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Главная Онлайн-тесты CES Oil tanker Deck Support Онлайн-тест CES 5.1 для Deck department, Support level, Oil tanker vessel
Онлайн-тестирование: Онлайн-тест CES 5.1 для Deck department, Support level, Oil tanker vessel
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Вопрос 1 из 90
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Which of the following is a precautionary measure to prevent fire:
All the answers are good
Storing rags impregnated with oil in closed containers
Emptying dust bins
Cleaning dirty surface
The button or switch “dimmer” of a mariphone serves:
To regulate the light
To suppress the noise
To reduce the volume
To regulate the transmitting power
The following information must be given on the SART:
Date of replacement of the battries
The date of replacement of the hydrostatic release unit
The name of the operator
The MMSI number sent
In radio-traffic with a coast-station, a “personal call” means that one wishes:
to have a telephone conversation with a person whose name is known
to request a telephone alert call
Don't know
to have a telephone conversation for account of a requested shore subscriber
In relation ot OPA 90, Which of the following statement is correct?
COTP-zones may have additional rules and regulations
OPA-90 specify all oil cargo related rules and regulations
OPA-90 specify rules and regulations for all COTP-zones
After implementation of OPA-90 there are no area specific rules and regulations
If you are required to splice an eye on a mooring wire (using the recommended 5 full tucks and 2 half tucks) the effective breaking strength of the wire will now be affected by the splice, and you would expect:
A reduction in strength of 30 % to 40 %.
A reduction in strength of 1% to 5%.
A reduction in strength of 10 % to 15 %.
No reduction in strength.
You are sailing in shallow water with 15% Under Keel Clearance. Coming full astern from full ahead, how will your changed course compare to deep water?
Large change at first, then changing slightly
The heading will most likely change by a large amount
The heading will not change at all
The heading will change only slightly
Should recommended route information be used in conjunction with weather routing?
Sometimes
Yes
No
Only if recommended by weather routing
To choose the HF-band, the time difference between 2 stations is:
irrelevant
Don't know
is hardly relevant
is important
In describing an oil cargo, what is its "pour point"?
The lowest temperature at which a gas converts back to liquid
The lowest temperature at which it will remain fluid
The temperature as recorded during the taking of cargo samples
The temperature necessary for a cargo to load from shore by gravity alone
What are we seeing here?
A sailing vessel, at anchor.
A sailing vessel of less than 10 metres in length, displaying the mandatory combined lantern inlieu of sailing lights, seen head-on.
A sailing vessel less than 20 metres in length, displaying the optional combined lantern in lieu of standard sailing lights, seen head-on.
A sailing vessel, seen from astern, where the edges of her sidelights are both visible.
There are many types of pumps fitted onboard ship which an engine room rating may be required to assist with the maintenance of. Which type of pump is shown in the illustration?
A scroll pump.
A centrifugal pump.
A reciprocating pump.
A gear pump.
While securing tank lids prior to loading, you notice that the packing from one is damaged and hanging down. What will you do?
Cover the damaged area of packing with silicone and secure the lid. Make an entry in the "defect log" at the end of your watch.
Push the packing back up into the channel as best as you can and secure the lid.
Secure the lid and report the damaged packing to the pumpman for changing later on.
Report it immediately to the duty officer. Notify other watchkeepers, so that the lid is not closed in error, prior to the problem being rectified.
Signals are often used by aircraft engaged in search and rescue operations to direct ships towards a casualty. This aircraft flies across your stern, rocking his wings. What is the meaning of the signal?
The aircraft is telling me he does not understand my last message.
The assistance of your vessel is no longer required.
This is part of a sequence of manoeuvres by which the aircraft will indicate a direction for my vessel to proceed in.
The aircraft is telling me he is preparing to drop supplies or personnel in the water.
What action should be taken if the inert gas plant fails during discharge of a liquefied gas cargo?
Slow down the discharge rate until the IG plant is working again.
Open the atmospheric vents to prevent a vacuum in the cargo tanks.
Stop all cargo operations and inform the terminal.
Open the vapour return line from shore to prevent a vacuum in the cargo tanks.
What is known as "cargo sweat" on a Bulk Carrier?
Condensation of moisture directly onto the ships structure
Condensation of moisture directly onto the cargo
Condensation of moisture onto the ships structure and cargo
Heating of cargo
When the temperature of lubricating oil is lowered, an increase will occur in the:
Concentration of contaminants.
Viscosity.
Pour point.
Flash point.
Where is the acceptable location to smoke while on duty, or working in a cargo deck stowed with containers?
The designated smoking area inside the accommodation or on deck?
Smoke close to an entrance to the cargo deck?
Carefully smoke outside the container stowage area?
There is no smoking allowed while on duty?
One particular group of hazardous goods is highlighted by the IMDG Code as potentially being the most dangerous for carriage. Which of the following is it?
Organic peroxides.
Liquefied gases.
Infectious substances.
Toxic substances.
Some fresh shrimps have been peeled ready for serving; some salad leaves have been washed ready for the same meal. The meal will not be served for another four hours. What will you do with these ingredients in the meantime?
The shrimps and the salad will be placed in separate containers, covered and placed in the refrigerator until required.
The shrimps will be placed in the refrigerator and the sald placed in cold water, to keep it fresh.
The shrimps and the salad will be placed in separate containers, covered in foil and left on the bench until required.
The ingredients will be combined, seasoned and dressed, transferred to open serving dishes, then placed in the refrigerator until required.
What is essential with liquefied gas fires
To isolate the fuel source before extinguishing the flames on a gas fire
To cool down the surroundings and extinguish the fire
To immediately start extinguish the flames with water
To evacuate the area
The ship is en route. When may passengers visit the bridge?
When the weather is nice and the sea is calm
Whenever they want
Passengers are not allowed to visit the bridge while the ship is en route
During daytime if the traffic is smooth
What is a Marine Evacuation System?
Liferafts supported by Fast Rescue Boats and Lifeboats
Evacuation Chute(s)/Slide(s) and Liferafts
Helicopter evacuation
Assistance from other ships
What do you understand by the term Slewing?
Making the grab bucket/hook move up and down.
Making the complete crane move port and starboard.
Making the crane jib move up and down.
Making the crane jib move from side to side.
On a Container vessel, what can cause large loads in lashings when containers are secured to a lashing bridge?
The lashing bridge is flexible but the hatch covers are fixed, causing the lashings to go alternately slack and tight
The lashing bridge is fixed but the hatch covers move when the ship rolls and pitches, causing the lashings to go alternately slack and tight
Due to flexibility of the hatch covers
Due to inflexibility of the lashing bridge
When working in parts of the inert gas system such as the scrubber or deck water seal, what procedure must be followed?
Normal working practice.
Working with self contained breathing apparatus (SCBA).
Enclosed space entry.
Working aloft.
How often shall drills for the operation of watertight doors, side scuttles, valves and closing mechanism of scuppers, ash-chutes and rubbish chutes take place in passenger ships?
Every month
Weekly
Daily
Every two weeks
What is often done prior to loading grain in cargo holds which are sweating?
Portable fans are used to dry the holds
Steelwork within the holds is covered with kraft paper
Steelwork within the hold is covered with plastic
Grain dust is blown into all parts of the hold via the grain elevator
The correct time to synchronise is usually taken to be when the synchroscope reaches the "5 to 12" position and is rotating slowly clockwise. This to allow for:
Generator phase difference error
Circuit breaker operating time
Synchroscope error
Synchroscope pointer time lag
A centrifugal pump gland has been repacked following overhaul of the pump. Which of the procedures given in the options is the correct method to ensure the pump shaft does not overheat when the pump is operating?
Tighten the gland to half way travel of the gland follower.
Tighten the gland follower as much as possible and then slacken it back again by one turn of the gland nuts.
Gradually tighten the gland follower with the pump running until leakage at the gland stops.
Gradually tighten the gland follower with the pump running until the leakage is just a small steady flow.
The Safety Management Manual contains checklists that are:
clear, concise summaries of all action items in the emergency plan
clear, concise summaries of critical action items in the emergency plan
to be used when crewmembers feel especially stressed in emergencies
detailed
What medium is used to calibrate the ODME?
Fresh water.
Gasoline.
Sea water.
Crude oil.
Which of the following could be the possible cause of too high cargo condenser pressure?
Incondensible vapour in the cargo and shortage of refrigeration.
Incondensible vapour in the cargo.
Broken discharge valve plate.
Shortage of refrigeration.
Cargo heaters are frequently used when discharging refrigerated LPG cargoes into pressurised shore tanks. What would be a typical "heating range" required from a heater for discharge of fully refrigerated propane?
From - 55 C to - 15 C.
From -25 C to +15 C.
From - 45 C to - 5 C.
From - 35 C to + 5 C.
Which of the following alternatives are recommended when decanting water overboard from the sloptank?
Maintain a speed of at least 12 knots when pumping overboard
Leave a "cushion"of water in the sloptank, to minimize the risk of polluting the sea
Using dispersing chemicals in the sloptank
Discharge under the waterline to avoid any sheen on the surface
When you are calibrating an instrument what is the most common second step in the procedure (consult the manual)
Adjustment of span
justment of Zero-point
Adjustment of range
Check linearity
Which is the "FORWARD SPRING", in the figure?
The Forward Spring is indicated by C, in the figure
The Forward Spring is indicated by D, in the figure
The Forward Spring is indicated by A, in the figure
The Forward Spring is indicated by B, in the figure
What does the word "condiments" refer to?
A sauce or seasoning, such as mustard or pepper.
Persons suffering from food poisoning.
Bread rolls.
Orders for a meal.
What is the purpose of Material Safety Data Sheets?
To provide all personnel including emergency personnel with procedures for handling or working with that substance in a safe manner
To provide personnel in deck- and engine department with procedures for handling or working with that substance in a safe manner
To provide the safety officer with procedures for handling or working with that substance in a safe manner
To determine if the substance is flammable or not
You are carrying a bulk cargo of Phosphoric Acid. Which components of the cargo pumps may be damaged as a result of discharging this particular cargo and why?
The cargo seals may be damaged from the abbrasive effect of any sediment.
The valves in the associated piping may be distorted by pressure surges created by cavitation as the acid is discharged.
The outer casing may be corroded by the unstable impurities within the acid.
The impeller veins may be damaged as a result of the relatively high density of the cargo if the pumps are run at too high a speed.
Why is the inlet to the slop tank often directed towards the bulkhead (see the illustration) ?
None of the mentioned
To reduce the settling time
To avoid build-up of static electricity, which may cause explosion
To avoid too much agitation of the oily water in the tank
If a cargo has a literweight 0f 1.5 kg/l at 15° and a correction factor of 0,001, what is the literweight at 20° C ?
1.495 kg/l
1.4995 kg/l
1.505 kg/l
1.5005 kg/l
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 battery power is low.
The sampling filter is blocked preventing gas from entering the sampling camber.
Nitrogen gas is present in the atmosphere.
The sampling filter is partially blocked giving rise to wide pressure variations in the sampling chamber.
Representative of the port authorities should always receive the best possible treatment:
For ship's clearance to take place quickly and without complications
Because the ship's trading certificate are not normally in order
Because you always have some faults in arrival/departure documents
Because you have undeclared dutiable items in excess of permitted on board
What does not apply to the carriage of timer deck cargoes?
The International Tonnage Convention
The Code of Safe Practice for Stowage and Securing of Cargoes
The International Convention on Loadlines
SOLAS 74/78
The ship's crew are carrying out maintenance on the weather deck hatch lids of a refrigerated cargo space. Which of the parts given in the options will have the greatest influence on maintaining cargo temperature in relation to the hatch lid system?
The condition of the hatch lid wheels.
The condition of the hatch lid seals.
The condition of the hatch lid hinges.
The condition of the hatch lid trackway.
Which statement is true?
Normal temperature of the lub oil after the cooler is approx. 45 C.
When the ME is running, the Fresh Water enters the engine at the top and leaves the engine at the bottom
Normal temperature of the oil after the cooler is approx. 65 C.
Minimum scavening air temperature is 60 C to avoid dewing in the scavening air cooler
What is the purpose of an automatic trip system onboard, and how does this function?
Automatic trip is to avoid tanks being cooled too much, the trip function is often initialised by a float switch or a temperature switch.
Automatic trip is to avoid vacuum to be generated in cargo tanks.
Automatic trip is to avoid over pressurising in cargo tanks and other pressurised vessels, the trip function is often initialised by a float switch.
Automatic trip is to avoid tanks and pressurised vessels becoming overloaded, the trip function is often initialised by a float switch.
To which of the following ratios are transverse accelerations related?
Ship’s breadth divided by LCB
Ship’s breadth divided by the maximum righting lever
Ship’s breadth divided by GM
Ship’s breadth divided by the distance between cargo units and the ship's centreline
Which of these steps (in shut-down procedure) shall be executed last?
Shut down of inert gas blower
Close the gas pressure control valve
Close the flue gas uptake
Open ventilation valve to atmosphere
What happens during Parametric Rolling when a wave trough is amidships?
There is a reduction in righting levers
There is loss of GM
There is an increase in righting levers
There is a likelihood of the ship rolling violently
When is the 2nd Mate supposed to call the Captain?
30 minutes from the pilot station
Just at the usual time
When anything unusual happens, and 30 minutes before the pilot station
Just when he happens to remember
What must be specified when ordering gas detection equipment?
That the instrument complies with international regulations
That the instrument is suited for its purpose of application
That the instrument can measure flammable atmospheres
That the instrument can measure methane and hydrogen when used in low-oxygen atmospheres
A non-reversing medium speed diesel engine is used to drive a controllable pitch propeller through a pneumatic clutch and reduction gearbox. The engine has been tested and brought up to operating temperatures on engine control. Which of the options given would be the preferred status of the engine and associated equipment when it is handed over to bridge control?
Engine stopped with clutch disengaged and propeller in zero thrust position.
Engine running, clutch disengaged, propeller at zero thrust.
Engine running with clutch engaged and propeller in ahead position.
Engine stopped with clutch disengaged and propeller at zero thrust.
What is meant by the term "certified gas free"?
A tank, compartment or ISO-container that has been tested and produced a negative result when tested for Hydrogen Sulphide and has then been closed until required for entry.
A tank,compartment or container that has been tested by an authorised person using an approved testing device and found to contain an adequate level of oxygen and free from toxic or flammable gases and for which a certificate authorising entry has been issued.
A cargo tank that has been tested by a ship's officer using a testing device that is in regular use and found to contain above 17.5% oxygen by volume and where a tank entry label is displayed in the vicinity of the tank lid.
A tank, compartment or container that has been tested for oxygen content by a certified shore chemist.
Which of the following statements is correct with regard to IMDG Class 4 (flammable solids) cargoes loaded on a General Cargo vessel?
The cargo is not covered by the requirements of the IMDG Code
The goods can only be carried in the forward part of the vessel
The cargo can be stowed anywhere on the vessel
The goods require protection against movement and can only be loaded if a cargo declaration is supplied by the shipper
Some engine manufacturers recommend that washing of the compressor side is not carried out. Is this due to;
The thermal shock exhibited by the vanes.
The nozzle ring becoming corroded.
Greasy sludge from the compressor sticking between the fins in the air coolers, necessitating extra cleaning of these.
Large volumes of water being carried over into the cylinders of the engine.
Is there a longitudal bulkhead in membrane tanks?
There is always transverse bulkheads in membrane tanks to reduce free surface of the cargo
There is steel frames instead of bulkheads in membrane tanks
There is always longtitudal bulkhead in membrane tanks
There isn't longtitudal bulkhead in membrane tanks
What name is given to the flow diagrams that appear in the Annex II Procedures and Arrangements Manual, which guide the user through the methods to be followed in cleaning a tank after containing a Noxious Liquid Substance?
Collection and Disposal Protocol.
Cleaning and Pumping Diagrams.
Cleaning and Disposal Procedures.
Chemical Disposal Plans.
Which of these weapons are widely available and commonly used by criminals and terrorists to further their aims?
Liquid explosive
Gun
Vehicle borne device
Incendiary device
A pressure gauge of the bourdon tube type is reading incorrectly and shows 2 bar when the pressure in the system is zero. There is no spare available. Which of the options would be the best temporary remedy for this situation?
Use a deadweight tester to mark a new scale on the gauge throughout the working range.
Remove the indicator needle and reposition it to read zero when the system is unpressurised.
Bend the bourdon tube so that a zero reading is obtained when the system is unpressurised.
Subtract 2 bar from the gauge reading when checking the pressure.
What advice would a harbour pilot give the Master?
A harbour pilot would advise the Master to have the steering gear tested
A harbour pilot would advise the Master to single up to one line and back spring, fore and aft
A harbour pilot would advise the Master to request port control for permission to leave the berth
A harbour pilot would advise the Master to ensure that the crew is on stand-by
What would be the effect of a large GM on a ro-ro vessel?
The possibility of assuming an angle of loll
A stiff ship with a quick roll period
An adverse affect on seaworthiness
The possibility of capsizing
Why do cargo tanks on a chemical tanker commonly have their own individual pipelines and cargo pumps?
To permit faster loading and discharging rates.
To reduce the chances of cross contamination.
To simplify the piping layout.
To allow more dangerous cargoes to be carried.
When does wind force cause heeling moments on a container ship?
When on-deck containers are block-stowed
Whenever wind speeds exceed 70 knots
Whenever wind speeds exceed 60 knots
When the on-deck containers present a certain profile to the wind direction
What does ODME mean?
Oil Detecting - Master Evaluating.
Oil Discover Measure Equipment.
Over board Detecting Measure Equipment.
Oil Discharge Monitoring Equipment.
What is known as a "Non-Standardized Cargo" on a General Cargo Ship?
Cargo for which the ship is not provided with an approved securing system
Cargo which must be secured in accordance with the shipper's instructions
Cargo which requires individual stowage and securing arrangements
Cargo for which there is no standard securing system
What is normally seen as the greatest risk when operating a high pressure, water tube, steam boiler with an excessively high level of Total Dissolved Solids?
Pitting corrosion at the water level in the boiler water drum.
General corrosion of boiler tubes and fittings
Hard scale deposits on boiler tubes and fittings
Foaming and carryover of water into the steam range.
The buoyancy forces upwards act at what part of the hull?
All over the underwater volume.
Along the keel.
At the centre of gravity (G)
At the centre of buoyancy (B)
What is the advantage of a transmitter with a narrow measurement range?
Do not need any calibration
Easy installation
Lower purchase cost
Better linearity and increased accuracy
Prior to removing the access doors to a pressure vessel for internal maintenance it should be ensured that all pressure has been relieved. As well as a zero indication on a pressure gauge which other measure, from the options given should be taken to confirm this prior to commencing the work?
Open the drain valve when the gauge reads zero to check that there is no outflow.
Open the drain valve and when the outflow stops slacken off the drain valve flange bolts and 'crack' open the flange in case the drain is blocked.
Open the drain valve while pressure still shows on the gauge and to check it is clear. Outflow should cease as the pressure gauge reaches zero.
Back of the tensioning device for the relief valve to vent the pressure to atmosphere.
Proper and accurate inventory of stores should be maintained inorder to:
Order the required stores
Report to the office
Control the ship's budget
Show to the port authorities
How many portions of fruit and vegetables are recommended as part of the daily intake for an adult?
2.
10.
5.
Not more than 3.
Which electronic component or system of components is this graphical symbol illustrating ?
Battery charger
Auto transformer
Inverter
Low pass filter
Which statement is correct for a fire door class "A-60"?
It is a requirement to keep class "A-60" fire doors closed for minimum 60 minutes
Class "A-60" fire doors shall be capable of preventing the passage of flame for minimum 60 minutes
Class "A-60" fire doors shall prevent the passage of smoke and flame and the average temperature of the unexposed side shall not rise more than 180
Class "A-60" fire doors must be closed within 60 seconds
After discharge of a bulk cargo by grabs, tank tops and lower hopper side plating must be checked for ?
Rusting
Damage and possible leaks
Paint coating loss
Cargo residues
What are Primary fenders, with regard to ship-to-ship transfer operations?
Primary fenders are large fenders meant to float between vessels and absorb considerable impact
Primary fenders are tyre-type fenders kept on deck for emergency use
Primary fenders are small fenders suspended between the ships' bows or stern to protect from inadvertent angular contact
Primary fenders are fixed to the bow of an attending tug (if any)
If left-over cooked meat is to be re-used in another meal, which of the following precautions must be taken?
The meat must be fine chopped to ensure it re-heats to at least 70 degrees Celsius as quickly as possible; it must not be mixed with newly preared raw meat; the dish in which it is used must only be heated once.
The meat can be directly added to another dish and musdt be re-heated to the temperature required by the new recipe; it can then be re-heated for further servings provided it is refrigerated in between.
The cooked meat must have been refrigerated until required; it can be taken out, chopped and mixed thoroughly with newly cooked ingredients, to ensure it is adequately re-heated. If it cools before serving, it can be warmed through on a hot plate or under a heat lamp.
The meat must be sliced to a thickness of less than 5 mm to ensure it re-heats to at least 50 degrees Celsius during cooking; it can only be layered with other previously cooked ingredients; the dish in which it is used can be re-heated again, provided it is refrigerated between each serving.
Prior to loading general cargo what must be ensured with regard to lashing wires, terminations, shackles, turnbuckles, pad eyes and D rings?
They must all be visually inspected
They must all be certified and be (visually) unimpaired
Lashing wires must be new whereas other accessories may be certified
They must all be certified
Refrigerated cargoes are generally easy to secure for a sea passage when compared to some bulk, timber and project type cargoes. The cargo must be stowed so that it will not shift during the voyage and so that a good air flow can be maintained through the cargo. Which one of the given options is most likely to result in this required outcome and a successful carriage?
A loose uniform stow.
A tight uniform stow but with vertical gaps in the cargo for air flow.
The stow is unimportant as it is only the temperature in the hold which determines whether or not the cargo is carried successfully.
A tight uniform stow which forces air through the cargo.
One of the tubes in a seawater cooled condenser is leaking due to being holed half way along its length. What is the most appropriate onboard repair method to be used from the options given?
Roll both ends of the leaking tube using a tube expanding tool.
Blank off the leaking tube at both ends with steel screw plugs after cutting an internal thread using a suitable tap.
Blank off the leaking tube at both ends using suitably tapered brass plugs.
Blank off the leaking tube by brazing a cap to each end of the tube.
Which is the "CAPSTAN", in the figure?
The Capstan is indicated by A, in the figure
The Capstan is indicated by D, in the figure
The Capstan is indicated by C, in the figure
The Capstan is indicated by B, in the figure
What is the Fitter asked to do?
The portable air pump is out of order
He is to empty the hydraulic oil into the sea
He is to check the heater for the hydraulic oil
He looks for oil drums under the forecastle
What is one reason for repeating a command to passengers in an emergency?
You can establish your presence.
You won't have to say the command more than twice.
You don't have to be as clear in what you say.
More people will have a chance of hearing the command.
What is the maximum quantity of cargo permitted to be carried in a single tank on a type 1 chemical tanker as per the IBC Code?
2400 cubic metres.
3000 cubic metres.
1250 cubic metres.
750 cubic metres.
In what circumstances can a ships loading computer be used with confidence on a container vessel.
When the computer has been manufactured by a reputable supplier.
When a new computer with a large RAM has been received.
When the loading computer has been approved by Class.
When the computer has been supplied by the company IT department.
Fast rescue boats construction should be:
Inflated
Rigid
Stainless steel
Rigid, inflated or rigid / inflated
Which of the following is considered to be the most efficient method of testing the weather tightness of hatch covers during a pre-loading survey of a General Cargo Vessel?
Hose test
Visual inspection
Ultra sonic test
Chalk test
Whish of the following disposal would be permitted?
Food waste from a vessel outside a special area and 10 miles from nearest land
Food waste from a vessel inside a special area and 10 miles from nearest land
Paper products from a vessel inside a special area and 15 miles from the nearest land
Food waste from a vessel outside a special area and 12 miles from the nearest land
Chemical tankers of 20,000 tonnes DWT or above, with a keel laid on or after 1st July 1986, when carrying flammable products with a flashpoint not exceeding 60 degrees Celsius, such as those listed in chapters 17 and 18 of the International Bulk Chemical Code, are exempt from the requirement to be fitted with and use an inert gas plant provided certain conditions are met. Which of the following is a summary of those conditions?
The cargo tank does not exceed 1250 cubic metres capacity / each tank washing machine nozzle does not exceed 12.5 cubic metres per hour delivery rate / the total wash water input to the tank from all tank washing machines does not exceed 90 cubic metres per hour.
The cargo tank does not exceed 3000 cubic metres capacity / each tank washing machine nozzle does not exceed 17.5 cubic metres per hour delivery rate / the total wash water input to the tank from all tank washing machines does not exceed 110 cubic metres per hour.
The cargo tank is greater than 3000 cubic metres capacity / each tank washing machine nozzle is capable of delivering a minimum of 17.5 cubic metres per hour / the total wash water input to the tank from all tank washing machines must be at least 110 cubic metres per hour.
The cargo tank is greater than 1250 cubic metres capacity / the number of tank washing machines in use at any one time must be such that no more than 17.5 cubic metres per hour is delivered / the minimum quantity of wash water delivered in the washing operation must be greater than 110 cubic metres.
Данный онлайн-тест состоит из 90 случайных вопросов из тестов CES 5.1 по выбранной вами тематике.