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Головна Онлайн-тести CES Dry cargo Deck Support Test online CES 5.1 for Deck department, Support level, Dry cargo vessel
Онлайн-тестування: Test online CES 5.1 for Deck department, Support level, Dry cargo vessel
Виберіть режим роботи з тестом:
Навчання
Онлайн-тест
Опис
Тест складається із випадкових питань з обраної теми.
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A SART must be visible on the ship’s radar from a distance of at least:
Don't know
50 miles
30 miles
5 miles
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
Considering the range of sensitive liquid chemicals which routinely require wall-wash prior to loading, what product is mainly used as the rinsing agent in wall-washing?
Water.
Iso-propanol.
Industrial Ethanol.
Methanol.
Your ship is drifting in open sea with temporary engine malfunction. You are equipped with precise navigation equipment. What should you do in this situation?
Go to bed and wait for the engine to be ready
Use the opportunity to plot direction and rate of drift for later use
Call the company immediately
Ask the Chief Engineer when the engine will be ready
The vessel is in a 360 degrees turn with engine full ahead. If the speed is reduced during the turn, will there be any change in the turning diameter?
Yes, the turning diameter will increase if the speed is reduced.
No, the turning diameter will only change if the rudder angle is reduced
Yes, the turning diameter will be smaller if the speed is reduced.
No, the turning diameter will not change if the speed is reduced.
In the type of fluorescent lamp system shown in the illustration, the role of the starter is to perform which of the following?
To switch on current through the lamp, and to disconnect the ballast once the lamp has started..
To charge the ballast to a high inductive current, and then divert this current through the lamp.
To create a high starting current.
To pass current through the lamp heaters, and then interrupt the inductive striking current.
When you are taking an "ullage" on a cargo tank on an oil tanker, what are you actually doing?
Measuring the distance from the surface of the cargo to the ullage reference point
Measuring the distance from the bottom of the tank to the ullage reference point
Measuring the distance from the bottom of the tank to the surface of cargo
Measuring the distance from the surface of the cargo to the underside of the maindeck
What should be clearly marked on the cowl ventilators of a General Cargo Vessel?
A serial number
The date when last painted
The Open and Closed positions with the last date of testing
The last internal inspection date
You have just been handed six sample bottles by the cargo surveyor, containing Nitric Acid drawn from a cargo just loaded on your ship. How will you move them to the sample locker, prior to storage?
I will carry as many as I can in my arms in one go, but ensure first that I put on a pair of chemical-proof gloves.
I will instruct the cargo surveyor that he must deliver the samples to the locker himself.
I will obtain a plastic carrier bag, put the bottles inside and take them to the locker as quickly as possible.
I will place them into a proper container with a handle, such as a sample carrier or a strong bucket. When I move them, I will ensure that I am focused on this task alone.
What is the requirement regarding number of slop tanks on oil tankers of 70,000 tons and above delivered after 31 December 1979?
Shall be provided with at least 2 slop tanks.
Shall be provided with slop tank.
No requirement regarding number of slop tanks.
Shall be provided with sufficient number of slop tanks.
The ring expander for removal and refitting of an air compressors piston rings is found to be broken and unusable. The work cannot be delayed until a replacement is obtained. Which of the methods given in the options should the ship's engineers use to complete the work?
Lever the rings open using a couple of screw drivers to get the rings past the ring grooves.
As compressor rings are relatively small with little tension the ends can be pulled apart sufficiently to clear the piston using the thumbs.
Use loops of string or rags to pull the ring ends apart so the rings can be lifted off and on.
Fabricate a conical guide from tin plate or similar with the large diameter just bigger than the compressor piston so the rings can be eased open for fitting.
At what temperature is it recommended that frozen fish is stored?
0degrees Celsius.
Between 1 and 4 degrees Celsius.
-2 degree Celsius.
-20 degrees Celsius.
Discharge of a frozen cargo is about to start from a conventional reefer vessel. Select, from the options given, the best procedure to follow to ensure good cargo care.
The fans should be run at slow speed for one hour before discharge commences.
The fans should be kept running throughout discharge.
The fans should be kept running after the hatch is open until the stevedores enter the hatch.
The fans should be stopped just before the hatch lids are raised for opening.
To get the best possible efficiency from refrigerator evaporators, the superheat should be regulated to?
0- 1 Degr. C.
40 - 50 Degr. C.
5 - 10 Degr. C.
25 - 30 Degr. C.
What is the necessary protection when you are rust chipping with air tools?
Gloggles and ear protectors
Protective clothing, safety shoes, earmuffs
Gloves, goggles, earmuffs
Protective clothing, safety shoes, gloves, goggles, earmuffs.
Under international regulations where should draught observations be recorded?
In a note book
In the cargo log book
In the deck log book
In the official log book
Does OPA90 apply to vessels engaged in carrying liquefied gas?
Only if the carrier carry HC-products.
OPA90 apply to all ships.
OPA90 apply only to oil tankers.
OPA90 apply only to non-American flag vessel.
You have just completed tank inspection, prior to loading a number of chemical grades. The Duty Officer instructs you to secure the tank lids. (On this vessel, they are circular in design, with four dogs and the lid is raised and lowered on a geared wheel). Which of the following methods will you use to secure the lids?
I will swing the lid over the coaming and postion the dogs, tightening down the two furthest from the geared wheel first, then the two closest to the wheel. I will then take any remaining pressure off the wheel.
I will lower the lid with the geared wheel, ensuring that the coaming rim sits centrally against the packing. I will then position and tighten the dogs, working back and forth so that an even pressure is applied overall.
I will lower the lid with the geared wheel and then work round the dogs in a clockwise direction, tightening each one right down in turn.
I will lower the lid with the geared wheel, screwing it down as tightly as possible, then position the dogs, so that the lid remains centrally positioned while the ship is as sea.
This circuit consists of a voltage source V, a change-over switch S, a resistor R and a capacitor C. The voltage/time figures 1 to 4 show changes in the voltage V(C) when 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 1
Figure 3
Under which regulations would steel banding remaining in a cargo hold have to be discharged?
Port state regulations applicable at the port of departure
Port state regulations applicable at the port of destination
MARPOL 73/78 (Annex IV – Regulations for the prevention of pollution by sewage from ships)
MARPOL 73/78 (Annex V - Regulations for the prevention of pollution by garbage from ships)
On a Container vessel, what is the function of a lashing plate?
As tie down point for turnbuckles on deck or hatch cover
A means of securing buttresses under-deck
A means of securing the hatch covers
A means of securing lashing chains
In the event of a severe scavenge fire, which of the following is most likely to be seriously damaged?
Piston rod and stuffing box.
Exhaust valve.
Crosshead bearing.
Piston crown.
Who is responsible for maintaining the vessel's structural strenght?
The Shipyard
The Flag State Administration
The Master
The Shipping Company and the Classification Society
What is one way to try to overcome people's fears about loved ones?
Inform them about the nature of the emergency.
Prevent them from looking for their loved ones.
Assure them that the crew is sweeping the entire ship for passengers.
Give them a lifejacket to put on.
What type of Bill of Lading covers "door to door" shipment?
A Destination Bill of Lading.
A Through Bill of Lading.
A Multi-Phase Bill of Lading.
An Ocean Bill of Lading.
The fuel injection timing of a diesel engine is delayed causing high cylinder exhaust gas temperatures. What is the likely effect of this condition on turbocharger operation?
Continuous surging of the turbocharger
Vibration of the turbocharger.
Decreased turbocharger revolutions
Increased turbocharger revolutions
Which certificate is issued to LPG and other liquefied gas carriers in accordance with the IGC code?
The Certificate of Fitness is issued in accordance with the IGC code
The International Load Line Certificate is issued in accordance with the IGC code
The Cargo Ship Safety Construction Certificate is issued in accordance with the IGC code
The Cargo Ship Safety Equipment Certificate is issued in accordance with the IGC 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.
A crosshead pin for a large bore 2-stroke diesel engine has to be refurbished following bearing failure. The surface finish required is measured as a centre line average, CLA. Select, from the options given, the standard of finish that should be achieved during the refurbishment.
2.5 micron CLA
1micron CLA
5 micron CLA
10 micron CLA
What measures should be taken in order to avoid flammable gases forming on top of coal cargoes on a Bulk Carrier?
Ventilation to be continuous?
Ventilation to be carried out as indicated in the IMO solid Bulk Cargo Code
Cargo to be ventilated by opening hatch covers at sea?
Cargo not to be ventilated?
A cargo hatch cover seal on a Bulk Carrier is known to be damaged and not weather tight prior to sailing; what is the legal significance of this situation?
The vessel may have its classification affected
The vessel is still seaworthy but repairs must be carried out at next port
The vessel may well be judged to be un-seaworthy; this could invalidate some certification and hull and machinery insurance
There are no legal concerns over this
" On area A1 the function "" Transmission and reception of signals for locating "" is mainly based on:"
the use of SART transponders
the use of INMARSAT Epirbs
the use of SARSAT COSPAS Epirbs
the use of VHF DSC
Where should containers with fishmeal cargo be carried?
On deck away from sunlight
Separated from class 4.2 containers
On deck
Under deck
Some process control systems may several inputs and controlled variables. In this context what is meant by split-range?
On-Off control
Several controllers are connected to the same control-valve
Several control-valves are connected to the same controller
Several control-loops for the same range
You are experiencing large hunting on the fresh water cooling system. What is the reason?
The cooling water temperature is too low.
The expansion tank is empty.
You have a cracked liner, or cover.
The fresh water circulating pump is worn out.
On a General Cargo Vessel cargo is be secured using turnbuckles (bottlescrews) and wires; what is the minimum number of bulldog grips that should be used to attach wires to turnbuckles ?
A minimum of three
A minimum of four
A minimum of two
One only is required
An International oil pollution prevention certificate is required for:
All oil tankers
All ships of 150 gross tons or more
Oil tankers 150 gross tons or more
Oil tankers on International voyages
Studies of shipboard emergencies show that many passengers do not read or remember safety information. As an officer, how can you best compensate for this fact?
In an emergency, repeatedly tell passengers what's happening, what's being done, and what they should do.
Post large, graphic safety signs conspicuously throughout the ship.
Prior to departure, provide passengers with a good safety video.
Ensure that printed safety information onboard is of the highest quality.
What is the recommended range for the pH-value for the water in a diesel engine cooling system engine cooling water be maintained?
Above 10
Between 5 and 7.
Between 7 and 10.
Below 5.
Anyone who makes or permits a false entry to be made in the log book, shall be liable to fines or imprisonment for a term not exceeding 1 year according to:
The International Maritime Organization's Act of Maritime Activities
The Ship Safety and Security Act, Section 65..
The Public Administration Act
The Maritime Act
What should you keep in mind when releasing lashings?
Step aside when lashings are released
Close your eyes
Release lashings with great care to reduce the risk of injury when tension is released
Always use one hand!
Only search vehicle compartments where you suspect objects may be hidden.
TRUE
.
FALSE
Where should a container containing Calcium Hypochlorite be stowed?
Away from sources of heat
Away from cargo transport units containing class 6 IMDG cargoes
Under deck
Away from the centreline of the ship
Two conventional reefer vessels are being considered for a charter that involves the transhipment at sea, or at anchor, of a cargo of frozen squid, as weather permits. Both vessels have 4 holds, vessel A has high speed, 10 tonne deck cranes and vessel B has 5 tonne, union purchase derricks. Which of the vessels, if any, would be best suited to this type of operation?
Vessel B would be more suitable as the derricks will give more control of the operation at sea or at anchor.
Vessel A would be more suitable as the greater lift capacity of the cranes would allow bigger pallets to be transhipped.
Neither vessel would be suitable as none of the cargo handling equipment fitted could be used at sea or at anchor.
Vessel A would be more suitable as the high speed cranes would allow the operation to be completed more quickly.
As per SOLAS requirement fast rescue boats shall be constructed in such a way that:
They will not capsize
They are self righting
They are self righting or capable of being readily righted by its crew
They can be righted by 5 persons
In bulk carrier design what constitutes the main structural strength element?
The deck plating and shell frames
The collision bulkhead
The shell plating
The transverse watertight bulkheads
What can be done to minimize the reduction of GM due to free surface?
Close all watertight doors.
Reduce the number of slack tanks.
Load liquids into only one tank at a time
Load fluids only into tanks with transverse subdivision bulkheads
When should a master agree to load a cargo of concentrates?
When he is fully satisfied that the actual moisture content of the cargo is less than the Transportable Moisture Limit (TML)
After a laboratory analysis of the cargo has been carried out
As soon as the cargo holds have been passed for loading
Once the actual moisture content of the cargo has been declared by the shipper
Found in a commonly-used piece of equipment aboard an oil tanker, what does a "pellistor" do?
It is the common term applied to the metal, ceramic or other heat-resisting material which can cool even an intense flame below the temperature required for ignition, as utilised in a flame arrester
It is the reactive element in an oil / water interface detector
It is an electrical sensor unit fitted in a flammable gas detector for measuring hydrocarbon vapours and air mixtures to determine whether the mixture is within the flammable range
It is the electrical sensor which detects low pressure in an Inert Gas generating control system
What is the main difference between a THERMOSTAT and a TEMPERATURE TRANSMITTER, if any?
There is no difference.
The temperature transmitter is a digital component while the thermostat is an analogue component.
The thermostat has one or more contacts (open or closed) depending on the temperature/setting. The temperature transmitter converts a temperature signal to an electric signal.
The thermostat gives out an analogue signal depending on the switch setting. The temperature transmitter gives out a binary signal depending on the temperature.
You have made a turning circle at full speed in deep water. You are now going to make one with initial speed, slow ahead. Do you think the diameter will differ from that of initial full ahead?
Yes, it will be much smaller with slow ahead
Yes, there will be a large difference in the turning diameter between full and slow ahead
Yes, it will be much greater with slow ahead
The diameter will be the same whatever initial speed we have when starting the turn
Why is it important in a RoRo vessel to ensure that cargo is loaded in a uniform way
because it looks better and image is important
because it makes it harder to lash the cargo correctly if you don't
To prevent high sheer forces and bending moments on the vessel during the loading / discharge operations
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 type of search pattern is recommended in the IAMSAR Manual as most effective when the location of the search object is known within relatively close limits?
Parallel Sweep Search.
Sector Search.
Expanding Square Search.
Track Line Search.
During start up of a steam plant it is necessary to warm through the steam range prior to use. How should this warming through be carried out?
Open the bypass/warming through valve and then fully open the main stop valve over a period of two minutes to ensure the warming through is completed as quickly as possible.
Using the bypass/warming through line for the main stop valve and with all line drains open to ensure all condensate is removed.
With the line drains closed to avoid losing too much high quality water.
Crack open the main stop valve and keep the drains open.
Passenger ship engaged in international voyages shall carry through a muster for all passengers. At what latest time after embarkation shall the muster take place?
Before departure
No time limit
4 hours after the passengers embarked
Within 24 hours after the passengers embarked
What should be continuously monitored when carrying DRI cargoes?
Hydrogen emissions
Integrity of the inert gas blanket
Nitrogen emissions
Cargo temperatures
What is the maximum design working pressure for an Independent Type A cargo tank as may be used for the cargo containment system of a fully refrigerated LPG/Ammonia carrier?
Atmospheric pressure.
18 bar gauge pressure.
0.7 bar gauge pressure.
2 bar gauge pressure.
What is the meaning of "Make Fast"?
Make Fast means to secure a rope
Make Fast means to avoid all meals
Make Fast means to coil a rope
Make Fast means to act very quickly
What do you understand by: Secure the tug?
Secure the tug means: to pass a line to the tug
Secure the tug means: to let go the tug
Secure the tug means: to make fast the tug
Secure the tug means: to pick up the tug line
Check the items that can be a possible threat
All alternatives
"Piracy, Hijacking and Smuggling"
Bombing and Sabotage
Cargo tampering and Stowaways
An engine room rating is assisting the duty engineer during a period of UMS operation. After completing the tasks they have been busy with the engineer and rating leave the engine room which is returned to UMS mode. The rating realises that an oil tank filling valve has been left open. What action should be taken?
Inform another crewmember that he is going back into the engine room to close the valve.
Inform the duty engineer immediately so that the engine room can be re-entered and the valve can be shut.
Just leave the valve open as it is unsafe to enter the engine room alone. The high alarm will sound to notify the engineer when the tank is full.
Re-enter the engine room straight away and shut the valve.
Which vitamin is found only in meat and fish?
Vitamin C
Vitamin E
Vitamin B
Vitamin A
Відповісти
Carbon dioxide, CO2, can solidify and form dry ice at low temperatures. What is the solidifying temperature of CO2?
approximately minus 87.5 C
approximately minus 78.5 C
approximately minus 60.5 C
approximately minus 30.5 C
In terms of electrical units, what is Hz the abbreviation for?
Frequency in Direct Current (DC)
Frequency in Cycles per second
Revolution per minute
Measure for Resistance
What distinguishes a "parcel" chemical tanker from other designs?
Such a vessel is fitted with interactive computerised gauging, pumping, valve control and alarm systems for each tank, enabling all data for a single cargo to be concentrated in a single computer display.
Such a vessel is automatically able to achieve segregation of hazardously reactive noxious liquid substances by its design alone.
Such a vessel is fitted with a highly accurate tank gauging system, enabling it to deliver multiple parcels to different receivers from within the same cargo tank.
Such a vessel has a higher number of relatively small capacity, independent cargo tanks, each with its own line and pump, enabling it to carry and deliver multiple grades simultaneously.
Why do we have longtitudal bulkhead in a prismatic cargo tank
To reduce the free surface ”sloshing” on the cargo
To control the list of the ship
To load two grades of cargo in one tank
To increase the transverse strength of the cargo tank
What is the name given to the special list of cargo loaded on board a ship that needs to be prepared for reporting and other administrative purposes?
Manifest.
Stowage Plan.
Tally list.
Load Summary.
The timing of the engine is delayed. The exhaust temperatures are high. How would you expect this to affect the turbocharger?
Higher air and gas temperature after turbocharger.
Surging of the turbocharger.
Decreased turbocharger revolutions.
Increased turbocharger revolutions.
On a Container vessel, what is the function of a twistlock?
To secure manually operated hatch covers?
To secure timber cargo?
To secure winches from unintentional running?
To secure/lash containers?
Which Code applies to the design, construction, equipment and operation of ships certified to carry Noxious Liquid Substances in bulk constructed on or after 1st July 1986?
The International Ship Construction (Noxious Liquid Substances in bulk) Regulations.
The Bulk Chemical Code (the BCH Code).
MARPOL 73/78.
The International Bulk Chemical Code (the IBC Code).
On a RoRo vessel, a vehicle weighing 50mt is to be loaded in the fore and aft direction and lashed by chains/turnbuckles of SWL 5mt. By the general Rule How many sets of chains/turnbuckles should be used to secure the unit?
At least 10 in total
At least 10 per side
at least 15 per side
Hydrocarbons belongs to a chemical group named:?
Alkanes
Organic substances.
Carbohydrates.
Alkenes
What are the duties of the watch-keeping engineer?
The duties of the watch-keeping engineer are to keep constant surveillance of machinery and auxiliary systems and to inspection the steering gear at least once a watch
The duties of the watch-keeping engineer are to maintain the required ship's speed
The duties of the watch-keeping engineer are to ensure that the machinery spaces are properly manned
The duties of the watch-keeping engineer are to keep constant surveillance of the steering gear and hydraulic system
Which of the following could cause a blowback from a steam boiler oil fired furnace?
Trying to ignite burner from hot brickwork
Having the fuel oil temperature too high
Having the fuel oil pressure too high
Opening air registers too quickly
A Ship Security Assessment is integral to the creation of your ship’s security plan.
FALSE
TRUE
.
What is a "closed discharge" operation on an oil tanker?
A discharge operation which is commenced with all manifold and tank valves on the vessel initially set in the closed position
A discharge operation carried out without opening any lids or sighting ports and where gauging is performed either by a fixed system or by a portable system gaining access through a vapour-lock.
A cargo discharge which is performed to a shore tank directly adjacent to the berthed vessel and which is wholly controlled by a terminal operator
The pumping of tank washings, conducted through underwater discharge outlets only
How is the bilge pump protected from cargo debris being sucked in from the bilges?
Filter in the bilge suction pipeline
Non-return valve
Keeping the bilge space clean at all times
Strum box
While assisting the watchkeeper with routine cleaning of the fuel oil separator the watch rating is requested to clean the plate stack. Which of the options given is the preferred method for such a task?
With the plate stack in position fill the purifier bowl with clean diesel oil and quickly switch it on and off to wash the plates.
Soak the dirty plates in a solvent for an hour and then stand them on the engine room deck to drain off.
Soak the plates in a suitable solvent until all of the dirt has loosened off and wipe clean with rags.
Scrape the plates as clean as possible with a packing knife and then wash them with a high pressure water hose.
Earlier reefer vessels designed and built for liner trade usually had two or three tween decks approximately 2 to 2.5 metres in height and deep lower holds approximately 4 to 5 metres deep. Modern designs usually incorporate more decks each approximately 2.3 metres in height. What is the main reason for this fundamental design change?
The increased proportion of chilled as opposed to frozen cargoes that are carried.
There is an almost universal use of standard height pallets.
It is easier to construct vessels with shallow decks.
The increased number of container vessels has reduced the tendency to carry general cargo outbound from Europe or North America to Australia and New Zealand on reefer vessels.
The IMO Gas Carrier code defines liquefied gases, of which LNG is an example, as those gases with absolute vapour pressure greater than 2.8 bar at a certain reference temperature. What is the reference temperature used in the definition?
15.8 degree C.
37.8 degree C.
100.0 degree C.
25.7 degree C.
here do you find detailed information and specific technical requirements for life-saving appliances?
SOLAS
Safety Management System
ISM Code
Life-Saving Apliance Code (LSA Code)
Which of the following policies will best prevent germs and contamination being introduced into the galley area?
Post a notice outside the galley asking people to wash their hands before entering the galley area.
Require personnel from other departments to be checked by a member of the galley staff before allowing them to enter.
Prohibit unauthorised persons from the galley area when food is being prepared or served.
Prohibit unauthorised persons from the galley area at all times.
After discharge of a cargo of bananas there are a lot of cartons of condemned fruit on the deck. The vessel is not in a special area and is more than 100 miles from land. Select from the given options the best way to dispose of the condemned fruit.
Remove and retain all of the packaging including any inner plastic bags and dispose of the condemned fruit overboard.
Keep the cargo onboard until the vessel enters a port with suitable disposal facilities.
Dispose of the complete cartons of condemned fruit overboard and make an entry into the Garbage Disposal Log.
Keep the fruit for crew consumption and dispose of the packaging.
After main power is restored, a timed sequential restart of motor-driven auxiliaries is necessary to avoid:
Overvoltage due to current surges
Generator overload due to many motors starting at simultaneously
Overloading creating earth faults
Over-frequency due to overspeed of generator
The successive stages of all cargo and ballast handling operations on an oil tanker must be recorded on board. What is the name of the book where these details are listed?
The Oil Record Book.
The ODME Record Book.
The MARPOL Record Book.
The Deck Operations Logbook.
Which of these are indications that a parcel is suspicious?
The parcel came from Joe in the safety department and arrived quicker than expected.
"The parcel is wrapped in clean, brown paper and is addressed to a crewmember from his wife."
"The parcel is addressed to no one in particular, arrives unexpectedly and seems heavy for its size."
The parcel smells like chocolate.
What kind of extinguishing-remedy would you choose to put out an electrical fire?
Dry extinguishing remedy.
Water
Combination of powder and water.
Foam.
How many buoyant smoke signals are carried in each lifeboat?
6
12
4
2
Unconscious casualties who are breathing and whose hearts are beating should be placed in the Recovery Position. Why is this position so important?
The recovery position makes it easy to maintain any kind of bleeding.
The position prevents the pasient from falling asleep.
Because it keeps the heart beating.
The position ensures that an open airway is maintained.
Даний онлайн-тест складається з 90 випадкових питань із тестів CES 5.1 з обраної вами тематики.