Prevention Regulations, means _____.

The machine has stopped rotating because the bearing _____ the shaft.

Fires resulting from spontaneous combustion are usually caused by the improper disposal of _____.

After passing through the expansion valve the refrigerant should be in the state of _____.

Purging air from a hydraulic system is necessary when .

A diesel engine experiences a sudden loss in speed, accompanied by black exhaust smoke, with the fuel rack at maximum, and speed remaining below normal .the probable ___.

A-frames and cylinder block is held together by _____ to form. a rigid structure.

The gas loads on the engine structure are constrained by means of hydraulically preloaded _____ which connect the bed plate, frame. sections and cylinder jackets into a single unit.

Which of the listed types of starting systems is often used on large, low-speed, direct reversing, main propulsion diesel engines?

At an unsheltered anchorage the chief engineer officer shall consult with _____ whether or not to maintain an underway watch.

Sweating of the refrigeration system compressor crankcase is caused by _____.

Excessive lubricating oil consumption in a running diesel engine can be caused by ________.

A drilled hole is accurately finished to size with a .

Which of the following is true about the fuel injection with an ordinary diesel engine?

Since the engine doesn’t work well, you’d better _____ as soon as possible.

The vapors given off by heated fuel oil are heavier than air and are _____.

While overhauling a jerk-type fuel pump it is necessary to replace the pump plungerWhich of the parts listed below must also be replaced?

In a single acting, four-stroke/cycle diesel engine, the power impulse in an individual cylinder occurs ________.

Small crack in the crankshaft bearing surface of a diesel engine are an indication of____.

The majority of medium speed and high speed marine diesel engines for main or auxiliary drive operate on the _____ cycle.

The _____belongs to the anchor handling equipment.

One of the functions of ventilation is to _____ the humidity of spaces containing sources of moisture, or to _____ the temperature of spaces not mechanically cooled such as the engine room.

An indicator on the main switchboard should show ______ the emergency battery is in service or not.

The oil sump, a light welded design, is mounted on the engine block from below and sealed by .

Why shiprepair is an inherently difficult business to manage in the conventional sense? .

Increasing the temperature of a fuel will reduce its _____.

Compared to a constant pitch propeller, a controllable pitch propeller _____.

According to the SOLAS convention, the bilge water system .

Burning fuel with a high sulfur content in a diesel engine will ＿.

Wristpin bearings are difficult to lubricate because of their oscillating motion and___________

With V1T the start of injection may be _____ as the engine load is reduced within a certain range.

The shipboard oil pollution emergency plan will be invalid after ____.

Explosions do occur _____ caused by the ignition of oil or vapour gaining access from compressors or defective engine starting valves.

When a flash-type evaporator is to be secured for an extended period of time, the entire unit should be drained, cleaned, and _____.

Heat for igniting the fuel oil in the cylinder of a diesel engine is generated by the ______.

When the fuel oil is burning in the combustion chamber, it _____.

Which of the following pumps will most affect oily water separator performance and give the worst result?

The air charge leaving an intercooler, or after-cooler of an air compressor can be expected to be _____.

____ are used to digest the sewage to produce innocuous sludge in a biological sewage treatment plant.

In a closed cooling system for a turbocharged, four-stroke/cycle diesel engine, fluctuating water pressure can be caused by .

The control spindle operates the slipper ring or _____ of the variable delivery pump, which controls the suction and discharge of the oil.

In a flash evaporator, scale as a result of higher than normal temperatures in most likely to occur in the __.

Which of the turbo-charging systems listed operates with the least average back pressure in the exhaust manifold?

Which characteristic or condition will have the greatest effect on increasing a hydraulic oils viscosity?

Water level controllers of the boiler must be kept operable to protect external steam-using plant from water “_____” danger.

The fuel oil system for a diesel engine can be considered in two parts--the fuel supply and the _____ systems.

An operational amplifier, as used in todays consoles, has a calculated gain of 5This means that when the input changes _____.

It has something ______ with poor workmanship and assembly, doesn’t it?

Fuel oil having a low cetane rating could result in________.

A supercharged engine differs from an un-supercharged engine it operates at an increases pressure.

Synchrocope and synchro light are located on ____ of main switchboard.

The oil _____ in the discharging water from oil water separator exceeds 15 PPM without alarm, because the coil was burnt out.

For any piston ring to operate smoothly without scuffing ,the ring must be ______.

The amount of fluid friction or internal friction inherent in a mineral lubricating oil is reflected as a measure of its _____.

The most likely place for a fire to start through the process of spontaneous combustion is in _____.

The pump used to send the bilge water into the oily water separator______ the mixture because this might create finer oil particles.

When a vessel is in dry-dock, the vessel’s engineers should _____.

A knocking sound emitted from an unloaded air compressor is probably caused by _____.

In order to ensure the safety of the ship and its equipment during UMS operation, certain essential functions _____.

The main bearing metal is a lining _____.

If oil density were greater than water’s, the oil separator _____.

Where tanks are arranged for either oil or ballast, _____ must be fitted in the pipeline.

One characteristic of a pulse type turbo-charging system is________.

Accidental grounds in a shipboard electrical system must be repaired as soon as possible as they will _____.

The crank-room cover should not be opened until at least _____ minutes after the engine stops.

Diesel engine exhaust noise can be reduced in an exhaust muffler by ___.

During steering gear test should be moved through its full travel in both directions.

Because of the reduced _____ in the vacuum boiling evaporator, some of the sea water boils as it flows through the tubes.

An overcorrecting and unstable engine governor operation is known as______.

Fuel is ignited in a diesel engine cylinder by _____.

The auxiliary steering gear must be capable of being brought speedily into operation and be able to put the rudder over from 15 degrees on one side to 15 degrees on the other side in no more than _____ with the ship at its deepest service draught and running ahead at the greater of one half of the maximum service speed or _____.

The saturation temperature of the refrigerant must be _____ that required in the evaporator refrigerated space.

A dry-type exhaust muffler clogged with soot, will cause_________.