2007年第2期海船船员适任证书全国统考试题(总第43期)

The discharge flow of a reciprocating pump is ______.

The cetane number of a diesel fuel oil indicates its ______.

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

Camshafts are usually driven by timing gears or  ______.

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

The total starting air capacity required for reversible main engines is to be sufficient for a least ______.

A dirty diesel engine oil filter element can best be detected by ______.

Before a marine diesel engine is started the cylinders and pistons must be ______.

A controllable pitch propeller on a diesel driven vessel eliminates the need for ______.

The maximum pressure developed by a waste heat boiler is determined by the main engine exhaust ______.

______continuously extract the crankcase atmosphere, via a pipe system, and move it past a sensitive and accurate opacity (不透明)measuring track.

The water in a steaming auxiliary boiler should be tested daily for ______.

A firebox explosion in an automatically fired auxiliary boiler may be the result of ______.

A feed pump for an auxiliary boiler might lose suction if the ______.

The gear and screw pumps are classified as______.

The pressure of a liquid leaving the pump can be referred to as the ______.

Which of the valves listed will be cycled from fully open to fully closed when the handle is turned 90 degree?

A pump shaft that is bent or distorted should normally be ______.

A centrifugal pump may fail to deliver water when first started if the ______.

Which of the following conditions must exist for heat to flow from one object to another?

The dew point of air is reached when the wet bulb temperature is ______.

If air at 95 ℃ dry bulb temperature and 50% relative humidity is conditioned to 75 ℃ dry bulb temperature and 50% relative humidity, it is an example of ______.

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

Oily water separators are used to ensure that ships don't discharge oil when pumping out ______.

When started, a complete oily water separating unit is first filled______. The oily water mixture is then pumped through the inlet pipe into the coarse separating compartment.

Which is the pollution prevention equipment?

The oil sludge is burnt in the ______onboard. I’ll show you the ashes.

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

Great care is dedicated to the removal of _____ from the scavenge air.

Dirty oil must be _____ before being used again.

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

When securing a flash-type evaporator for an extended period of time, you should ______.

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

Positive displacement, helical gear(斜齿轮) pumps are well suited for pumping oil because ______.

The oil in a cargo winch gear box should be sampled periodically(周期性地) to ______.

If an anchor windlass has been idle for some time, you should ______.

A mooring winch should be equipped with mechanical brakes capable of holding ______.

Hydraulic cranes must be properly warmed-up before being operated because ______.

The current flowing first in one direction and then in another is called ____ current.

The frequency of an alternator at a given RPM is determined by the ______.

While paralleling two AC generators using synchronizing(同步的) lamps only, both lamps will go dark when the generators are ______.

The load sharing characteristics of two diesel generators operating in parallel are mostly dependent on their governor ______.

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

The main generators are connected to ______.

The operation of _____ two alternators requires the voltages to be equal and also in phase.

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

A ground in an electrical circuit outside the engine room ______.

Time delayed or delayed action-type fuses are designed to ______.

When voltage and current developed in an AC circuit reach their peak values at the same time, the power factor is ______.

When there is a fire in a large electric motor, normally the very FIRST step is to ______.

Before “stand by” is rung on the engine telegraph, it is usual to give the main diesel engine a brief trial ______ahead and astern.

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

After the order ' ______' is given, the air system is shut down, the turning gear put in.

A tank has been sealed and unventilated(不通风的) for a long period of time. Which of the following conditions does this indicate?

Fires involving combustible metals are classified as ______.

The three basic components of a fire are chain reaction, heat, fuel, and ______.

CO2 extinguishes a fire by __________.

Seawater may be used for drinking water ______.

Obviously, for a given fuel oil, its pour point is ______its cloud point.

Now that the valve is not worth ______, I suggest it ______.

When a vessel is in dry-dock, the vessel's engineers should ______.

The additional mark ______in the Classification Certificate for Machinery represents the propulsion apparatus is remotely controlled on the navigating bridge control station, and engine room is watched by duty personnel.

Oil Record Book Part I shall be provided to ______.

“Inability to provide for the first watch at the commencement of a voyage and for subsequent relieving watches persons who are sufficiently rested and otherwise fit for duty.” is considered to be one of the detainable deficiencies(缺乏) under ______.

The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the ______.

When deciding the composition of the engineering watch, which may include _____appropriately, many factors shall be taken into account.

During an engine room watch if immediate action is necessary to ensure safety of the ship, its machinery and crew, ______.

One of the methods NOT usually allowed in cleaning up oil spills in the United States is ______.

According to the international regulations concerning the prevention of pollution of sea areas from ships, the disposal into the sea of all plastics is ______.

In cleaning up an oil spill, the use of chemical agents would ______.

The main objective of the SOLAS Convention is to specify ______for the construction, equipment and operation of ships, compatible their safety.

These acid residues must be prevented from entering the crankcase, otherwise the lube oil would be _______ .

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

According to above massage, the advantage of common-rail injection is______.

According to above massage, RT-flex engine can optimize______.① fuel injection pressure
② combustion  ③ exhaust valve timing

The key feature of the Sulzer RT-flex system is that it gives complete freedom in the _____ and operation of fuel injection and exhaust valve actuation.

The RT-flex engine can run at very low speed,  this is made possible by following things except _______.

（轮机日志）上午10时30分，由于不明原因运行中NO.1发电机跳闸，导致全船失电,  NO.2发电机自动起动恢复正常供电。

（修理单）NO.2重油分油机解体检修, 立轴、横轴抽出检查，所有密封橡胶O形圈、轴承换新。