轮机部三管轮考试题1(轮机英语)

Forcing the exhaust gases form. the cylinder of an operating diesel engine with the aid of a blower is known as _________.

Throttling in the _____ line of a centrifugal pump involves the risk of the pump cavitation.

The accident resulted ______ the motorman’s carelessness.

The function of lubricating oil is to _____.

In a diesel engine, works as working medium and changes the heat energy to mechanical energy, changes the reciprocating movement to rotary moment.

The oil in a cargo winch gear box should be sampled periodically to _____.

The lowest temperature at which fuel combustion becomes self-sustaining in the presence of a source of ignition, is defined as the .

Precision engine bearing inserts are manufactured with a small portion of the bearing ends extending beyond the bearing housing or capsThe installation process of these bearings requires sufficient ______.

An axial piston pump differs from a radial piston pump as the pistons of an axial piston pump are positioned _____.

Modern centrifuge designs enable continuous over a considerable period of timeThis is achieved by which is timed to discharge the sludge at regular intervals.

Acid solution in the system can be tested from time to time by putting some on to a piece of lime.

A semiconductor is a material with a _____.

The clutch band of a constant tensioning mooring winch must be set up tight enough to drive the winch drum and should slip only when ______.

The advantage of the control equipment is .

Before doing any work on a hydraulic system equipped with accumulators, you should .

If the ordered spare parts have been modified by manufacturer, which of the following should be pay attention to?

If the temperature in the icebox is too high, the trouble could be .

The FIRST step to take in fighting an engine room fire resulting from a ruptured fuel oil service line, is to _____.

Cooling of engine is achieved by circulation a cooling liquid around internal passages within the _____.

High lube oil temperatures developing in a diesel engine can result from_________.

If the sump _____ were to rise this would indicate water leakage into the oil and an investigation into the cause must be made.

The fire pumps must be capable of delivering a total quantity of water at a defined head, not less than _____ of the total bilge pumping capacity.

Deck cranes require_____ time to prepare for working cargo than derricks.

In a modern internal combustion diesel engine, the load carrying part of the engine is referred to as the________.

Lubricating oil viscosity in an operating diesel engine can be reduced by___________.

Diesel engine piston seizure can be caused by ______________.

When a vacuum boiling evaporator works, the hot jacket water will pass over the tube stack and _____ the sea water passing through the tubes.

In a commonly used fuel oil system, the oil is stored in tanks in the double bottom from which it is pumped to _____ and heated.

Which of the following conditions will develop if the flow of ‘raw’ cooling water to diesel engine is obstructed?

Which of the listed devices is used to measure pressure and convert it to an electrical signal?

A three-phase alternator operates at 450 volts with a power factor of 0.8If the ammeter indicates 250 amperes, what should be the KW meter reading _____.

The duty officer and engineer should obey regulation for the speed of the M.Ethat established by ____.

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

A centrifugal pump produces the required pressure energy by means of a rotating _____ provided with vanes.

An indicator card or pressure-volume diagram, shows graphically the ___________.

In a jerk pump, the amount of fuel that will be forced through the spray nozzle on each upward stroke of the plunger depends on .

A sudden decrease in the diesel engine lube oil viscosity could be an indication of_____.

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

Opening of the cylinder _____ will admit compressed air into the cylinder.

When installing rings on a diesel engine piston, you should check the ring＿.

The Convention is the first to establish basic requirements on training certification and watch-keeping for seafarers on an international level.

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

The Wheat-stone bridge is a precision measuring instrument utilizing the principle of changes in_____.

The function of a rectifier is similar to that of a _____.

Scale accumulation on evaporator heat exchange surfaces _____.

‘Offset’ is an inherent characteristic of which of the follow types of control modes?

Which of the listed diesel engine systems is likely to create the problem of a cylinder regularly misfiring?

If an electric motor driven air compressor fails to start, it may be due to a _____.

When required to work where there may be explosive gases, you should use tools which are .

If a diesel engine is difficult to start and operates with the engine temperatures lower than normal, you should suspect that the _____.