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*As regards the launching and recovery arrangements for rescue boats which is required among the following?
Different type of launching and recovery arrangements shall be used for similar survival craft on board the ship
Each lifeboat shall be provided with separate appliances which is capable of launching and recovering the lifeboat
Means shall be available to prevent any discharge of water on to survival craft during abandonment
Launching and recovery arrangements shall be such that they can be operated at all times from the bridge
*At what temperature do the sprinklers come into operation in accommodation and service spaces ?
Over 100 ?C
Within 50 ?C to 60 ?C
Over 150 ?C
Within 68 ?C to 79 ?C
A flame detector is activated by:
The infrared radiation and ultraviolet radiation given off by flames
The rise of the environment temperature
Smoke, gas, sparks and high temperature
The radiation of heat given off by flames
*How long may the signal of a detector be left unacknowledged before it begins to ring automatically in every crew accommodation spaces, service spaces, control stations and machinery spaces of category A?
10 min
2 min
1min
5 min
*Which of the following requirements applies to the inert gas system of a tanker?
Inert gas must be delivered at a rate of at least 125% of the maximum rate of discharge capacity of the ship expressed as a volume
All these requirements apply
The oxygen content of the inert gas must not exceed 5%
The oxygen content of the atmosphere of any part of any cargo tank must not exceed 8%
*According to the SOLAS definition, what is an incombustible material?
A material that neither burns nor gives out flames when it is exposed to the standard fire test for 30 minutes
A material that neither burns nor emits flammable fumes in such a quantity as to experience ignition, when the temperature rises to 750 ?C
A material that is made out of steel or equivalent material
A material that neither burns nor gives out flames when it is exposed to the standard fire test for 1 hour
*As far as human factor is concerned, which of the following actions should be considered as an efficient one?
To establish inner rules to perform works of a special risk
To train the fire brigade
To equip them with better communication systems
All the answers are good
*May an engine room be only protected by a fixed low expansion foam fire-extinguishing system?
Yes, if the "engine room" is considered as a machinery space of category A
Yes
It depends on the type of vessel
No
What types of fire extinguishers shall be used in the engine room?
Fire extinguishers filled with fresh water only.
Any fire extinguisher with a weight of less than 100 lbs.
Fire extinguishers equipped for powder or CO2 only.
Fire extinguishers of the handy-size types only.
When a fire breaks out in the accommodation, cargo holds or on deck, who is in charge of the fire fighting operations?
The person who is designated in the muster list
The first officer arriving at the scene
The first person arriving at the scene
The chief officer
If you discover a fire which is not a very small one, what is the first action you must do?
notify it to the bridge and comment what you have seen
run away from the fire
activate the fire alarm
try to extinguish the fire
Welding and use of open flames on board tankers in operation are subject to regulation laid down by the Norwegian Maritime Directorate (Norwegian Ship Control Legislation - NSCL). During preparations for welding or hot works, the following item shall always be checked:
Working performance and capacity of ventilating system.
Gas levels measured in tanks where work is to be carried out.
Inert gas composition.
Time since cleaning was carried out.
How frequent should reports from protection and environmental work be send to shore based management?
Every three years.
Biannually.
Not mandatory to send reports.
Annually.
Sun rays and light reflected from a bright surface (e.g. sea); can cause damage to the skin and eyes. What is this type of burn called?
Dry burns.
Cold burns.
Electrical burns.
Radiation burns.
One of the following arguments is not valid regarding discharge of oil/oily mix into sea:
The lower speed the higher ratio of oil/oily water can be discharged?
When discharging oil/oily water, the vessel-s position must be minimum 50 nm off any shores?
Rate of discharge regarding oily water is not to exceed 30 litters/nautical mile?
Tankers are restricted to have a monitor/control system and a slop tank?
In shallow water a ship will experience "Squat". What are the principle reasons creating the effects of squat?
There are changes in the bow and stern pressure fields associated with the ships motion.
There is an increase in the water velocity and a decrease of water pressure around the ship's hull
There is a decrease in the water velocity and an increased of water pressure around the ship's hull
There is an increased effect of gravity due to closeness of the sea-bed
In accordance with GMDSS rules, the frequency 2187.5 kHz is used for:
On scene communication
Distress traffic
Routine message
Distress alerting
Give the meaning of the following symbol:
muster station for lifeboat
lifeboat
muster station for rescue boat
rescue boat
A person wearing an anti-exposure suit shall be able to:
don and remove the suit in the water in no more than 5min. if it impairs ability to swim
don a lifejacket without assistance
jump from a height equal to that of the stowage of liferafts arranged to be thrown overboard
dive into the water to the maximum draft of craft that the ship is provided with
Which one of the listed requirements regarding thermal protective aids do not correspond to present regulations? The thermal protective aids shall:
permit the wearer to swim a short distance through the water and board a survival craft
cover the whole body except the face of a person wearing a lifejacket
permit the wearer to remove it in water in not more than two minutes
be unpacked and easily donned in a survival craft without assistance
Which item among those below is included in the normal equipment of every lifeboat ?
sea-charts and navigating equipment
one immersion suit for each person
a VHF transceiver
portable fire-extinguishing equipment suitable for oil fires
What is the meaning of this symbol ?
Start water-spray
Start air supply
Lower lifeboat to water
Embarkation ladder
Which of the following detailed explanations should be mentioned in the Training Manual ?
The use of escape routes and other escape methods
The hazards of exposure and the need for warm clothing
The use of navigational equipment for survival crafts
The use of surface to air visual signals to be used by survivors
What is the purpose of explosimeters?
Measure the amount of explosive gases in % of LEL.
Measure electric charging in the atmosphere.
Check how much time you have before an explosion.
Check the power of the explosions in a combustion engine.
Which one of the listed requirements for passenger ships regarding personal life-saving appliances do not correspond to present regulations?
All lifejackets shall be fitted with a whistle, a light and a smoke signal
Ro-ro passenger ships shall carry at least 2 lifebuoys provided with self-igniting lights an self-activating smoke signals
All lifejackets shall be fitted with reflex, a whistle and a light
The 5% extra lifejackets carried on board have to be stowed in conspicuous places on deck or at the muster stations?
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.
What are the duties of an effective bridge look out?
Ensure there is always a bridge lookout on duty and only leave the lookout when given permission.
Keep a lookout for other ships; navigation lights and any other dangers which may have no lights
All of the alternatives specified
Keeping a constant observation around the ship.
What will a cadet find in the maintenance manual?
A Cadet will find a lubricating chart in the maintenance manual
A Cadet will find grease nipples in the maintenance manual
A Cadet will find machinery spare parts in the maintenance manual
A Cadet will find grease in the maintenance manual
What is the most important reason for separating a panicking passenger from the group?
It is easier to calm the person down in private.
You want to protect the panicking person as much as possible.
You don't want other passengers to hear if you have to become very strict with the panicking person.
Panic can spread and affect other passengers.
Ballast introduced into a cargo tank on a chemical tanker which has been washed to such an extent that the ballast contains less than 1 ppm of the substance previously carried may be discharged into the sea without regard to the discharge rate, ship's speed and discharge outlet location, but under certain conditions. What are those conditions?
That the vessel is not less than 50 miles from the nearest land and is proceeding on route.
Provided the ship is underway and a sample of the ballast water has been drawn from the tank and is stored on board, there are no additional conditions to be imposed on such a discharge.
That the discharge is passed through the Oil Discharge Monitoring Equipment and a visual watch is maintained on the vessel's wake.
That the vessel is not less than 12 miles from the nearest land and is in water that is not less than 25 metres deep.
Strawberries are a sensitive cargo with a relatively short carriage life and can only be carried on short sea passages. They are often irradiated for transport. Select the true statement from the options given relating to the effect of irradiation.
A cargo of irradiated strawberries must be stowed well away from the crew accommodation to reduce the possible effects of cobalt 60 radiation.
The main effect of irradiating strawberries prior to transport is that it kills off any bacteria on the fruit.
The main effect of irradiating strawberries prior to transport is that it improves the colour of the fruit.
The main effect of irradiating strawberries prior to transport is that it kills any flies on the fruit.
Shortly after starting up a fuel oil purifier oil is seen to be trickling out of the sludge outlet. Which of the options given is the most likely cause of this problem?
Incorrect gravity disc fitted.
Insufficient seal water supplied during start up.
Damaged bowl seal.
Excessive back pressure in the clean oil outlet.
Which of the following international regulations is normally used when handling dangerous goods?
IMDG code
KLMNG code
HB code
SOLAS code
Which of the following ship motions complements the natural springing tendency of Ro-Ro cargoes?
Heaving
Yawing
Surging
Roling
What sort of information must an inhibitor certificate contain?
Inhibitor name, number of cargo tanks inhibited, duration of effectiveness of inhibitor, expected duration of sea voyage and temperature limitation qualifying the lifetime of the inhibitor
Inhibitor name, number of cargo tanks inhibited, duration of effectiveness of inhibitor, expected duration of sea voyage and date the cargo tanks are inhibited
Inhibitor name, date inhibited and expire date of the inhibitor
Inhibitor name, concentration of inhibitor, duration of effectiveness of inhibitor, expected duration of sea voyage, temperature limitation qualifying the lifetime of the inhibitor and number of cargo tanks inhibited
What is the minimum furnace temperature that must be reached during start up before waste material can be introduced into an incinerator?
1500 C
850 C
2500 C
2000 C
What can be the punishment for a shipmaster who refuses to provide any person carried on the ship with anything which he is entitled to receive in such capacity, or who permits such refusal?
Shall be liable to fines or imprisonment for a term not exceeding 6 months, but not exceeding 1 year if there are especially aggravating circumstances.
Shall be liable to fines or imprisonment for a term not exceeding 6 months, but not exceeding 2 years if there are especially aggravating circumstances.
Shall be liable to fines or imprisonment for a term not exceeding 12 months.
Shall be liable to fines or imprisonment for a term not exceeding 6 months, but not exceeding 9 months if there are especially aggravating circumstances.
What is the meaning of the term "Steady as she goes" when acting as helmsman?
Reduce the number of helm movements used when steeriing a set course
Try to reduce the continuous swinging either side of the course when steering a compass course.
Keep the applied rudder constant until the next helm order.
While altering the ships head, the instruction "steady as she goes" means reduce the ships swing as rapidly as possible and steady on present course
Which of the following is most likely to influence changes to emergency plans and procedures?
MARPOL 73/78
The safety requirements of the USCG
The design and layout of the ship
The ISM Code
If a cargo is heated, which of the following happens?
Its weight does not change, but its volume increases - it expands.
Its volume does not change, but its weight decreases - it gets lighter.
Its weight does not change, but its volume decreases - it contracts.
Its volume does not change, but its weight increases - it gets heavier.
The purpose of the “flame scanner” on the boiler is
check the colour of the flame
all the alternatives
controlling the combustion air supply to the boiler
shut off the oil flow if the flames goes out
This circuit consists of a voltage source V, a change-over switch S, a resistor R and an inductor L. The voltage/time figures 1 to 4 show possible changes in the voltage V(L) in case the switch S is suddenly shifted from position 1 to 2 at time t = 0. Only one of the diagrams is correct. Which?
Figure 4
Figure 2
Figure 3
Figure 1
Why should boiler sootblowers normally only be operated in the correct sequence?
To minimise loss of steam pressure
To ensure soot is cleared progressively from the bottom tubes to the top and toward the boiler uptakes.
To avoid excess stress in the boiler.
So that the operator does not forget which sootblowers have been used.
What is the main fixed fire-fighting system on a car deck?
Water sprinkling
Halon
CO2
Dry powder
During loading or discharging liquefied gas cargoes it is important to control the pressure in the cargo tank. What is the preferred method of maintaining pressure and avoiding a vacuum condition in the cargo tanks while discharging?
Stop the discharge periodically to allow boil off gas to build up the pressure.
Increase the pumping rate and recirculate some of the cold liquid cargo back to the tank
Use a cargo vaporiser to feed hot vapour back to the tank to maintain required pressure.
Reduce the discharge rate until the pressure builds up again and then increase it back to maximum.
On a Container vessel, what will attending surveyors inspect when containers have been lost overboard?
The vessel's Safety Construction certificate
The on-board cargo lashing inventory
Certificates of approval related to lashing equipment used to secure those containers
The vessel's Class certificate
What does the Chief Mate want the OS to do?
He wants the OS to turn the switch to start, just to be sure
He wants the OS to show him the switch identical to the one the 2nd Mate showed him
He wants the OS to show him where the switch that changes between automatic, manual, and emergency steering is
He wants the OS to show him how to handle the wheel
How is ‘Allowable Use Strength’ (AUS) calculated, for applying cargo lashings in the transverse direction?
Transverse accelerations, taken from the CSS Code, multiplied by the vessel’s natural roll period
Vessel’s moulded breadth divided by a factor of safety, taken from the CSM, multiplied by weight of cargo item
Width of cargo hold divided by a factor of safety, taken from the Cargo Securing Manual (CSM), multiplied by weight of cargo item
Transverse accelerations, taken from the Cargo Stowage and Security (CSS) Code, divided by 7 multiplied by weight of cargo item
Tank venting systems should be designed and operated so as to ensure neither pressure nor vacuum created in cargo tanks during loading or discharging exceeds tank design parameters. A certain rate of generation of vapour during loading, sometimes termed gas evolution, is assumed. According to the IBC Code, how is that calculated?
The nominal loading rate is multiplied by a factor of 1.15
The maximum loading rate is multiplied by a factor of at least 1.25
The average anticipated loading rate is multiplied by a factor of 2.0
The calculated loading rate, assuming a litreweight of 1.2 kg/l and allowing for a friction loss of 12% per 30 metre length of unrestricted pipeline, is multiplied by a factor of 1.15 (A safety margin of 20% is additionally applied for products with a vapour pressure of greater than 1.15 mPa).
Which of the given options is the SIGTTO definition of the term 'span gas'?
A vapour sample of known composition and concentration used to calibrate gas detection equipment.
A gas, such as nitrogen, or a mixture of non-flammable gases.
Vapour removed from contact with its liquid and heated beyond its boiling temperature.
A phenomenon generated in a pipeline system when there is a change in the rate of flow of liquid in the line.
What will you do when all the fresh water in the survival craft is finished or about to finish?
Use sea water to keep your body wet
Start collecting rain water
Drink Sea water
Drink only 1 liter of sea water per day
Why does a hatch cover hydraulic system deteriorate?
Due to dust and cargo particles lodging around the piston seals
Due to hatch cover operations in high summer temperatures
Due to repeated hatch cover operations
Due to ice accretion on piston jackets
What is the purpose of an observation tank in a boiler feed system?
To check condensate returns for oil.
For adding chemicals into the boiler water.
To monitor chloride level.
To monitor the water colour.
What items of container securing equipment must be used in conjunction with buttresses?
Twistlocks
Single stacking cones and bridge fittings
Double stacking cones or link plates
Single stacking cones
Chemicals and harmful substances are safely stored in a designated locker on board, why?
For safety reasons. Many substances found onboard are capable of damaging the health and safety of those exposed to them. Before any chemical or harmful substance is delivered to a crewmember, the personnel shall receive training, instructions and information so that they know and understand the risks arising from use.
For safety reasons and stock control. When chemicals or harmful substances is delivered to a crewmember, the user shall sign for the amount received.
Chemicals and harmful substances must be kept away from passengers so that they don't steal it.
For stock control. Most of the chemicals and harmful substances we use on board are expensive.
Who can carry out a Quadrennial Thorough Survey of cargo gear?
A classification society surveyor
A deck officer designated by the master
A marine surveyor
The master
Conventional reefer vessels are usually designed with fine lines and large flared bows. Consequently, in adverse weather conditions, especially from forward of the beam, the navigating officers need to be mainly aware of which of the given options?
This type of vessel is prone to large hull deflections which may result in structural damage.
That the main engine governor may not be effective when the vessel pitches heavily.
That the bow is ideal for keeping the forward decks dry and clear of water.
That the vessel design means that high speeds can be maintained and the perishable cargo can be delivered in good condition.
A High Breaking Capacity fuse found in a Main High Voltage Switchboard will have fault level rating of ?
4000A
400A
40 kA
40A
"Your ship security plan must include procedures for responding to security threats, auditing security activities and interfacing with the port facility."
FALSE
.
TRUE
How can you arrange for safe movement of passengers on ro-ro decks?
It is easy, only drivers are allowed to stay in the car during loading and unloading.
Passengers are responsible for their own safety while moving about ro-ro decks.
Passengers should be warned of vehicle movements when entering or crossing car or vehicle decks. They should preferably keep to walkways while moving about the ship.
Passengers should stay in their cars until loading is completed. They should keep to walkways when leaving the car.
Chemicals and harmful substances are safely stored in a designated locker on board, why?
For safety reasons and stock control. When chemicals or harmful substances is delivered to a crewmember, the user shall sign for the amount received.
For stock control. Most of the chemicals and harmful substances we use on board are expensive.
Chemicals and harmful substances must be kept away from passengers so that they don't steal it.
For safety reasons. Many substances found onboard are capable of damaging the health and safety of those exposed to them. Before any chemical or harmful substance is delivered to a crewmember, the personnel shall receive training, instructions and information so that they know and understand the risks arising from use.
Oil analysis results show a high level of tin. What could be the cause of this?
Water contamination.
Fuel contamination.
Bearing damage.
Too high lub.oil temperature.
What makes cargo holds weather tight?
The hatch coaming compression bar
Firm contact between the hatch cover rubber seals and the hatch coaming compression bar
Steel-to-steel contact between hatch covers and coaming
Hatch cover rubber packing
A large vessel develops a sudden sheer when it stops moving through the water, having been steaming through a shallow water channel for several miles. The sheer may be strong and unexpected and is due to what reason?
The shallow water reduces the effectiveness of the rudder and when the vessel stops any applied rudder will become suddenly more effective.
The vessel stopping shifts the pivot point forward and creates a turning moment and results in the ship swinging towards the bank.
The hydrodynamic interaction effects from the banks of the shallow water channel acts on the stern causing the vessel to sheer strongly
The large volume of water dragged behind the vessel continues to move forward and cause a strong turning moment on the stern of the vessel
What will happen if a centrifugal pump is not fitted without a non-return valve on the delivery side?
The pressure above the pump will be extremely high.
The capacity will be reduced.
It will give full back flow at the time the pump stops.
Nothing special will happen.
A ship has an electrical system rated at 690 Volts. Which voltage level is this?
Medium voltage.
Low voltage.
High voltage.
Intermediate voltage.
You are going to do deballasting of a double bottom tank. The pump is of centrifugal type and mounted above tank level. You are having problems getting the pump to take suction. What can you do to solve the problem?
Repeat start and stop of the pump until it gets suction.
Feed the pump from the sea water inlet pipe.
Get somebody to do the job for you.
Disconect the manometer pipe to get rid of an air pocket .
What is the most common way to control the tank pressure on a LNG tanker?
To let the gas escape through the safety valves.
To transfer the gas to another tank which is at a lower pressure.
To discharge the gas into the atmosphere through the vents.
To use the boil-off gas as fuel for the vessel.
Is it required to have supplementary emergency lighting on board passenger ships?
Yes, all passenger public spaces and alleyways shall be provided with supplementary electric lighting
No, reflective marking indicates the escape routes
No, passengers should bring their own flashlights
No, portable battery operated lamps shall be provided in alleyways and public spaces
What type of cargo tanks are normally used for the cargo containment system for fully pressurised and semi-pressurised liquefied gas carriers?
Independent Type A.
Membrane.
Independent Type C.
Independent Type B.
Many medium and high speed marine diesel engines have connecting rods with an obliquely (angled) split in way of the bottom end which may have serrated faces. What is the main reason that the connecting rods are manufactured with this oblique split?
It reduces the inertial loads generated during operation as the connecting rod can be made lighter.
It allows the bottom end bearing to be large but still allows the piston to be withdrawn from the top of the cylinder.
It allows larger bottom end bolts to be used without risk of fouling the bottom of the oil pan.
It gives better access to the bottom end bolts.
Which of the following statements is true with respect to the Great Lakes area?
Cargo sweepings can be discharged anywhere
Cargo sweepings cannot be discharged in sensitive and/or protected areas
Cargo sweepings cannot be discharged within 5 nautical miles of any coastline
The discharge of cargo sweepings is prohibited
The Threshold Limit Value (TLV) refers to as parts to million (PPM) by volume of gas in air. What does the time weighted average of ppm indicates?
The average of exposure to a toxic substance per day.
The maximum exposure to a toxic substance per 8 hours working day.
The maximum exposure to a toxic substance per day.
The average exposure to a toxic substance per 8 hours working day.
On the figure 4 possible definitions of the term "UNDER KEEL CLEARANCE" are given. Which one is the correct one?
Under keel clearance is given by D on the figure
Under keel clearance is given by A on the figure
Under keel clearance is given by C on the figure
Under keel clearance is given by B on the figure
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.
The specified maximum working pressure of a cargo hose in service on a chemical tanker should be at least which of the following?
1/3 design burst pressure.
10 bar gauge.
12 bar gauge.
5 bar gauge.
What is the most important consideration when planning the lashing system for a particular sea route on a General Cargo Vessel?
Encountering heavy weather
Transverse accelerations
The breaking strength of lashing materials
The size and weight of general cargo items to be loaded
A data logger printout is being checked against the sensors in a refrigerated cargo space. The pulp temperature and the return air flow temperature are being considered. It is necessary to identify the return air sensor. Which of the options gives the best description of the normal form that such a sensor would take?
A glass tube filled with coloured liquid.
A metal spike protruding from a rubber base housing which is usually black.
A tube completely covered in a rubber housing which is usually black.
A metal spike with an analogue readout at one end.
What is ‘Reserve Buoyancy’?
The buoyancy provided by all enclosed spaces above the waterline
The residual buoyancy at an angle of loll
The residual buoyancy at the maximum righting lever
The buoyancy provided by all spaces above the waterline
What does this flag mean?
My vessel is stopped and making no way through the water.
Yes (affirmative).
I wish to communicate with you.
I have a diver down; keep well clear at slow speed.
Why did the new Cadet want to go to the messroom?
The new Cadet wanted to go to the messroom to sign the Articles of Agreement
The new Cadet wanted to go to the messroom to get some rest
The new Cadet wanted to go to the messroom to become acquainted with the officers
The new Cadet wanted to go to the messroom to check that his papers were in order
Large bulk carriers are more likely to suffer from cracks in structure in which of the following parts of the vessel?
In after peak area
In number 1 and number 2 holds
Around hatch corners and upper ballast tanks amidships
On bottom plating in the after part of the vessel
How many categories of Seed Cake are there in the Code of Safe Practice for Solid Bulk Cargoes (BC Code)?
4
5
3
2
How does low expansion foam act as an extinguishing agent when dealing with oil fires?
By cooling only
The heat from the fire causes the foam to produce an inert gas which gradually extinguishes the fire.
By smothering and also providing some cooling
By smothering only
What to do if Your ship receive HFO with high density , from the last bunkering, to obtain the best purifying result?
You start the purifier with a smaller disc.
Increase the speed of the purifier (RPM).
According to the nomograms You select a gravity disc with larger hole diameter.
This make no difference for the result.
Which component does this graphical symbol illustrate?
Pressure relief valve, self-contained
Pressure indicator, installed locally
PH analyzer
Pressure indicator, installed on panel/console
Why do many engine makers recommend to grind the valve spindle sealing surface with a half degree difference to the valve seat?
To avoid sticking between valve and seat during high load operation
To improve the sealing surface between valve and seat during operation of the engine (compensate for the bending of the valve disc caused by combustion pressure)
To minimize heat transfer between seat and housing.
To compensate for the heat expansion
After cleaning and back in service, You observe that the heat transfer is bad. What is the first thing to do?
Increase the pressure.
Check for proper air vent of the exchanger.
Dismantle the exchanger again.
Decrease the pressure.
Which of the following is true when comparing Plate Type with Shell and Tube Type Heat Exchangers?
Better sealing between liquids in Shell and Tube.
Physically smaller for the same capacity.
The capacity can easily be changed.
All of these.
For any engine room operated in UMS-mode, defined checks are to be carried out prior to switching to UMS-mode. Is it the Engineer on Duty's responsibility to have the full control of condition of any check items prior to switching to UMS-mode and leaving the engine room, or may he leave the engine room for a short period trusting the alarms and automatic functions are sufficient for safe operation?
A described UMS-mode check shall always be carried out prior to leaving the engine room, irrespective of the time he will be absent.
Ok for a short period as long as one rating is left "on watch"
Ok for 15-20 minutes without a proper check
Ok for one hour without a proper check
Данный онлайн-тест состоит из 90 случайных вопросов из тестов CES 5.1 по выбранной вами тематике.