轮机部三管轮考试题3(轮机英语)

The primary function of a fuel delivery check valve assembly is to________.

The rate of expansion of heated fuel oil varies with the _____.

Which of the two events listed occurs simultaneously in a two-stroke/cycle diesel engine?

Bacteria which live are said to be aerobic.

Many diesel engine exhaust valves are being constructed with hollow stems filled with sodium in order to ___________________.

About half an hour before the engine is required, cooling water at _____ must be circulated.

When the direction handle of telegraph is moved, the relative position of camshaft and crankshaft will be_____ .

An increasing head pressure in a refrigeration system, without any corresponding change in the cooling water inlet temperature, would probably be caused by _____.

Which of the actions listed and instituted on your part will have the greatest lasting effect on the crew with respect to safety?

The withdrawing of the cylinder liners, in general, depends on their _____This may amount to approximately 1/120 of the diameter in some engines.

The heat gained per pound of refrigerant in the evaporator is known as the _____.

The primary duty of lube oil is to reduce _____ between the working parts of an engine.

Visual inspection of chrome-plated piston compression rings reveals a black ring face at the position of the cylinder liner portsThis condition indicates a ring which .

Maximum horsepower of a diesel engine is attained _____.

Early injection timing is indicated by ______.

Refrigerant entering the compressor of a refrigeration system should be in which of the following conditions?

During bunkering, the request for stoppage of pumping shall be made, as a rule, 5 minutes ______.

Fuel oil contamination of an auxiliary diesel engine lube oil can result in ___________.

Small oil spills on deck can be prevented from contaminating any waters by _____.

The rate of heat transfer between the hot and cold fluids passing through a shell-and-tube type heat exchanger will _____.

When the chief engineer is in the machinery spaces, the officer in charge of the engineering watch shall_________ .

Rotation of the steering wheel on the navigation bridge initiates oil pressure being applied to the steering gear rams by _____.

When the water produced from most evaporator is supplied for drinking purpose, it must be treated to ensure it is biologically pure and _____.

The SOLAS convention prescribes that in the fire fighting drill the duty engineer should start the pump and supply deck water in minute(s).

The cooling water of the diesel engine should be treated, because it has ____.

The company should establish procedures to ensure that the ship is maintained ______ the provisions of the relevant rules and regulations.

The selection of an oil depends _____ on the operating conditions, the design of the engine and the type of fuel to be burned.

Because the tie bolts are so close to the crankshaft, some engines employ ______ to hold the crankshaft main bearing cap in position instead of conventional studs and nuts.

The sudden reduction of pressure occurring within the crankcase of a refrigeration compressor during starting causes the _____.

An acceptable means of tightening connecting rod and main bearing cap bolts is to measure the ______Itorque applied to each nut and bolt assembly IIstretch of each nut before and after tightening

______, the metal expands.

The various pumps and lines are _____ to some extent so that each pump can act as an alternative for another.

A diesel engine is operating with excessively high exhaust temperatures at all cylindersTo correct this condition, you should FIRST _____.

A spur gear pump should be operated with the discharge valves _____.

To assist separation of low viscosity oils steam coils or electric heaters are fitted ______ of the oily water separator.

Proper lubrication of the main bearing is more easily obtained in a single acting four-stroke/cycle diesel engine than in a single acting two-stroke/cycle diesel engine because ____.

A change in the degree of fuel atomization in a diesel engine would most greatly affect _____.

What is the purpose of a relief valve?

The defective places in the furnace _____ with fire bricks.

After the order “_____” is given, the air system is shut down, the turning gear put in.

The exhaust system for a turbocharged two-stroke/cycle diesel engine functions to_______.

Bridge orders must be _____ and a record of any required changes in speed and direction should be kept.

A few spots of turbocharger can be caused by ①crash stop of engine; ②rapid increased of engine speed.

Under the provisions of applicable international conventions, the officers to conduct port state control inspection must be duly authorized by ______.

Your ship has run aground and it is necessary to determine whether or not a compartment has floodedTherefore, you should _____.

For a given fuel, a change in the compression ratio will affect the ignition lag by which of the listed means?

The bridge should inform. the engine room before passing through congested or shallow waterway.

Which action should be taken when an auxiliary boiler in is operation?

In a full flow type lube oil system, the bypass relief valve will lift due to .