IDESS iTest – Marine Engineers Test Answers (Engine, Management)
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Amount of questions: 138.
Right answers marked with this sign .
Which of the answer options could be a cause of a crack in a cylinder liner?
Worn or broken piston rings.
Installation of over sized rubber seal rings.
Operating the engine for too long at low loads.
Constant changing from ahead to astern and astern to ahead.
What is likely to occur in fires involving pesticides or fertilizers?
The burning rate will decrease as they decompose to give off CO2.
The burning rate will remain stable.
The burning rate will increase as they decompose to give off oxygen.
These substances are stable and do not decompose when heated.
What do USCG regulations require to be automatically shutdown when the ships fixed CO2 system is activated?
Fuel pumps and ventilation systems.
Supply fans only.
Fuel and lube oil machinery.
Supply and exhaust fans only.
Under Marpol Annex I which of these seas is NOT classed as a \"Special Area\"?
Yellow Sea.
Oman Sea.
Black Sea.
Red Sea.
Fire and flash points of oils assume importance from the point of view of____________.
Heating value.
Ignition and storage hazards.
Viscosity.
Tendancy to freeze during winter.
A methanol fire can be effectively dealt with by using which type of foam extinguisher?
Protein Foam.
Fluroprotein Foam.
Aqueous Film Forming Foam.
Alcohol Resistant Foam.
Under Marpol Annex II, what must each ship carrying Noxious Liquid Substances (NLS) must be provided with?
Shipboard Oil Pollution Emergency Plan (SOPEP).
Operation and Equipment Manual for Crude Oil Washing (COW Manual).
Procedures and Arrangement (P&A) Manual.
Volatile Organic Compounds (VOC) Manual.
Which of these substances are banned from shipboard incineration?
Exhaust gas cleaning system residues.
Plastic.
Oily rags.
Scavenge space sludge.
Whenever the governor of a diesel engine has been drained and the oil renewed which of the adjustments given in the answer options should be carried out?
Speed droop adjustment.
Compensation adjustment.
Idle speed setting.
Load limit control adjustment.
As a rough estimate what would be the percentage wear on a cylinder liner bore that would indicate that the liner needed renewing?
0.5 %.
1.5 %.
0.8-1.0 %.
2.0 %.
What types of oil spill should a SOPEP cover?
Spills resulting from cargo operations.
Leakage from the ships hull.
Oil spills as a result of a collision.
All of the other answer options.
How is the sharing of kilowatt load carried out between two paralleled AC generators?
By controlling amount of field excitation to the leading machine.
By the load-speed characteristics of the governors.
By controlling the amount of field excitation to the lagging machine.
By the number of field poles per alternator.
Two sets of tables are used for correcting cargo volume measurements, what are these tables known as?
Cargo calculation tables.
Shear and bending force tables.
Trim and list tables.
Cargo location tables.
Which of the following oil cargoes are considered to be Static Accumulators as defined by ISGOTT?
Natural, motor and aviation gasolines.
Napthas.
Kerosenes.
All of the other options.
The pour point of lubricating oils is affected the most by which of the following?
Wax content.
Water content.
Acid content.
Anti foaming content.
On a reciprocating two stage stepped piston air compressor the lubrication of the pistons and cylinders is accomplished by_______.
Splash method.
Dedicated lubricating oil pump and metering type cylinder lubricators.
Gravity fed lubricators.
Oil from the bearing lubricating system.
What is the normal period of validity of the IOPP certificate?
5 years subject to mandatory annual, intermediate and periodic surveys.
4 years subject to mandatory annual, intermediate and periodic surveys.
6 years subject to mandatory annual, intermediate and periodic surveys.
8 years subject to mandatory annual, intermediate and periodic surveys.
When mixing two grades of HFO there exists a problem of compatibility. Which of the following actions poses the highest risk of having incompatibility?
Mixing two low density fuels together.
Mixing two high density fuel together.
Mixing low density and high density fuels together.
Mixing fuels of different viscosities.
Why are fire dampers fitted aboard ship?
To prevent passage of smoke and flame through ventilation ducts.
To extinguish fire by denying it additional fuel.
To cool the spaces outside the fire zone.
To use the escape of heat from uptake boilers to regulate accomodation temperatures.
To be classified in Category X, a noxious substance must ...?
Present a hazard to a marine resources or human health or cause harm to amenities or other legitimate uses of the sea.
Present a minor hazard to either marine resources or human health.
Considered to present no harm to marine resources, human health, amenities or other legitimate uses of the sea.
Present a major hazard to either marine resources or human health.
Which of the answer options should be used to determine the load of a three-phase, delta wound, AC generator?
Multiply the amperage in one phase by three.
Divide the total amperage in all phases by three.
Multiply the amperage in one phase by the square root of three.
Divide the total amperage in all phases by the square root of three.
Which MARPOL annex regulates the emissions from shipboard incinerators?
Annex V.
Annex IV.
Annex III.
Annex VI.
What are class \"C\" bulkheads?
Bulkheads constructed of approved non-combustible materials that can withstand the standard fire test for 15 minutes.
Bulkheads constructed of approved non-combustible materials but do not meet any of the requirements relative to smoke and flame nor limitations relative to temperature rise.
Bulkheads constructed of approved non-combustible materials that can withstand the standard fire test for 30 minutes.
Bulkheads constructed of approved non-combustible materials that can withstand the standard fire test for 60 minutes.
Which of the answer options is the most likely cause of governor hunting?
Load limiter is restricting fuel supply.
Speed droop control incorrect.
Slipping clutch on governor motor.
Compensating needle adjustment incorrect.
Why are auto-transformers used for starting some three-phase induction motors?
To reduce the voltage and current applied to the motor during the starting period.
To increase the voltage for "direct on line starting".
To increase the amount of torque available for starting.
To control the speed of start up by adjusting the frequency of the applied voltage.
In an Automatic Alarm System, sensors are activated sequentially. What is the reason for this?
To assist in determining how the fire started.
To assist in determining where the fire started.
To assist in determining which extinguishing agent to use.
To assist in predicting where the fire will spread to next.
What pollution does Marpol Annex II seek to control?
Pollution by ships carrying oil in bulk.
Pollution by ships carrying dangerous goods.
Pollution by ships carrying noxious liquid substances in bulk.
Pollution from ships garbage.
In what document can the information concerning fire sections that are enclosed by \"A\" or \"B\" class divisions be found?
General arrangment drawings.
Safety equipment certificate.
Stabiity booklet.
Fire control plan.
Interlocks should be installed to prevent ash removal doors from being opened while burning is in progress or while the furnace temperature is above_______.
150 deg C.
200 deg C.
220 deg C.
250 deg C.
What is the temperature, at which a lubricating oil will give off sufficient vapors to form combustible mixture with air, is known?
Flash point.
Fire point.
Pour point.
Combustion point.
What does the power factor of an alternator depend on?
Core losses.
Load.
Armature losses.
Rotor speed.
When a vessel violates oil pollution laws, who maybe held responsible?
Officers only.
Ship Owner.
Master.
Anyone involved in the operation leading to the pollution.
What will happen to viscosity when the liquid\'s temperature is increased?
Decrease.
Increase.
Remains the same.
Expand.
Which of the statements in the answer options describes the synchronous speed of an induction motor?
It is the speed at which the shaft rotates.
It is the frequency of the rotor current.
It is the speed of the stator s magnetic field rotation.
It is slip in per cent of rotor RPM.
MARPOL Annex II, Regulation 17 requires that vessels above a certain tonnage, certified to carry noxious liquid substances, must have a Shipboard Marine Pollution Emergency Plan. Which of the answer options is mandatory information required in such a plan?
Instructions on when to use any pollution response equipment carried.
Identification of personnel responsible for the deployment and maintenance pollution response equipment.
An inventory of pollution response equipment carried.
The procedure to report incidents.
The steering gear maximum torque should be .........
The effective torque at the safety valve opening pressure.
The maximum torque to be created by the steering gear, according to the makers experience.
At least the torque necessary to turn the rudder to the maximum required angle at the vessel s full speed according to the class rules.
Any of the above.
Orders, messages and signals during an emergency response should...?
Be kept extensive and detailed.
Be kept short and precise.
Be kept in not more than two languages.
Be kept polite and respectful.
Upon completion of loading a cargo tank with a Static Accumulator oil, when is it safe to introduce metal equipment for dipping, ullaging or sampling, as recommended by ISGOTT?
Not less than 30 minutes after completion of loading.
As soon as loading has been completed.
Not less than 10 minutes after completion of loading.
Not less than 20 minutes after loading.
The emissions from ships incinerators are regulated by which MARPOL Annex ... ?
V.
IV.
VI.
III.
What will happen if a running, three-phase, AC induction motor starts single phasing?
The motor will continue to run if it is not heavily loaded.
The remaining two phases will begin to take more current and the motor will heat up.
The motor may become noise and vibrate due to the uneven torque produced by the motor.
All of the other answer options.
During an inspection of a crankcase on a two-stroke propulsion engine it was discovered that there were cracks beneath the bearing pocket of a transverse girder. What could be the cause?
Uneven loading.
All of the other answer options.
Over loading.
Loose tie bolts.
What is the volume of the cargo at 60° F known as?
It is called the Gross Standard Volume (GSV).
It is called the Gross Observed Volume (GOV).
It is called the Total Observed Volume (TOV).
It is called the Total Loaded Volume in cubic meters.
Which of the operating conditions listed in the answer options would have the greatest effect on the compressors volumetric efficiency?
The density of the air entering the compressor.
The temperature of air entering the compressor.
Humidity of the air entering the compressor.
Leaking head gasket.
IACS states \"Where batteries are fitted for use for essential and emergency services a maintenance schedule of such batteries is to be compiled and maintained\". Which of the following details do NOT need to be recorded?
Battery voltage and ampere-hour rating.
Dates of last battery maintenance and/or battery replacement date.
The battery charging system.
Location of batteries and the equipment and/or system that they serve.
Cavitation erosion in the cooling water system of a diesel engine usually occurs at the pump impeller and on the waterside of the ____________.
Fuel nozzle holders.
Engine cylinder liners.
Exhaust valve guides.
Engine exhaust manifold.
How long must the 15 ppm Bilge Alarm Monitor record data?
For at least 18 months.
For at least 6 months.
For at least 12 months.
For at least 30 months.
How many means of escape from each machinery space are required?
At least three.
At least two.
One.
There is no specified requirement.
Which of these is the likely reason why a centrifugal pump cavities?
High pressure in the suction side of the impeller.
Pumping at high speed with good suction head.
Pumping with low revolution at high suction head.
Low pressure in the suction side of the impeller.
What is the relationship between viscosity and specific gravity?
Liquids with different viscosities will never have the same specific gravity.
Viscosity and specific gravity are directly proportional.
Viscosity and specific gravity are independent of each other.
Liquids with different viscosities will always have the same specific gravity.
How often must cargo hoses be tested?
Annually.
Every 5 years.
During dry docking.
Not required to be tested.
After an accident involving dangerous chemicals, where will you find the correct first aid procedures for dealing with casualties?
In SOLAS.
In the MSDS for each cargo.
In the ships Muster List.
In STCW.
Every substance must be assigned a pollution category before it may be carried in bulk aboard ship. Which body assesses and assigns the pollution category for each substance?
The chemical manufacturer assesses and assigns the pollution category and indicates this on the material safety data sheet.
The International Chamber of Shipping assesses and assigns the pollution category and indicates this on the ICS chemical data sheets.
The IMO group of expert scientists on marine pollution assesses and assigns the pollution category and indicates this through the IBC and BCH Codes, and circulars of the IMO Technical Committee.
The joint Group of Experts on the Scientific Aspects of Marine Environmental Protection(GESAMP) assesses and assigns the pollution category, and indicates this through Chapter 17 of the IBC Code and circulars of the Marine Environmental Protection Committ.
Which of the answer options correctly lists the tanks that must be Crude Oil Washed at every discharge port?
All tanks intended for ballasting.
All cargo tanks.
Half of all cargo tanks.
One quarter of all cargo tanks.
With reference to liquid cargoes, what is a “Static Accumulator” as defined by ISG OTT?
A substance that is a very good electrical conductor which releases charge quickly.
A substance that prevents the accumulation of charge.
A substance that is a very poor electrical conductor which retains charge.
A substance that must have no motion and be in the static condition to be able to accumulate charge.
Which of the answer options would be applicable when charging a 100 amp-hour 12 V lead-acid battery?
The temperature of the electrolyte should not be allowed to exceed 32 deg C.
The source of power for charging should be 2.3 to 2.45 volts per cell.
The charging rate should be no greater than 125 % of the battery amp-hour rating.
Gassing within the battery decreases when nearing full charge and it will be necessary to reduce the charging current to a low finishing rate.
Where must this placard be sited?
Bridge.
Crew accommodation.
On deck.
Bilge and ballast pump control stations.
What is Total Observed Volume (TOV) less Free Water (FW)?
Gross Observed Volume.
Gross Standard Volume.
Total Standard Volume.
Volume at observed temperature.
The SOPEP is required to be prepared for what type of oil spills?
Spills resulting from cargo operations.
Spills and leaks from machinery spaces.
Oil spills as a result of a collision.
All of the other answer options.
Emergency lead-acid batteries on board ships are commonly kept fully charged over long periods of disuse. Which charging method is this usually accomplished by?
Float charging.
Trickle charging.
Taper charging.
Pulse charging.
Which of the documents in the answer options stipulates the requirements for SMPEP?
MARPOL Annex II.
Procedures & Arrangement Manual.
SOLAS Convention.
IBC Code.
Which dry chemical is an effective extinguishing agent for Class A, Class B and Class C fires?
Potassium Bicarbonate.
Sodium Bicarbonate.
Monoammonium Phosphate.
Calcium Carbonate.
For a vessel with a gross tonnage of 15 000 and above, what is the minimum capacity of the Bilge Separator?
5.0 m3/hr.
4.0 m3/hr.
2.5 m3/hr.
3.5 m3/hr.
Which of the following statements is NOT correct?
The main steering gear and the auxiliary steering gear shall be so arranged that the failure of one of them will not render the other one inoperative.
The main steering gear is so arranged that after a single failure in its piping system or in one of the power units the defect can be isolated so that steering capability can be maintained or speedily regained.
A low-level alarm for each hydraulic fluid reservoir to give the earliest practicable indication of hydraulic fluid leakage. Audible and visual alarms shall be given on the navigating bridge and in the machinery space where they can be readily observed.
A storage tank, with contents gauge, shall be provided outside the steering gear compartment with sufficient oil to charge at least one power actuating system including reservoir.
SOLAS regulation requires that fuels used on board shall not have flash point of less than___.
70 Deg C.
50 Deg C.
60 Deg C.
80 Deg C.
Why is it important that the loading rate should be equal to the rate of flow of gases through the vapour recovery system?
Avoid release of vapour or drawing in of fresh air in tanks.
Comply with port requirements when operating the system.
Prevent cargo spillage during topping-off operation.
There are no requirements concerning this matter.
Stainless steel\'s ability to form and restore its protective chromium oxide layer is known as?
Galvanic action.
Passivation.
Electrolytic effect.
Polymerization.
What method should be used to increase the frequency of an operating AC generator?
Increase the speed of the driving unit.
Increase the number of magnetic poles.
Increase the excitation.
Decrease the excitation.
A chemical tanker is carrying a cargo of vegetable oil. Which of the following mediums is unsuitable for use in heating this cargo?
Steam.
Hot water.
Thermal oil.
All of the other answer options.
At the start of loading gasoline into a cargo tank what is the initial safe flow rate as recommended by ISGOTT?
Not to exceed 7 metre/second.
There is no recommended safe rate.
Not less than 1 metre/second.
Not to exceed 1 metre/second.
In which of these sea areas are you not allowed NLS discharges during tank cleaning?
Baltic Sea.
Antarctic Area.
Mediterranean Sea.
Atlantic Ocean.
With what cargo heating medium is there no risk of freezing, even in the coldest conditions?
Steam.
Hot water.
Thermal oil.
Dry powder.
As master of a chemical tanker, MARPOL Annex II requires that you sign the cargo record book. Where must you sign this record?
After every entry.
On every page.
After completion of each cargo activity.
After completion of the final entry.
What is the pH of a solution a measure of?
Hydrogen ion activity.
Percentage of hydrocarbons.
Solubility of liquid.
Range of flammability.
Type I chemical tankers are designed with the maximum of preventative measures to prevent escape of cargo into the environment. What are these ships permitted to carry?
Any chemical or noxious liquid substance.
Any chemical or noxious liquid substance compatible with the tank coatings.
Any chemical or noxious liquid substance listed in chapter 17 and 18 of the IBC Code.
Any chemical or noxious liquid substance listed in the international certificate of fitness for the carriage of dangerous chemicals in bulk.
Which of these is the best construction material most resistant to chemicals?
Clad steel.
Stainless steel.
Line steel.
Mild steel.
What capacity must the stripping eductor used in COW operations have, in relation to the total throughput of COW machines?
A minimum of 25 % less.
Same as the throughput.
A Minimum of 10 % greater.
A minimum of 25 % greater.
The energy transformation within a centrifugal pump follows which of the answer options?
Pressure is converted into kinetic energy by the impeller; this kinetic energy is converted to an increase in velocity by the volute casing.
The impeller creates centrifugal force, which increases the liquid velocity, an increase in velocity means an increase in kinetic energy, the increased kinetic energy is converted into pressure by reducing the velocity in the volute casing.
Decreasing the velocity in the impeller decreases the kinetic energy, decreasing the kinetic energy whilst increasing the velocity of the fluid in the volute casing increases its pressure.
The impeller creates centrifugal force, which increases the liquid velocity, an increase in velocity means a decrease in kinetic energy, the decreased kinetic energy is converted head pressure.
Why is it very important to carry out pressure testing of the COW system prior to arrival in the discharge port?
Ensure tightness of the COW system and prevent pollution in port.
Comply with company requirements and checklist prior arrival.
Avoid fines and penalties upon arrival in port.
Maintain record of test and maintenance of the system.
The oxygen content of the cargo tanks must be checked prior to loading cargoes requiring vapor recovery. At which points must samples be taken?
One meter from the tank bottom and one meter below the tank top.
One half of the ullage of the tank and one meter below the tank top.
One half of the ullage of the tank and one meter from tank bottom.
At five meter intervals from below the tank top.
It is the line where water and oil meet. What is it called?
The Interface.
The Ullage.
The Innage.
The Sounding.
What is the determining factor of the number of tank cleaning machines that can be used at one time?
The volume of water supplied to the eductor.
The distance of the tank washing machines from the cargo pump.
The capacity of the eductor.
The wash water pressure in the tank washing line.
Which of the operating conditions listed in the answer options would have the greatest effect on the compressors volumetric efficiency?
The density of the air entering the compressor.
The temperature of air entering the compressor.
Humidity of the air entering the compressor.
Leaking head gasket.
On a reciprocating two stage stepped piston air compressor the lubrication of the pistons and cylinders is accomplished by_______.
Splash method.
Dedicated lubricating oil pump and metering type cylinder lubricators.
Gravity fed lubricators.
Oil from the bearing lubricating system.
Two sets of tables are used for correcting cargo volume measurements, what are these tables known as?
Cargo calculation tables.
Shear and bending force tables.
Trim and list tables.
Cargo location tables.
Whenever the governor of a diesel engine has been drained and the oil renewed which of the adjustments given in the answer options should be carried out?
Speed droop adjustment.
Compensation adjustment.
Idle speed setting.
Load limit control adjustment.
How can hunting be corrected on a diesel engine equipped with a hydraulic speed control governor?
By changing the accumulator spring compression.
By replacing the balance piston.
By adjusting the compensating needle valve.
By adjusting the proportional piston.
Which of these statements best describes the reason why bilge water holding tanks have heating coils?
Heating coils are only required for ships that are sailing in cold climates, and serve to protect the mixture from freezing.
Heating the mixture helps to reduce the oil content by increasing the rate of evaporation of the oil.
Bilge water holding tanks are not fitted with heating coils due to the risk of explosion.
Heating the mixture increases the difference in relative densities of water and oil and aids separation.
When a vessel violates oil pollution laws, who maybe held responsible?
Anyone involved in the operation leading to the pollution.
Officers only.
Ship Owner.
Master.
A ship is in port and ready to proceed to sea, however the OWS is not functioning properly. Which answer option correctly describes what the ship is allowed to do under in these circumstances?
The ship can leave the port provided the OWS can be repaired at the next port.
The ship is not allowed to leave port until the OWS is repaired and in good working order.
The ship can leave port if your company head office give permission.
The ship can leave port provided the overboard discharge from the OWS is sealed shut by Port State Control.
How long must the 15 ppm Bilge Alarm Monitor record data?
For at least 18 months.
For at least 6 months.
For at least 12 months.
For at least 30 months.
Which of the answer options would be applicable when charging a 100 amp-hour 12 V lead-acid battery?
The temperature of the electrolyte should not be allowed to exceed 32 deg C.
The charging rate should be no greater than 125 % of the battery amp-hour rating.
The source of power for charging should be 2.3 to 2.45 volts per cell.
Gassing within the battery decreases when nearing full charge and it will be necessary to reduce the charging current to a low finishing rate.
Emergency lead-acid batteries on board ships are commonly kept fully charged over long periods of disuse. Which charging method is this usually accomplished by?
Float charging.
Trickle charging.
Taper charging.
Pulse charging.
IACS states \"Where batteries are fitted for use for essential and emergency services a maintenance schedule of such batteries is to be compiled and maintained\". Which of the following details do NOT need to be recorded?
Battery voltage and ampere-hour rating.
Dates of last battery maintenance and/or battery replacement date.
Location of batteries and the equipment and/or system that they serve.
The battery charging system.
Why are auto-transformers used for starting some three-phase induction motors?
To reduce the voltage and current applied to the motor during the starting period.
To increase the voltage for "direct on line starting".
To increase the amount of torque available for starting.
To control the speed of start up by adjusting the frequency of the applied voltage.
Which of the statements in the answer options describes the synchronous speed of an induction motor?
It is the speed at which the shaft rotates.
It is the speed of the stators magnetic field rotation.
It is the frequency of the rotor current.
It is slip in per cent of rotor RPM.
Which of the answer options is a reason for using auto-transformers to start large AC motors?
It increases voltage for starting.
It increase torque for starting.
It reduces voltage for starting.
It provides greater speed control.
What will the frequency be of an AC generator with 4 pair of stator poles and a rotor speed of 900 rpm?
50 Hz.
60 Hz.
40 Hz.
90 Hz.
When paralleling two alternators, which of the conditions given in the answer options should be the same for both alternators?
Speed.
Frequency.
Voltage.
All of the other answer options.
What method should be used to increase the frequency of an operating AC generator?
Increase the speed of the driving unit.
Increase the number of magnetic poles.
Increase the excitation.
Decrease the excitation.
What does the power factor of an alternator depend on?
Core losses.
Load.
Armature losses.
Rotor speed.
What are class \"C\" bulkheads?
Bulkheads constructed of approved non-combustible materials that can withstand the standard fire test for 15 minutes.
Bulkheads constructed of approved non-combustible materials that can withstand the standard fire test for 30 minutes.
Bulkheads constructed of approved non-combustible materials that can withstand the standard fire test for 60 minutes.
Bulkheads constructed of approved non-combustible materials but do not meet any of the requirements relative to smoke and flame nor limitations relative to temperature rise.
In what document can the information concerning fire sections that are enclosed by \"A\" or \"B\" class divisions be found?
General arrangment drawings.
Safety equipment certificate.
Fire control plan.
Stabiity booklet.
Which of these detectors will give the earliest warning of fire?
Flame detector.
Smoke detector.
Heat detector.
Rate of rise detector.
What type of fire detector is this?
A heat detector.
A flame detector.
A smoke detector.
A rate of rise detector.
What is the minimum number of fire pumps cargo ships of over 1 000 gt are required to have?
One plus emergency fire pump.
Two plus emergency fire pump.
Three plus emergency fire pump.
Four plus emergency fire pump.
Dry chemical is often used in combination with foam to extinguish fire. Which dry chemical is NOT compatible with protein foam?
Monoammonium Phosphate.
Potassium Bicarbonate.
Potassium Acetate Solution.
Sodium Bicarbonate.
How many people are required to be in a search and rescue team as a minimum?
Two.
Three.
Four.
Six.
Orders, messages and signals during an emergency response should ...?
Be kept extensive and detailed.
Be kept short and precise.
Be kept in not more than two languages.
Be kept polite and respectful.
The Emergency Response Team\'s first responsibility and aim is to ...?
save lives.
protect cargo.
prevent pollution.
start the emergency fire pump and power supply.
According to SOLAS where can shore side fire fighting personnel find necessary information on ship\'s fire control systems in an emergency situation?
Information will be provided by the Master.
A copy of the fire plan is provided to the agent in case of emergency.
The information can be found in a container next to the ship s gangway.
A copy of f ire control plans or a booklet containing such plans shall be permanently stored in a prominently marked weathertight enclosure outside the accommodation superstructure.
Which statement is true for an oil with a high viscosity index?
No change in viscosity occurs with a change in temperature.
The viscosity of the oil increases with increases in temperature.
A large change of viscosity occurs with changes of temperature.
Very little change in viscosity occurs with a change in temperature.
An additive used to improve the ability of a lube oil to reduce friction is known as a/an ...
acid neutralising additive.
anti corrosion additive.
extreme pressure additive.
viscosity improver additive.
What is the temperature, at which a lubricating oil will give off sufficient vapors to form combustible mixture with air, is known?
Flash point.
Fire point.
Pour point.
Combustion point.
For what period of time does Marpol Annex VI require that Bunker Delivery Notes (BDN) be retained on board?
12 month.
36 months.
18 months.
24 months.
What is the ignition quality of diesel fuel indicated by?
Octane number.
Viscosity.
Cetane number.
Flash point.
When loading bunkers in accordance with Annex VI of MARPOL, where should the bunker sample be taken from?
A tank onboard the bunker barge.
A tank onboard the receiving vessel.
From the manifold of the Bunker barge.
From the manifold of the receiving vessel.
If garbage is incinerated on board, where must it be recorded?
Cargo log book.
Garbage record book.
Engine log book.
Bridge log book.
Which one of the following alarm conditions is NOT designed to shut down the incinerator?
Flue gas temperature high.
Furnace temperature high.
Furnace negative pressure.
Waste oil tank level high.
Which MARPOL annex regulates the emissions from shipboard incinerators?
Annex V.
Annex IV.
Annex VI.
Annex III.
Information concerning the incinerator IMO Type Approval are required for which certificate?
EIAPP.
IAPP.
SMC.
ISPP.
During an inspection of a crankcase on a two-stroke propulsion engine it was discovered that there were cracks beneath the bearing pocket of a transverse girder. What could be the cause?
Uneven loading.
Over loading.
Loose tie bolts.
All of the other answer options.
Which of the answer options can be calculated after completing the measurement of a cylinder liner and results tabulated?
The ovality of the liner.
All of the answer options.
Expected life of the liner based on current wear rates.
Wear rate/1 000 running hours.
As a rough estimate what would be the percentage wear on a cylinder liner bore that would indicate that the liner needed renewing?
0.5 %.
0.8-1.0 %.
1.5 %.
2.0 %.
What is required for a crosshead type engine that has a scavenge space in open connection to the cylinder?
The scavenge space must be permanently connected to the engine room fire fighting system.
Each crankcase door must be fitted with an explosion device.
The scavenge space must have a means of isolating the scavenge air in the system.
The scavenge space must be permanently connected to a fire extinguishing system, which must be independent to the engine room fire extinguishing system.
Marpol Annex I is ...
Optional for all signatory countries.
Optional if Annex II is implemented in full.
Mandatory for all signatory countries.
Mandatory for all countries.
What maximum total of oil cargo is permitted to be pumped overboard from an oil tanker?
1/10 000th of the total amount of the cargo carr ied on the previous voyage.
1/30 000th of the total amount of the cargo carried on the previous voyage.
500 MT.
No cargo oil is permitted to be pumped overboard.
What is the normal period of validity of the IOPP certificate?
5 years subject to mandatory annual, intermediate and periodic surveys.
4 years subject to mandatory annual, intermediate and periodic surveys.
6 years subject to mandatory annual, intermediate and periodic surveys.
8 years subject to mandatory annual, intermediate and periodic surveys.
Bunkering operations must be logged in ...?
The Engine Log Book.
The Deck Log Book.
The Oil Record Book Part I.
The Oil Record Book Part II.
What pollution does Marpol Annex II seek to control?
Pollution by ships carrying noxious liquid substances in bulk.
Pollution by ships carrying oil in bulk.
Pollution by ships carrying dangerous goods.
Pollution from ships garbage.
Marpol Annex II lists Noxious Liquid Substances (NLS) into certain categories. Which category is deemed to be the most hazardous to marine environment or human health?
Category X.
Category Y.
Category Z.
Category Other Substances.
When a country signs the Marpol treaty what are its obligations with respect to the regulations contained in Annex II?
They may implement the regulations or not, as Annex II is Optional for all signatory countries.
They must implement them in full as Annex II is mandatory for all signatory countries.
They may treat Annex II as optional if Annex I is implemented in full.
They must implement the regulations contained in chapters 1 to 5 of Annex II and may treat chaper 6 to 8 as optional.
What is the stripping requirement for category X & Y cargoes, for BCH vessels?
75 liters.
100 liters.
300 liters.
900 liters.
Which is the following oil cargoes is not considered to be a Static Accumulator as defined by ISGOTT?
Residual fuel oils.
Jet fuels.
Kerosenes.
Napthas.
With reference to liquid cargoes, what is a “Static Accumulator” as defined by ISGOTT?
A substance that is a very good electrical conductor which releases charge quickly.
A substance that prevents the accumulation of charge.
A substance that is a very poor electrical conductor which retains charge.
A substance that must have no motion and be in the static condition to be able to accumulate charge.
Which of the following oil cargoes are considered to be Static Accumulators as defined by ISGOTT?
Natural, motor and aviation gasolines.
Napthas.
Kerosenes.
All of the other options.
At the start of loading gasoline into a cargo tank what is the initial safe flow rate as recommended by ISGOTT?
Not to exceed 1 metre/second.
Not to exceed 7 metre/second.
There is no recommended safe rate.
Not less than 1 metre/second.
Simple operating instructions with a block diagram showing the change-over procedures for remote steering gear control systems and steering gear power units are required to be permanently displayed ......... .
On the bridge only.
On the bridge and adjacent to steering gear.
Adjacent to steering gear only.
On bridge and engine control room.
In a rotary vane type steering gear, what would be the likely reason why the rudder reacts slowly to the steering signal?
The actuator internal seals are worn.
The main control valve is sticking.
The solenoid valve is sticking.
The gland ring is loose.
Welcome to the website where you can pass online the IDESS iTest on the subject «Engine, Management level». This test is tailored for Chief Engineers working on Chemical Tankers, but also can be useful for anyone, working in Engine Department. Practice like this will help you as a marine specialist improve your knowledge with the help of online studying and appraisal practice. iTest based on practical information and marine specialists experience.
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About
Senior Mate with 12+ years of experience in the international merchant marine.
- Development and implementation of navigation and on-board safety plans.
- Supervising the work of the crew and assisting the captain in managing the vessel.
- Participation in training of junior crew, ensuring compliance with safety standards.
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October, 12, 2026 30 0
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