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The aim of fire detection is
to activate the alarm
all the answers are correct
to discover where a fire starts
to begin applying an emergency plan
By running a centrifugal pump what will happen if the NPSHA (Net positive suction head available) is less than NPSHR (Net positive suction head required) ?
The pump will not draw liquid.
The pump will overheat.
The pump will suffer damage
The pump needs to run faster.
In order to achieve a greater effectiveness when using a permanent system of extinction with gases (for example CO2), we must…
Check the valves, seal the area and activate the extinction system
Only activate the alarm, then the extinction system
Activate the alarm, evacuate the area and seal the place, then activate the extinction system
Activate the extinction system before we activate the alarm
What would be the stopping distance of a VLCC when proceeding at 8 knots in deep water and the engines are put 'Full Astern'?
8 nautical miles
4 nautical miles
15 ship lengths
Varies, but can be determined from trial data
The rudder is hard over, full ahead in deep water. How much lift force remains when the engine is stopped?
About 20 %
About 50 %
About 5 %
About 80 %
Your vessel is transiting the Panama Canal. Which manning level is applicable?
Sufficiently manned with officers and crew to permit safe handling of vessel
A reduced crew is acceptable since the Panama Canal authorities are supplying transit crew
Manning level as per statutory requirements + 10% more to handle mooring equipment
Manning level as per (statutory requirements) masters discretion
Sea area A4 is in maritime radio traffic a sea area:
Don't know
with the exception of sea areas A1,A2 and A3, within the range of Inmarsat-satellites, where continuous alarm is available
within VHF-radiotelephony-range of a coast station or coastguard station, where continuous DSC-alarm is available
outside the sea areas A1, A2 and A3
Your vessel is a tanker in ballast and the two vessels are interlocked after collision. You have already made clear that all people are well taken care of and you will try to separate the two vessels. What should be your greatest concern?
If the vessels separate, the other vessel may run away and you will be the only one to blame.
That the separation may cause sparks that can possibly ignite the oil or any other flammable substances.
The exact time of the collision.
That you have your permission from the company to do so.
Which is the preferred method for starting an air conditioning refrigeration compressor which has been shut down for a period of time?
Start with all system valves fully opened.
Start with the discharge valve throttled in to prevent excess condenser pressure.
Start with suction valve throttled in to minimise risk of drawing liquid refrigerant into the compressor.
Start and stop repeatedly until suction pressure and oil pressure are normal.
You are crude oil washing tank 1C tank. The duty deck officer reports that the oxygen reading in the tank is 9%. What should you do ?
Carry on with the washing until you have checked the inert gas plant is fully functional.
Carry on with the washing but attempt to lower the oxygen level to less than 8%.
Stop the washing process and do not resume until the oxygen content in the tank is below 2%.
Stop the washing process and do not resume until the oxygen content in the tank is below 8%.
Why are Chromate Based Cooling Water Treatments not allowed when the system is connected to a fresh water generator?
It increases the chloride level.
It could poison the fresh water if leakage occurs.
Chromate Based Cooling Water Treatments are not allowed in any cooling water system.
It reacts with metals used in the fresh water generator.
When loading LNG into prismatic type cargo tanks it is sometimes prohibited to leave any of the tanks between 10 to 80% full at completion of loading. What is the main reason that it is recommended to avoid this prohibited partly filled range?
The free surface effect might result in excessive sloshing loads.
It will increase the rate at which boil off gas will be produced.
It would be an uneconomical use of cargo capacity.
It will increase the vapour space and therefore increase the risk of flammable mixtures developing.
What are the main elements in a damage control plan?
A damage control plan is the same as an emergency plan
Arrangements for correction of list due to flooding within 15 minutes
Boundaries of the watertight compartments for decks and holds. Position of controls for opening and closing of watertight compartments. Arrangement for correction of list due to flooding.
Instructions and procedures for reporting damage to the Company
For transporting a casualty with a fracture; If a Neil-Robertson stretcher is not available:
Wait for the Neil-Robertson strecher to arrive
A wide wooden board may be used
One person should lift the casualty using Fire-mans lift
Two persons should lift the casualty with great care
What must you ensure when using portable slopes to discharge ro-ro units?
They must be new
They must be free of dirt
The surfaces must be of the fish-bone type
They must be exactly aligned with the units’ tyres
At the design phase of a container ship, how is the loss of strength resulting from the large deck openings, compensated?
Large deck beams longitudinally and athwartships at the sides and ends of hatches
Additional transverse bulkheads
Large doubling plates at the hatch corners
Additional longitudinal bulkheads
Failed O-rings on a 2 stage air compressor cylinder liner have resulted in a water leak. Where is the leaking water most likely to go when the compressor is operating?
Into the LP cylinder.
Into the HP cylinder.
Into the intercooler.
Into the crankcase and mix with the lube oil.
When there is a need to interupt current flow in a high voltage system it may be very difficult to quench the electrical arc which is generated at the circuit breaker contacts. Which of the following arcing media is commonly found in high voltage marine switchgear?
Vacuum
Air
Water
Oil
A simple level control for a water tank consists of a horizontal lever with a float at one end and a filling valve at the other. The lever is provided with an adjustable pivot positioned between the valve and the float. How will the 'offset' in the system be affected under changing demand conditions if the pivot is moved closer to the filling valve?
It will increase the offset across the demand range.
It will reduce the offset on low demand but increase it during high demand.
It will increase the offset on high demand but reduce it on low demand.
It will reduce the offset throughout the demand range.
Which group of containerised dangerous goods is considered the most hazardous for marine transportation, due to possible decomposition at normal temperatures?
Inflammable liquids
Organic peroxides
Infectious substances
Toxic gases
When securing a non-standardized portable tank on a RoRo vessel, what is a favourable securing angle that will prevent it from transverse sliding?
15 to 18 degrees
18 to 23 degrees
30 to 33 degrees
23 to 30 degrees
Information about your ship’s security arrangements and procedures is stored electronically. Which of these measures will help safeguard it from potential threats?
Work history verification
Encoded email messages
Protective markings
Passwords
When preparing a cargo tank on a liquefied gas carrier for loading cargo following inspection of the tank a number of different steps are required. What is the first step required after such an inspection?
Inerting.
Drying.
Gassing up.
Cooling down.
On a RoRo vessel, what additional securing arrangements should be used when loading a vehicle on an incline or fixed Ramp
Double the normal lashings should be used
None
The Vehicle should also be chocked under its wheels
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
During the anchoring procedure, what would the Chief Officer understand by the following request from the bridge, "Which way is it leading"?
The Master is requesting the Chief Officer to inform the bridge of whether he can determine which way the ship is moving in the water.
The Master is asking the Chief Officer whether the ship needs to be moved forward and take the weight off the anchor cable.
The bridge would like to know the direction of the anchor cable from the hawse pipe.
The Master is asking the Chief Officer whether the vessel is dragging anchor
A piston rod retaining nut needs to be tightened during maintenance on the main engine. Which of the given methods should be used to ensure it does not come loose in service?
Tighten it 10% more than the manufacturer's recommendation using a torque wrench.
Tighten it to the manufacturer's recommendations using a torque wrench.
Tighten it as tight as possible using a spanner and extension pipe.
Tighten it as tight as possible using a flogging spanner and a hammer.
Select the option which best completes the following statement. "When carrying out repairs to damaged hatch gratings it is best to use…
…galvanised crosshead screws."
…galvanised nails."
…mild steel nails."
…mild steel screws."
Which of these are indicators that an individual may be a drug smuggler?
The individual wears bulky or out of season clothing.
The individual is disinterested in the ship’s cargo.
The individual spends his or her free time hanging out with others.
The individual makes small local purchases.
What is the maximum stowage height for containers on deck of a General Cargo Vessel, if the vessel is not specifically designed for the carriage of containers?
The maximum height is two containers
There is no limit apart from point load limitations
The maximum height is one container
Containers must not be carried on deck
Is there any requirements regarding double bottom for large passenger ships?
Yes, in ships of 76 m in length and longer, a double bottom shall be fitted amidships, and extend to the fore and aft not less that ? of the ship length.
No, a double bottom is not required
Yes, in ship of 76 m in length and upwards, a double bottom shall be fitted amidships, and shall extend to the fore and after peak bulkheads, or as near thereto as practicable.
Yes, a double bottom shall be fitted amidship
What is the main purpose for taking diesel engine crankshaft deflections?
To check for weardown of the bottom end bearings.
To check for weardown of the main bearings.
To allow calculation of the load on each of the bearings.
To check that the shafting is in a straight line.
A reefer vessel is to load a part cargo of frozen beef hocks (large joints of beef, usually quarters, not packed in cartons). In deciding which would be the most appropriate space on a conventional reefer vessel, which of the given options would be the preferred choice?
Any space will be acceptable as this is a hard frozen cargo and relatively easy to handle and carry.
4A deck as this is the largest square space on the vessel and will allow good access and air flow for the cargo.
A cargo space low in the vessel as this cargo has a relatively high stowage factor.
1C deck as this is the narrowest space on the vessel and will best constrain the cargo from any possible movement during the voyage.
What is the main purpose of 'gassing up' the cargo tanks of an LNG carrier?
To ensure a uniform temperature in the cargo containment system prior to loading.
To remove IG tank atmosphere with warm cargo vapour prior to loading the cargo.
To avoid a pressure rise in the liquid dome during loading.
To bring the cargo containment system to a temperature which will prevent excessive boil off during loading.
What is the purpose of fixed stacking cones?
To prevent the horizontal movement of 20’containers at tank top level
To prevent the horizontal movement of 40’containers at tank top level
To lock 20’containers in 40’ cell guides
To prevent movement of 20’and 40’ containers at deck level
When is it necessary to seal a CO2 injection line into the designated ballast hold?
When testing the CO2 system
Prior to ballasting the hold
When carrying non-inflammable cargoes
When handling cargoes that emit dust
Why is a vessel entering dry dock normally slightly trimmed by stern?
To minimise the loss of stability.
To position the vessel easily over the blocks.
To allow drainage of water off the docks.
To allow better manoeuvring when entering into the dry-dock.
Why are pure RoRo car carriers considered as being high risk design vessels where their stability is concerned.
Because they have few internal bulkheads
Because of the relatively small clearance between waterline and stern ramp sill when fully loaded
Because they can easily capsize if there is ingress of water or ballast operations are not handled correctly
When washing a cargo hold of a bulk carrier prior to loading a cargo of steel products, why is the space washed down with salt water and then fresh water?
To maintain safe access by hold ladders
To assisting in drying the hold space
To prevent damage to paint coatings
To remove all traces of salt that would possibly contaminate the cargo if water drops onto the cargo
Which of the following substance is ozone-depleting?
Ammonia
CO2
Halons
Neon
What does the term liquefaction mean with respect to some heavy metal concentrate cargoes on a Bulk Carrier?
The cargo is very dry and will not reach a flow state
The cargo may suffer moisture migration and become semi-liquid near the top of the stow
The cargo may self-heat on voyage
The cargo pile will always be stable
How is the condenser cooling water flow regulating valve automatically controlled in a vapour compression refrigeration system?
By the compressor discharge pressure.
By the quantity of refrigerant in the system.
By the temperature of the refrigerant after the evaporator.
By the temperature in the refrigerated room.
When you are calibrating an instrument what is the most common first step in the procedure (consult the manual)
Adjustment of Zero-point and span
Adjustment of span
Adjustment of range
Adjustment of linearity
Where are the two places that a hydraulic cargo pump can be started from on a chemical tanker?
Remotely, from the cargo control room or from the hydraulic aggregate room.
Locally at the pump on deck and remotely from the hydraulic aggregate room.
Locally at the pump on deck and remotely from the cargo control room.
Remotely, from the cargo control room or the engine control room.
What is the name of the simplest hydrocarbon composed of one carbon atom and four hydrogen atoms?
Methane.
Propane.
Ethane.
Pentane.
On a RoRo vessel, what is a low-bed Ro-Ro unit that is towed onto a ship called?
Mafi Trailer
Trailer
Flatrack
Flatbed
When can a vessel load concentrates whose moisture content exceeds the Transportable Moisture Limit?
When proved to an Administration that there is adequate stability
When the distance to the next port is less than 200nm
When proved to an Administration that there is adequate structural integrity
When proved to an Administration that there is adequate stability as well as structural integrity
The majority of marine diesel engines operate with either a pulse or a constant pressure turbocharging system. What is the main difference between these two systems?
Pulse systems have all of the cylinder exhausts connected to a common large exhaust gas manifold
Pulse systems always have a turbocharger for each group of three cylinders.
Constant pressure systems have all engine cylinder exhausts connected to a common large exhaust gas manifold.
Constant pressure systems only ever have a single turbocharger irrespective of the number of cylinders on the engine.
Do we find integral tanks as cargo tanks on gas carriers?
Integral tanks are normally not allowed on gas carriers other than LPG carriers
Integral tanks are allowed on all types of gas carriers
Integral tanks are normally not allowed on gas carriers if the cargo to be carryed have boiling point less than –10oC at atmospheric pressure
Integral tanks are normally allowed on gas carriers if the cargo to be carryed have temperature above –10oC
What general background colour is used on warning signs that indicate emergency or first-aid features, or indicate a safe condition?
Blue.
Green.
Yellow.
Red.
What is done at a five yearly thorough inspection of lifting plant on a General Cargo vessel?
Derricks are tested
Lifting plant is proof load tested and all parts thoroughly examined
Deck cranes are tested
Deck cranes are tested and their parts thoroughly examined
The reporting of incidents involving harmful substances and / or marine pollutants is regulated under which international guidelines?
Protocol I of MARPOL 73/78.
The UN Convention on the Reporting of Accidents and Incidents which Present a Hazard to the Marine Environment 2004.
Appendix B of the Supplement to the IMDG Code.
Annex II to SOLAS 1974.
What is the approximately efficiency of the ejector?
The ejector's efficiency is between 60% and 70%.
The ejector's efficiency is between 30% and 40%.
The ejector's efficiency is between 70% and 80%.
The ejector's efficiency is between 20% and 30%.
There are a number of different designs of tanks used for the cargo containment systems for liquefied gas carriers including independent tanks. How many different types of independent tanks are there in the IMO Gas Codes?
There are three types of independent tanks; Spherical tanks, Membrane tanks and Prismatic tanks
There are three types of independent tanks, type A, B and C
There are two types of independent tanks; type 1 and 2
There is only one type of independent tanks; Spherical tanks
What is a Declaration of Security?
A checklist jointly completed by the Ship Security Officer and the U.S. Coast Guard
A document stating the ship’s security level
A document between the port and the cargo owner stating security
A checklist jointly completed by the ship and shore security representatives
What will you do if you are told to operate unknown mechanical equipment?
As time is money, the trial and error method shall be used.
Ensure that all safety guards and devices are disconnected.
Seek advice from your superior before attempting to operate it.
Do not operate the machine, but read the manual before reporting to the head of your department
Which of the options given is likely to be the reason for a drop in the charge air manifold pressure of a diesel engine operating with an exhaust gas turbocharger?
Insufficient cooling of the charge air.
Exhaust gas boiler fouled.
Engine room exhaust fans stopped..
Scavenge ports dirty.
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
When preparing cargo cranes for operation on a General Cargo ship using shore personnel, what are three of the most important checks to be made?
Crane wire is greased, windows clean and cab heater on
Check that cab is clean, air conditioning is on and windows clean
Limit switches are not in use, wires are clean and emergency stop is isolated
Check that winches, brakes and emergency stops are working correctly
The Reid Vapour Pressure (RVP) test is a simple and commonly used method for measuring which of the following characteristics of an oil cargo?
The nominal vapour pressure of the liquid at 38.7 degrees C.
The actual vapour pressure of the liquid at 15.6 degrees C.
The uncorrected vapour pressure of the liquid at 59 degrees C.
The absolute vapour pressure of the liquid at 37.8 degrees C.
An auxiliary engine is fitted with a duplex type lubricating oil filter. The in-use element requires changing. What procedure should be used to fit the new element?
With the engine running, position the changeover cock so that both filters are in use to reduce the pressure before.
With the engine running, change over to the other filter after priming it and replace the dirty element after checking there is no pressure on dirty filter housing.
With the engine running, shut off the filter inlet and quickly fit the new element.
The engine must be stopped to fit a clean filter element..
Which of the following statements is incorrect with regard to loading bagged fishmeal?
Cargo holds should be free of cargo residues
Cargo holds should be free of infestation
Dunnage is not required
Cargo holds do not require ventilation
What will you do if you are helmsman and the OOW (officer on watch) gives you the order: ”Starboard ten”
Repeat the command back and then change course 10 degrees to starboard of present course
Repeat the command back and then put the wheel over sufficiently for the ship to swing at a rate of 10 degrees per minute to starboard.
Repeat the command back and then turn the wheel to make the rudder turn 10 degrees to starboard of amidships
Repeat the command back and then allow the vessel to drift 10 degrees to starboard of original course
The thermal conductance capability is expressed by a material's thermal conductance number and states the heat quantity. What is the denomination for heat quantity?
Enthalpy.
Joule.
Calorific value.
Watts.
On a RoRo vessel, what should be used to secure cars with aluminium tyre rims?
8mm diameter steel wire rope
Steel chains
Wooden wheel chocks only
A car sling
Which of these covers the rules and regulations for General Average?
The Hague rules
The Hamburg rules
The York Antwerp rules
The Hague Visby rules
Which of the following has the highest diffusion resistance?
Stationary air.
Glass:
Mineral wool.
Freon 22.
How does the maximum oil film pressure in a white metal journal bearing operating under full fluid film conditions compare with the pressure of the lubricating oil supply system?
The pressure is greater than the pressure in the lubricating system and varies with the journal load.
The pressure is the same as the pressure in the lubricating system regardless of the journal load.
The pressure is less than the pressure in the lubricating system and varies with the journal load.
The pressure is greater than the pressure in the lubrication and is constant regardless of the journal load..
A two step controller (open/close) has failed and the only available spare controller is a P+I controller. Select, from the options given, how the P+I controller could be set up to achieve approximate two step control.
Set the proportional band to maximum width and the integral action to minimum (repeats per minute).
Set the proportional band to maximum width and the integral action to maximum (repeats per minute).
Set the proportional band to minimum width and the integral action to maximum (repeats per minute).
Set the proportional band to minimum width and the integral action to minimum (repeats per minute).
To maintain good relationship among the crew on board a vessel, one must be:
Polite and diplomatic while talking to crew members
Give authority to others
Strict and authoritative while giving orders
Understanding, Co-operative, and have respect from both sides
What may be the cause of black smoke from the funnel?
The fuel oil has not been adequately heated.
Incomplete combustion owing to wrong mixture of air and oil.
The fuel oil is of inferior quality.
An electrically operated turning machine is used during repairs while the engine is running.
When should the watch-keeping engineer inform the bridge that the main engine is ready for manoeuvring?
When engine room staff are working aloft.
When the ship's course needs to be altered.
Once the engine is properly prepared and tested and the engine room is correctly manned
Three or four hours before heavy weather is expected.
What is Maximum Securing Load?
The load capacity of a device used to secure cargo on board
The combined safe working loads of various devices used to secure an items of cargo on board
The combined capacity of several devices used to secure an item of cargo on board
The safe working load of a device used to secure cargo on board
After clearing lines following the loading of cargoes such as Naphthas, Xylene, Toluene, Benzene, White Spirits and Kerosenes, it is necessary to wait for a specified period before taking manual ullages or samples. Why is this?
These are all "static accumulator" cargoes. As a cargo line is blown, electrostatically charged bubbles enter the tank and rise through the cargo, generating a high voltage at the surface. It is necessary to wait for a specified period of "relaxation time", to allow the charge to disperse, before introducing any potentially conductive object.
These are all cargoes which may form a wax on the surface of the cargo. As a cargo line is blown, bubbles enter the tank and rise through the cargo. If exposed to cold air as they reach the surface, a wax "carpet" may form across the whole tank. It is necessary to wait for a period of "levelling time" before allowing any air to enter the tank and taking any manual ullages or samples.
These are all cargoes with a high vapour pressure. As a cargo line is blown, the pressure in the ullage space above the surface of the cargo increases. It is necessary to wait for a period of "settling time", before opening the tank lids for sampling and gauging.
These are all cargoes considered to have high noxious vapour levels. As a cargo line is blown, the surface inside the tank is severely disturbed, releasing large quantities of these vapours. It is necessary to wait for a period of "adjusting time", before carrying out any open sampling or gauging.
When is a visitor onboard required to present an ID?
Only on SECURITY Level 3
On SECURITY Level 2 & 3
Never
"On SECURITY Level 1, 2 & 3"
What is the name of this unit?
A hydrostatic release unit
A liferaft release unit
An antistatic release unit
A slip hook
What name is given to the part of the discharging operation on an oil tanker when the last remaining contents of a tank or line are being pumped out?
Puddling
Purging
Lifting
Stripping
All cargo hatch covers on a bulk carrier are to be hose tested in the presence of a surveyor, prior to loading a cargo of steel coils; what should be done to the hatch covers before the test?
Hatch covers in open position
Hatch cover to be lowered by jacks onto seals but not secured
Hatch cover in normal port condition ready to open
Fully secured to a sea- going condition with all side cleats ( if any) fitted
Some spaces and zones on a liquefied gas carrier are classed as gas-dangerous as it is likely that they may contain flammable vapour and do not have venting arrangements to prevent this. What is the designation used for the other spaces and zones on liquefied gas carriers?
Gas-safe.
Vapour-free.
Gas-free
Gas-less
Very roughly, the gas mixture from Crude Oil can be represented by the hydrocarbon gas Propane. What is the approximate upper flammable limit(UFL) of crude oil vapours by volume in air?
8 to 9%
12 to 15%
10 to 11%
5 to 6%
Select the option which correctly completes the following statement. "A conventional reefer vessel operating with a controlled atmosphere plant must have cargo spaces which…
… have a gas tight seal."
… are fitted with variable speed fans."
… have the normal bulkhead and deckhead penetrations required for a reefer compartment."
… have a minimum number of deckhead and bulkhead penetrations."
What are defined as the gas dangerous areas onboard a gas vessel?
Gas dangerous areas onboard gas carriers are cargo compartments and cargo piping
Gas dangerous areas onboard gas carriers are cargo compartments and cargo piping, hold spaces and other spaces where cargo pipes are located
Gas dangerous areas onboard gas carriers are cargo compartments and cargo piping, hold spaces and other spaces where cargo pipes are located, compressor and pump room, open deck over cargo area
Gas dangerous areas onboard gas carriers are cargo compartments, cargo piping and bunker tanks with pipes
Which of these definitions is that of a "Marine Pollutant" under the IMDG Code?
Any substance which is deemed hazardous to the marine environment.
A substance which is subject to the provisions of Annex III of MARPOL 73/78, as amended.
A substance which, because of its tendency to degrade in seafood, or because of its hazard potential to the aquatic environment is subject to the provisions of Annex I of MARPOL 73/78, as amended, and carried by sea accordingly.
A substance which is subject to the provisions of Chapter V of SOLAS 1974, as amended.
What basic information do we get from the pump's flow-head curve?
We get information about the NPSH.
We get information about the pump's suction head.
We get information about the pump's back pressure.
We get information about the pump's lifting height and liquid flow.
The engines have failed and will require at least 24 hours to be available as a reliable means of propulsion. Your vessel is about 20 miles off the coast in a tidal area. What are the initial steps that should be taken to ensure the safety of the ship?
Display NUC lights and determine if anchoring is possible
Display NUC lights and inform the nearest Coast Guard of you predicament.
Display NUC lights and send out a navigational warning to all other vessels of your position and situation
Display NUC lights and investigate the tidal flow over the next 24 hours and the probable drift of the vessel.
An oil tanker's tank-cleaning machine with a rotational speed of 1 rpm and a slected pitch angle of 1.5 degrees is used to perform a bottom wash with a vertical angle from 40 degrees to 0 degrees for 1.5 cycles (3 passes). If the throughput of the machine at design pressure is 90 m3/hr, what will be the washing time and quantity of crude oil required?
40 minutes and 60 cubic metres of oil.
48 minutes and 70 cubic metres of oil.
30 minutes and 45 cubic metres of oil.
36 minutes and 48 cubic metres of oil.
Which is the correct method of securing a lashing belt to a vehicle?
Using a knot
Using a ratchet
By means of a hook facing away from the deck
By means of a hook facing the deck
What is the greatest danger associated with the carriage of chemicals?
Leakage from the carrying receptacles
Outbreak of fire
Evaporation
Reaction with the carrying receptacles
How many buoyant smoke signals are carried in each liferaft?
4
Nil
6
2
Which position is the best to stop bleeding from the nose?
Holding the nose above steamed water.
Laying on the back, leaning the head as much back as possible.
Laying on the back, holding a wet, cold towel on the top of the nose.
Sitting on a chair, leaning forward, with two fingers pressing the nose together.
Ce test en ligne se compose de 90 questions aléatoires issues des tests CES 5.1 sur un sujet de votre choix.