Головна Онлайн-тести CES Усі типи судів Ch-Eng / 2nd-Eng Test Online for Seamans about Engine, Management Level (CES v6.0)

Онлайн-тестування: Test Online for Seamans about Engine, Management Level (CES v6.0)

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Тест складається із 80 випадкових питань.
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What does ISM stand for?

The International Management Code for the Safe Operation of Ships and for Pollution Prevention.

International Ship Measurement and Pollution Control.

International Safe Manning Certification.

Internal Ship Safety Management.

What kind of electrolyte is used for Nickel-iron batteries?

Solution of sodium and water.

Solution of zinc-carbon and water.

Solution of sulphuric acid and water.

Solution of potassium hydroxide (KOH) and water.

I don’t know.

A galley hot plate uses a Nichrome/Magnesium Oxide heating element, and is to be tested before being put into service for the first time. An insulation resistance test yields a reading of 0,3 M Ohm. Which action should be taken?

Discard the element.

Put the element into service.

Wash the element in a degreaser agent. Then retest, and if ok put it into service.

Apply reduced voltage to the element for a few minutes. Then retest, and if ok put into service.

I don’t know.

Which of the following symptoms would indicate that the filter drier in a refrigeration circuit has become blocked?

A large temperature drop across the drier.

A hammering noise from the compressors.

A hammering noise from the drier.

A pressure rise before the drier.

It is the Master’s responsibility to ensure that:

Concerned personnel carry out the on-board training programme effectively.

All information regarding the onboard training is given to the ship manager.

Safety equipment is not used during the training.

Life jackets are worn during every training.

In terms of automated control systems, what is typical for a continuous control system?

It is possible to predict the control mathematically.

The control valve will always be changing position.

It is not possible to have a stable process.

The output signal is equal to the input signal.

I don’t know.

The cold room temperature is almost at the cut out point in a vapour-compression refrigeration system. What should the refrigerant state be just after the evaporator if the system is correctly set up?

Slightly superheated low pressure gas.

Wet vapour at high pressure.

Sub-cooled liquid at low pressure.

Cold liquid at high pressure.

In case of pollution in US waters, do you always have to notify the National Response Center (OPA-90)?

Yes, within thirty (30) minutes.

Yes, within three (3) days.

No, not if the local US State Authority is correctly notified.

No, only the shipowner can notify NRC.

Some diesel engines have alarm and slow down protection in the event of a fire in the scavenge boxes. Choose the option which would be a typical set point for giving a slow down of the engine in the event of a scavenge box fire?

120 °C.

40 °C.

150 °C.

50 °C.

A motor nameplate reads 75 hp. What is the reading in kW?

56 kW.

75 kW.

37,5 kW.

128 kW.

Low voltage ships tend to have insulated neutral systems. What is the reason for this?

In the event of an earth fault vital equipment will not trip.

It’s easier to detect faults.

If the neutral is not insulated, then it may short to other conductors.

It’s more effective than insulating the live conductor.

I don’t know.

Some ships generate electrical power at 440 V, but then step up this voltage to supply specific electrical equipment. One common example, may be to feed a large bow thruster. Why is this done?

The overall ship’s electrical load does not justify a High Voltage generating plant. This method allows more power to be delivered to the bow thruster at low running cost.

Manufacturers can supply High Voltage bow thrusters at less cost, and the power factor is improved.

A large bow thruster will draw very large currents at low voltage. Being typically remote from the generator, significant voltage drops would occur at low voltage.

The shipyard could not purchase a High Voltage generating plant at the time of manufacture, so they used what was available at the time.

I don’t know.

Two reference points for pressure exist, absolute zero and atmospheric pressure. What are pressures measured relative to absolute zero called:

Pressure drop.

Gauge pressure.

Vacuum pressure.

Absolute pressure.

I don’t know.

In the context of an automated control system, which controller must be tuned first in a cascade control system?

Any one of them.

Both at the same time.

The secondary controller.

The primary controller.

I don’t know.

Why is it important that the correct tension is maintained in a diesel engine timing chain?

Correct tension ensures that the chain and associated equipment is within normal loading limits.

Correct tension ensures that there is absolutely no vibration in the chain.

Correct tension ensures that the fuel and valve timing are correct.

Correct tension ensures that the chain is correctly lubricated.

In which of the following automated control processes will the time constant be of minor importance?

Level control.

Flow control.

Temperature control.

Pressure control.

I don’t know.

A thermistor, which provides feedback for a thermal control system, is suspected to have failed. Assuming there is no available replacement, which of the following methods may be used to prove it has failed?

Disconnect the thermocouple lead from the controller, and replace it with a mA source.

Connect a mA source in parallel with the thermocouple connections.

Connect a mV source in parallel with the thermocouple connections.

Disconnect the thermocouple lead from the controller, and replace it with a mV source.

I don’t know.

Which of the following is typical for a feed-forward control system?

Mathematical calculation of the system response.

Easy to obtain a perfect control.

Control of the process inlet side.

The process continually oscillates.

I don’t know.

The coil of a 12 V, 120 mA DC relay must be connected across a 24 V supply. What action should be taken?

Install a 100 Ohm resistor in parallel with the coil.

Install a 100 k Ohm resistor in parallel with the coil.

Install a 100 k Ohm resistor in series with the coil.

Install a 100 Ohm resistor in series with the coil.

I don’t know.

A draw card obtained from a cylinder of a large 2 stroke diesel engine shows that both cylinder compression and maximum pressures are low. Cards from other cylinders indicate normal operation. What is the likely cause of this problem?

Faulty cylinder component (piston rings, liner, etc.).

Excessive cooling of the charge air.

Faulty high pressure fuel pump.

Faulty turbocharger.

The fuel consumption for the main diesel engine has gradually increased over a period of a few months. All system pressures and temperatures appear normal. From the options given, choose the one which is the most likely cause of this:

Fouling of the hull.

Water in the hull.

Sea water temperature changing.

Damaged propeller blade.

Which is the preferred method for starting an air conditioning refrigeration compressor which has been shut down for a period of time?

Start with suction valve throttled in to minimise risk of drawing liquid refrigerant into the compressor.

Start with all system valves fully opened.

Start and stop repeatedly until suction pressure and oil pressure are normal.

Start with the discharge valve throttled in to prevent excess condenser pressure.

A two step controller (open/close) has failed and the only available spare controller is a P+I controller. Select, from the options given, how the P+I controller could be set up to achieve approximate two step control.

Set the proportional band to maximum width and the integral action to minimum (repeats per minute).

Set the proportional band to minimum width and the integral action to minimum (repeats per minute).

Set the proportional band to minimum width and the integral action to maximum (repeats per minute).

Set the proportional band to maximum width and the integral action to maximum (repeats per minute).

When considering instrumentation systems, what is a typical symptom of a fault with the span of an instrument?

100 % output is accurate, but Zero-point is wrong.

Linearity problems.

Zero-point and 100 % are correct, but not at mid-range.

Zero-point is accurate, but 100 % input is not giving 100 % output.

I don’t know.

When measuring viscosity with a restricted flow viscometer, the preferred sensing device is:

Bourdon tube.

Rotating cylinder.

Capillary tube.

Capacitance probe.

I don’t know.

What type of dynamic forces may cause indent in plating on forecastle deck and main deck in way of pillars inside forecastle?

Impact pressure forces in way of abrupt or flared bow.

Forces created by waves on the forecastle.

Slamming in way of flat bottom forward of light draught.

Pressure forces caused by green water on deck.

What principle of measurement are viscosity controllers usually based on?

Measurement of differential pressure.

Measurement of two different temperatures.

Measurement of flow.

Measurement of temperature.

Oil analysis results for a sample of diesel engine lubricating oil show a high level of tin. What could be the possible cause?

Debris from damage to a white metal bearing.

Debris from damage to a rolling contact bearing.

Cylinder oil contamination of the lubricating oil system.

Debris from fretting between bearing housing parts.

A cable has a resistance of 100 milli-ohms. It supplies a 300 A load over a distance of 100 meters. What is the voltage drop along it’s length?

3,0 volts.

300 volts.

30 volts.

300 millivolts.

I don’t know.

How often should the lifeboat wire falls be turned and renewed?

Turned at intervals of not more than 30 months and renewed every 5 years.

Renewed every three years.

Turned every 30 months and needs only to be renewed if the wire is in poor condition.

Turned every 2 years and renewed every 4 years.

The engine turns over normally when starting air is supplied but does not fire even though normal starting rpm is achieved. What could be the probable cause to this?

Air in the fuel oil system.

The lubricating oil temperature is low.

The turbocharger has not run up to normal full speed.

The turning gear interlock has operated.

The circuit diagrams illustrate four different methods of wiring between a Pt 100 temperature sensor and its signal processing electronics. Which of the wiring methods gives the best measuring accuracy?

Figure 2.

Figure 4.

Figure 1.

Figure 3.

I don’t know.

The majority of conventions adopted under the auspices of IMO fall into which of the three main categories?

Maritime Safety, Prevention of Marine pollution, Liability and compensation.

Maritime Safety, STCW, Maritime Security.

Safety, Terrorism, ILO.

There are no conventions that fall under IMO.

Which one of the listed requirements regarding abandon ship drills corresponds to present SOLAS regulation?

Each lifeboat shall be launched, and maneuvered in the water with its assigned crew at least once every three months during an abandon ship drill.

Drills shall be conducted when the ship is in a harbour.

All lifeboats shall be lowered during drills.

When carrying out repair or maintenance tasks involving hot work a hot work permit must be issued. Select the correct option from those given which completes the following statement. The permit for hot work:

Should only cover specific hot work tasks, be valid for a specified time period and be issued by the person carrying out the work.

Should only cover specific hot work tasks and be valid for a specified time period.

Is valid for completion of the specific hot work tasks irrespective of the time taken.

A medium speed diesel engine which is supported on a steel chocking system has had repeated problems with two of the chocks at the end of the engine on the port side becoming slack. This has led to some fretting damage to the bedplate and tank top in that area. What action should be taken to affect a cost effective permanent repair?

Tighten the holding down bolts in that area to 150 % recommended load to prevent further slackening and fretting.

Replace the complete steel chocking system with one using resilient mounts to accommodate movement and avoid further incidents of fretting.

Replace the damaged chocks with resin based chocks of an appropriate size.

Replace the complete steel chocking system with a resin based system.

Routine maintenance insulation testing of a three-phase induction motor should cover which measurements?

U1-U2, V1-V2, W1-W2, U-E, V-E, W-E.

U-E, V-E, W-E, U-V, V-W, W-U.

U-V-W-E.

AA-E, ZZ-E.

I don’t know.

Continuity testing of a delta connected three phase induction motor yields the following results; U1-V1 = 4 Ohms, V1-W1 = 4 Ohms, W1-U1 = 4 Ohms. What is the value of continuity resistance for each winding i. e. U1-U2?

12 Ohms.

6 Ohms.

2 Ohms.

4 Ohms.

I don’t know.

A 6-Volt DC relay is to be used with a 12-Volt power supply. The relay requires a current of 0,1 Amp. What is the series resistance required?

60 Ohm.

80 Ohm.

480 Ohm.

120 Ohm.

I don’t know.

What is the correct operation of the slow-turning facility fitted to some large 2-stroke main propulsion diesel engines?

Slow turning should be set to operate automatically prior to engine start when engine has been stopped for 20 to 30 minutes during manoeuvring.

Slow turning should be set to operate automatically every 10 to 15 minutes when the engine is on standby.

Slow turning should be carried out immediately the duty engineer gets notice of standby from the bridge.

Slow turning should be set to operate automatically at finish with engines to allow the engine to cool down evenly.

When turning a cascade control system, which of the following actions should be done first?

Adjust the slave controller with the master controller in manual mode.

Adjust both controllers at the same time.

Adjust the slave controller with the master controller in auto mode.

Adjust the master controller with the slave controller disabled.

I don’t know.

The turbocharger on a diesel engine is surging. Which one of the following options would be the most likely cause?

Dirty scavenging air cooler on the air side.

Dirty rotor blades and nozzle ring.

The lubrication oil pump is malfunctioning.

Worn out bearings on the turbocharger.

Wet vapour at high pressure.

Cold liquid at high pressure.

Sub-cooled liquid at low pressure.

Slightly superheated low pressure gas.

When the cable length exceeds approx. 10 meters we normally have to, in case of a Pt 100, in some way compensate for the cable resistance. Do we also have to do this if we choose to use a T802 temperature sensor?

No.

Yes.

Depends on temperature to be measured.

Not applicable.

When should a crew member joining a ship for the first time be given some training and instructions in the use of the ship’s fire-fighting appliances?

As soon as possible but not later than 2 weeks after he joins the ship.

As soon as possible but not later than 2 days after he joins the ship.

As soon as possible but not later than 24 hours after he joins the ship.

As soon as possible.

What should be the healthy continuity resistance of a 220V, 2,2kW, 10A heating element, when checked near to it’s rated operating temperature?

22 Ohms.

220 Ohms.

10 Ohms.

0,1 Ohms.

When work must be done on High Voltage equipment, it is vital that the equipment is earthed (grounded) after isolation procedures have been carried out. Why is this?

To provide a reference point, and so ensure accuracy of any test results.

To ensure that it is dead, even if there was a flaw in the isolation procedure.

To ensure that no energy remains in the system, and that it cannot be recharged by external influences.

To ensure that the equipment does not overheat due to currents circulating through earth (ground).

I don’t know.

Sometimes an early warning of failure in High Voltage switchboards may be an unpleasant smell. If the switchboard uses gas circuit breakers, which of the following may indicate a potential problem?

Rotten eggs.

Rotten fish.

Chlorine.

Gas oil.

I don’t know.

During maintenance work on the main engine a problem arises regarding the lifting of a main component in that the manufacturer’s instructions ado not apply to the engine as fitted and present a hazard. In which of the information/record sources given in the options, is it most important to record the information relating to this anomaly?

ISM procedures in the ship’s safety manual.

Safety officers report.

Engine room planned maintenance schedule.

Engine room log book.

Set the proportional band to maximum width and the integral action to minimum (repeats per minute).

Set the proportional band to minimum width and the integral action to maximum (repeats per minute).

Set the proportional band to minimum width and the integral action to minimum (repeats per minute).

When performing electrical testing of a three phase motor, insulation resistance measurements may be influenced by which of the following?

Temperature, humidity and surface contamination.

Humidity, frequency and dampness.

Humidity, pressure and surface contamination.

Between 0,1 micro Ohm and 1,0 micro Ohm.

I don’t know.

An indicator card from a cylinder of a slow speed diesel engine shows a high maximum pressure occurring earlier in the cycle than normal with a normal compression pressure. From the options given, which action is most likely to identify the cause of the problem?

Check if the fuel injection pump timing is correct.

Check if the fuel filters are blocked.

Check if the fuel viscosity and temperature are correct.

Check if the fuel injection valve is partly blocked.

In the circuit diagram shown the starter connects between which terminals?

7 and 8.

3 and 4.

1 and 2.

5 and 6.

I don’t know.

When measuring level of liquids with a conductivity level indicator, measurement is performed by:

Capacitance probe.

Electrodes.

Ionization chamber.

Displacement probe.

I don’t know.

How is a Safety Management Certificate obtained?

Ship owner has Document of Compliance issued, and vessel is assessed and holds all statutory certificates.

RSS issue SMC with Register.

Vessel is surveyed by MCA and certificate issued.

Ship owner is authorised to carry out internal audits and issue SMC.

Some automated control systems use a master controller and a slave controller. What is the meaning of “remote mode” related to a slave controller?

The slave controller can be turned by a hand carried remote controller.

The slave controller can be in any mode of operation.

The slave controller receives the set-point from the output signal of the master controller.

The slave controller can be turned from the engine control room.

I don’t know.

Which of the following options would be a typical differential pressure setting for a main engine slow down in the event of jacket cooling water system low flow?

0,2 to 0,5 bar.

5 bar.

1 to 2 bar.

10 bar.

In case of a pollution in US waters, who shall notify the cleaning up contractor (OPA-90)?

Qualified Individual.

Emergency response team.

The shipowner.

The Master.

What should be the healthy continuity resistance of a 220 V, 2,2 kW, 10 A heating element, when checked near to it’s rated operating temperature?

22 Ohms.

10 Ohms.

0,1 Ohms.

220 Ohms.

Continuity testing of a delta connected three phase induction motor yields the following results; U-V = 3 ohms, V-W = 3 ohms, W-U = 6 ohms. Which of the following is the likely condition?

Open circuit winding between W and U.

Partial fault between W and U.

Short circuit between V and Earth.

Short circuit between W and U.

What is the advantage of a transmitter with a narrow measurement range?

Do not need any calibration.

Easy installation.

Better linearity and increased accuracy.

Lower purchase cost.

I don’t know.

The fuel tank contents gauges onboard a vessel are of the air bubble and bell type. The gauges are calibrated for a different fuel type to the actual fuel in the tanks. When correcting the actual contents of the tanks from the gauge readings which of the parameters given in the options is the most important?

Fuel viscosity.

Fuel density.

Fuel pour point.

Fuel temperature.

What is the maximum current that a 15 Volt, 3 Watt Zenerdiode can handle without damage?

0,2 A.

20 A.

0,45 A.

0,5 A.

When starting air is applied to a diesel engine the engine fails to turn over but is seen to oscillate back and forth. What is the most likely cause of this problem?

One or more cylinder air start valves are stuck open.

Starting air pressure is too low.

An interlock is blocking the air to the starting air distributor.

The automatic valve has failed to open.

Who is responsible for ensuring that your ship’s security plan meets the requirements of the ISPS Code?

Recognized Security Organization.

Flag State Administration.

Company Security Officer.

Ship Security Officer.

What is the result of an “unusually large metacentric height”?

The vessel will roll slowly or be unstable.

The vessel will have a great bending moment.

The vessel’s tweendeck heights is too high.

The vessel will roll violently.

A galley hot plate uses a Nichrome/Magnesium Oxide heating element and is to be tested before being put into service for the first time. An insulation resistance test yields a reading of 0,3 M Ohm. Which action should be taken?

Apply reduced voltage to the element for a few minutes. Then retest and if ok put into service.

Put the element into service.

Wash the element in a degreasing agent. Then retest and if ok put in into service.

Discard the element.

A portable oxygen analyser for use onboard ship is of the paramagnetic sensing element type. It is being used to test the atmosphere of a space onboard ship but starts to give erratic readings. There is no obvious indication as to why this is happening. Select from the options given the most likely cause of this problem:

The sampling filter is partially blocked giving rise to wide pressure variations in the sampling chamber.

The battery power is low.

Nitrogen gas is present in the atmosphere.

The sampling filter is blocked preventing gas from entering the sampling camber.

The operating mode of a pyrotechnic signal depends essentially on:

Instructions or diagrams printed on its casing by the manufacturer.

The weather conditions of the moment.

The fact that the user is on board a liferaft, a lifeboat or ship.

A definite standard process.

This figure shows a transformer, with two windings, N(1) = 2 000 and N(2) = 1 000 turns, on a common magnetic circuit. Assume that there is no energy loss in the transformer itself. Calculate the current I(2) when the current I(1) = 2 A.

I(2) = 4 A.

I(2) = 2 A.

I(2) = 8 A.

I(2) = 1 A.

Which personnel must undergo familiarization training on board?

Everyone.

Only the ratings.

Only the deck officers.

Only catering staff.

The temperature control for a hot water system is very erratic with the temperature gradually rising and then suddenly falling and vice versa even though system demand is fairly constant. Which of the options given is the most likely cause of this problem?

Control valve gland is over tightened.

Controller integral action reset time is too fast.

Control valve actuator diaphragm is ruptured.

Control air pressure supply is too low.

What is the best method for ensuring that the cylinder powers of a high speed diesel engine, fitted with a monoblock multi-cylinder fuel pump, are correctly balanced?

Have the fuel pump phased and calibrated in a test workshop.

Check the exhaust temperatures on each cylinder to see if they are equal.

Measure the maximum pressure of each cylinder to check that they are equal.

Take a set of indicator cards using a mechanical indicator and calculate the cylinder powers.

A 6-Volt DC relay is to be used with a 12-Volt power supply. The relay requires a current of 0,1 Amp. What is the series resistance required?

60 ohm.

120 ohm.

480 ohm.

80 ohm.

How can a lead-acid type battery be checked to confirm if it is fully charged or not?

Measure the relative density (specific gravity) of the electrolyte.

Measure the battery voltage.

Measure the level of the electrolyte.

Measure the temperature of the electrolyte.

In what kind of measuring equipment might we find a Bourdon-tube?

In a flow meter.

In a pressure transmitter.

In a temperature transmitter.

In an A/D converter.

I don’t know.

A 250 V contactor has been fitted to a 220 V supply. Which of the following symptoms might be observed?

Contactor won’t operate.

Contactor chattering (vibrating).

Contactor constantly on.

Contactor overheating.

I don’t know.

A 3-phase cage rotor induction motor requires protection by a time delay overload trip. What is the reason for this?

Fuses act too quickly.

Fuses act too slowly.

It will allow for inrush current, or motor specific faults.

It will tolerate fault conditions during start up.

I don’t know.

A medium speed diesel engine is used to drive a controllable pitch propeller through a suitable clutch and reduction gearbox. What should the propeller blade attitude normally be after the engine is started and before the clutch can be engaged?

The blades should be in the zero pitch position.

The blades should be in 20 % pitch position.

The blades should be in the full astern position.

The blades should be in the full ahead position.

In a distress situation, how many times or for how long should the emergency alarm signal be sounded?

Until all crew members and passengers have reported to their respective muster stations.

3 times.

Until the signal “risk is over” or the order “abandon ship” is given.

3 minutes.

The current test includes Seagull CES questions on the topic of «Engine». These questions are designed to assess the competence of specialists in preventing accidents related to transport safety and can also be used for self-assessment.

The «Engine – Management Level» subject covers both theoretical and practical knowledge essential for advanced training on any type of vessel. Sailors at the management level in the engine department, such as the Chief Engineer and Second Engineer, are responsible for overseeing the operation, maintenance, and repair of the ship’s machinery and engineering systems. They ensure that all equipment operates efficiently and safely, manage the engine room personnel, and ensure strict compliance with safety and environmental regulations.

Version: 6.0.
Test type: STCW.
Department: Engline.
Level: Management.
Vessel type: any.

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