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Home Online tests CES Dry cargo Deck Support Test online CES 5.1 for Deck department, Support level, Dry cargo vessel
Online testing: Test online CES 5.1 for Deck department, Support level, Dry cargo vessel
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The test consists of random questions on a selected topic.
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What is a polar (liquid)?
A liquid that mixes with water
A liquid that conducts electricity
A liquid that emits flammable vapour
A liquid that doesn't mix with water
On a RoRo vessel, if the Manufacturer and shipper of a vehicle have not provided instructions and the vehicle does not have fixed lasing points what can be used to secure the lashings
The Tie Rods
The wheel apertures, or other suitable fixed point on the vehicle
The Anti Roll Bars
Which of the following INMARSAT services provides communications by telephone, telex, facsimile (f, and data?
INMARSAT-A.
Safety NET.
VHF-FM.
INMARSAT-C.
What is false regarding the function :” Reception of shore to ship distress alerts ”
On area A1 this function is based on the use of VHF DSC
On area A2 this function is based on the use of MF DSC
On area A3 this function is based on the use of HF DSC
On all areas this function is based on the use of SARSAT COSPAS Epirb
How do you consider the indicated speed for berthing?
To be sufficient
Too slow
Too fast
It is up to the pilot to decide
The ship has completed a 360 degree turn at full speed in deep water. The ship is now to repeat the turn at full speed in shallow water. What will be the difference in the turning circle diameter?
The turning diameter will be smaller in shallow water
The turning diameter will be the same for all depths
The turning diameter will be increased in shallow water
It will be the same provided the UKC is 25%-50%
*The person in charge of a lifeboat :
must check that the crew under his command are acquainted with their duties
must have a list of the survival craft crew
all of the above
must check that the second in command has also a list of the lifeboat crew
Which one of the listed requirements regarding liferafts does not correspond to present regulations? Every liferaft shall be so constructed that:
It's canopy has viewing ports in all directions
It can be dropped from a height of at least 18 metres
It can be towed at a speed of 3 knots with full complement
It can withstand repeated jumps from a height of 4.5 metres
What is the purpose of a "Strum Box" on a General Cargo Vessel?
To prevent solids from entering the cargo hold via the bilges
To prevent water from entering the cargo hold
To prevent all solids from entering the bilge system
To prevent solids of certain size from entering the bilge system
Why is it necessary to have routine testing of the cooling water?
To detect the presence of contaminants in the water that may be injurious to the cooling system.
It is not necessary.
To ensure that the proper residuals of treatment chemicals, as specified, are maintained all time.
To trace leakage in the cooling water system.
On a RoRo vessel, to what should a heavy vehicle be secured on a car deck?
Clover leaves
Crinkle bars
Lashing holes
'D' rings
In discussing the characteristics of an oil cargo, what is the "cloud point"?
The temperature at which a liquid hydrocarbon begins to congeal and take on a cloudy appearance, due to the bonding of constituent paraffin compounds.
The depth within a cargo above which no waxy solids are entrained.
The temperature at which an oil product begins to emit vapours which can be observed in a spectroscope due to the volume of solid particles extracted during evaporation.
The surface pressure at which vapours from an oil cargo overcome gravity and friction and are expelled from the containing compartment.
A conventional reefer vessel fitted with derricks has four large diameter Yokohama fenders supplied by the charterer. What kind of cargo operation from those given in the options is the vessel most likely being chartered for?
Loading at a dock equipped with poor fendering.
Loading cargo from barges.
Transhipment in the open sea directly from fishing boats.
Loading at a dock which experiences a large tidal range and at which strong winds are common.
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
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.
How are the membrane cargo containment systems that are frequently used on LNG carriers supported?
The membrane system is fully self supporting.
The membrane system is supported directly by the inner hull through support brackets.
The membrane system is supported by the inner hull through the insulation.
The membrane system is formed with corrugations which gives sufficient support.
Pasta is often referred to as "al dente". What does this mean?
Coated with oil before boiling.
Part cooked.
Tender, but slightly firm to the bite.
Served separately from other ingredients.
On a Container vessel, what can cause large loads in lashings when containers are secured to a lashing bridge?
The lashing bridge is flexible but the hatch covers are fixed, causing the lashings to go alternately slack and tight
The lashing bridge is fixed but the hatch covers move when the ship rolls and pitches, causing the lashings to go alternately slack and tight
Due to flexibility of the hatch covers
Due to inflexibility of the lashing bridge
Some ships generate electrical power at 440 Volts, but then step up this voltage to supply specific electrical equipment. One common example, may be to feed a large bow thruster. Why is this done?
A large bow thruster will draw very large currents at low voltage. Being typically remote from the generator, significant voltage drops would occur at low voltage.
The shipyard could not purchase High Voltage generating plant at the time of manufacture, so they used what was available at the time.
Manufacturers can supply High Voltage bow thrusters at less cost, and the power factor is improved.
The overall ship's electrical load does not justify High Voltage generating plant. This method allows more power to be delivered to the bow thruster at low running cost.
What general background colour is used on warning signs which require a specific "mandatory" action, such as one which might require the wearing of a safety harness during a particular work task?
Blue.
Red.
Yellow.
Green.
All liquefied gas carriers, including LNG carriers, must follow the requirements of the IMO IGC code. What are the main areas covered by the IGC code for gas carriers?
Gas carrier navigational and operational procedures.
Gas carrier design and equipment.
Liquefied gas handling principles for ships and terminals.
Gas carrier cargo loading and discharge procedures.
Which types of compressors are used as cargo compressors onboard gas carriers?
One, two and three stage piston compressors.
One, two and three stage screw compressors.
Oil free screw and piston compressors.
Piston, screw and centrifugal type compressors.
An engine room rating is assisting in the maintenance of some of the valves on the low pressure steam range. Which packing material, from the options given, would be the best choice for repacking the gland of a low pressure steam valve?
Graphite fibre packing.
Greasy cotton packing.
PTFE rope packing.
Lead covered cotton packing.
An LNG carrier is equipped with membrane type tanks with a MARVS less than 0.7 bar. What additional cargo containment requirements, if any, are needed for this type of cargo tank arrangement?
Only a partial secondary barrier is required.
No secondary barrier is required as this is a self supporting arrangement.
Only a drip tray is required.
A full secondary barrier is required.
Which one of the following international regulations is normally used when handling dangerous goods?
IMDG code
HB code
KLMNG code
SOLAS code
What is a low location lightning system?
A light system powered by battery or fluorescent signs mounted at deck level indicating the way to the nearest exit
A system displaying the escape route from all cabins by light points in the ceiling, powered by battery
An illumination system for all corridors in cabin areas
An emergency illumination system that illuminates all deck areas to a minimum
A hazard is is a source of potential harm or damage or a situation with potential for harm or damage. Risk is determined based on evaluation of two elements. Which two elements?
The consequences of the hazardous event and the available personal protective equipment we have onboard
The likelihood that a hazard may occur and the consequences of the hazardous event
The likelihood that a hazard may occur and the available personal protective equipment we have onboard
The likelihood that a hazard may occur and the financial consequences for the Company
From the options, select the best description of the function of a buttress fitting on a container vessel.
To avoid excess load placed on the tank top.
To ensure an even distribution of weight throughout the stack.
To transfer forces from the container stow to the ships structure.
To maintain a uniform level stow across the tier of containers.
Why does MARPOL require debottoming of tanks prior to COW?
To prevent electrostatic generation
In order not to mix crude and water
To prevent corrosion in COW machines and COW piping
To prevent corrosion of tanks
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
Anyone who violates the provisions of Norwegian law or the provisions of regulations laid down by virtue of Norwegian law, relating to contract of engagements and account book, to notification to, appearance before, or to the taking of evidence, shall be liable to????
Fines.
Imprisonment for a term not exceeding six months.
Imprisonment for a term not exceeding three months.
Fines or imprisonment for a term not exceeding three months.
What is the meaning of organic chemistry?
Organic chemistry is substances that contain hydrocarbons and oxygen.
Organic chemistry is substances that do not contain of hydrocarbons.
Organic chemistry is substances that contain hydrocarbons.
Organic chemistry is substances that contain of hydrocarbons, nitrogen and oxygen.
This resistor has the value of 68 k ohm. Which colour code should be marked on the rings (assume ring d is the tolerance ring)?
a. red b. black c. yellow
a. blue b. grey c. orange
a. black b. red c. orange
a. violet b. green c. yellow
Which of these steps (in shut-down procedure) shall be executed last?
Shut down of inert gas blower
Close the gas pressure control valve
Close the flue gas uptake
Open ventilation valve to atmosphere
The temperature control for a hot water system is very erratic with the temperature gradually rising and then suddenly falling and vice versa even though system demand is fairly constant. Which of the options given is the most likely cause of this problem?
Control air pressure supply is too low.
Control valve actuator diaphragm is ruptured.
Controller integral action reset time is too fast.
Control valve gland is over tightened.
What would indicate wastage to the main shaft of a ‘D’ ring?
Corrosion around the welded seam to the deck
Corrosion of the welded seam to the deck
Corrosion of its retaining sleeve
Pitting of the ‘D’ ring
The range of a transducer is 0-200 bar. The standard output signal is 4-20 mA. What is the output signal when the process value is 100 bar.
24 mA
4 mA
10 mA
12 mA
In a heat exchanger where seawater is used to cool fresh water, the seawater pressure should be maintained lower than the freshwater pressure to:
Minimize the load on the seawater pump
Eliminate scaling problems on seawater side
Reduce erosion
Prevent contamination if leaks are developed
Most maintenance and repair tasks carried out onboard ship require a permit to work which will include a full risk assessment. Where would an engine room rating find out about the precautions that are required as a result of the risk assessment for a particular task?
Code of Safe Working Practices (COSWP)
Ships Safety Management Manual (ISM Code procedures)
Chief Engineer’s standing orders.
Engine room log book.
The image shows an arrangement of electronic components which is often used for a particular reason. What is this type of ciruit usually called?
A zener barrier.
An amplifier
A rectifier
A measuring bridge
A consignment of steel drums containing IMDG Class 8 cargo are about to be loaded in the hold of a General Cargo vessel; a number of drums are leaking slightly, what action should be taken?
The cargo consignment not be loaded at present; the Chief Officer must be informed and make final decision if the cargo is to rejected
The cargo must be stowed under deck
The drums can still be loaded provided that they are only loaded on deck
The cargo cannot be rejected and must be loaded
On a Container vessel, what do the letters 'PP' mean within the IMDG Code?
Packaging
Pollutant
Marine Pollutant
Severe Marine Pollutant
What will the cadet find in the engine store?
He will find The Bosun in the engine store
He won't find anything in the engine store
He will find the port anchor winch in the engine store
He will find new brake bands in the engine store
On a RoRo vessel, what should be done first when cargo has shifted at sea on a RoRo vessel and re-lashing is not possible?
Take action to improve stability
Go Faster to outrun the problem
Alter course and/or speed to reduce the accelerations and prevent further damage
On the figure there are four (4) possible definitions of the term "AFT" shown. Which one is the correct one?
Aft is defined as B on the figure
Aft is defined as D on the figure
Aft is defined as C on the figure
Aft is defined as A on the figure
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 dangers are associated with the carriage of empty tank containers?
They may not declared as being empty when in fact they are not
They could easily collapse due to being empty
They may contain flammable cargo residue
They could explode if their vents are closed
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
How can the pressure be regulated during start up of a positive displacement pump such as a gear pump?
By throttling the discharge valve
By throttling the suction valve.
Positive displacement pumps operate at constant pressure and cannot be regulated.
Adjustment of the pressure relief valve to recirculate part of the flow.
When people jump into the water from a ship, what should they do?
Keep their arms down at their sides.
Grab the lifejacket near the shoulder.
Take off their lifejackets.
Take off their shoes.
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
What is the delivery pressure of a centrifugal pump dependent on?
The liquid-s density and delivery head.
The pipe resistance.
The net delivery heads.
The NPSH (Net positive suction head).
Why is it necessary to have routine testing of the cooling water?
To trace leakage in the cooling water system.
To detect the presence of contaminants in the water that may be injurious to the cooling system.
To ensure that the proper residuals of treatment chemicals, as specified, are maintained all time.
t is not necessary.
A bulk carrier is about to commence loading steel coils using ships cranes, what three important checks must be made?
Cabs cleaned and lighted, drivers regularly rested
Crane windows cleaned,cab heater on and no- smoking rule enforced
Crane controls tested, limit switches correctly set and SWL never to be exceeded
Planned maintenance completed, all paintwork in good condition and lighting checked
How frequently should the PA-system (Public Address) be tested?
Every week
Every year
Every day
Every second year
During tank washing operations on an oil tanker, it is a requirement that the atmosphere within the tank is maintained with an oxygen content of not more than 8% by volume, but which of the following conditions is also a requirement?
That a positive pressure is maintained
That the atmosphere within the tank is maintained at atmospheric pressure, ie open to atmosphere
That a minimum of 2.4 bar inert gas inlet pressure is maintained
That a negative pressure is maintained
What should be continuously monitored when carrying DRI cargoes?
Hydrogen emissions
Integrity of the inert gas blanket
Nitrogen emissions
Cargo temperatures
Which of the following is an artificial sweetener?
Caterin
Sugarin
Nutralin
Saccharin
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 lights displayed here indicate that this is one of two types of vessel. What are the two options?
A power-driven vessel engaged in towing, more than 50 metres in length, or less than 50 metres in length and showing a second masthead light, length of tow under 200 metres, seen head-on OR a power-driven vessel underway. Less than 50 metres in length and displaying the second all-round white masthead light, seen head-on.
A vessel engaged in fishing, restricted in her ability to manoeuvre, shooting nets OR a vessel engaged in towing, less than 50 metres in length, length of tow under 200 metres, towing vessel restricted in her ability to manoeuvre, seen head-on.
A power-driven vessel engaged in towing, less than 50 metres in length, length of tow under 200 metres, towing vessel and tow restricted in their ability to manoeuvre, seen head-on OR a power-driven vessel underway, more than 50 metres in length, or less than 50 metres in length and showing a second masthead light, restricted in her ability to manoeuvre, seen head-on.
A vessel engaged on pilotage duty, engaged in deploying or recovering a pilot, seen head-on or a power-driven vessel underway, lmore than 50 metres in length or less than 50 metres in length and showing the second masthead light, seen head-on.
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
What would you do if you saw a stevedore starting to lash a container whilst other containers were being stowed above it?
Tell him to wait until overhead containers have been stowed
Inform the stevedoring foreman
Tell him to hurry
Inform the duty officer
Why must draught marks be read on both port and starboard sides of a bulk vessel when accurate draughts are required
The vessel marks may be incorrectly drawn
The vessel may appear up right but often will be found to have a slight list when port and starboard marks are compared
The vessel may be trimmed by the head
The draught reading on one side of the vessel sufficient
How could your menus best contribute to reducing the number of dental problems amongst the ship's crew?
By ensuring that at least two portions of vegetables are available with every meal.
By limiting the use of sugar-rich foods and beverages and those containing high levels of starch.
By increasing the amount of red meat served on board.
By ensuring that a minimum of 1.5 grams of salt per person is included in the daily menu.
Which one of the following liquefied gas cargoes is considered as presenting a toxic hazard according to the IMO Gas Codes?
Butane.
Ethylene.
Propane.
Ammonia.
According to ISGOTT, which of the following indicates the approximate density ratio of undiluted gas, in relation to air, from a typical crude oil?
Twice that of the air.
0.8 times that of the air (assuming atmospheric pressure above 1000 mb).
1.8 times that of the air.
1.5 times that of the air.
Why do we use nickel-alloyed steel, stainless steel or aluminium in cargo tank construction on gas carriers designed for LNG and LEG?
Because these metals have a very low thermal expantion coefficient and do not burst of extreme low temperatures
Because these metals cost less than other metal
Because these metals have a high thermal expansion coefficient and do not burst of extream low temperatures
Because the weight on this metals are not so high than other metals
What is a proportional band
Any part of the total amplification
100/amplification
Amplification/10
Amplification/100
Training is required when new equipment is installed on board the ship. What kind of training should be provided and for whom?
Every crewmember is responsible for their own training. Safety Officer should be contacted if any questions.
No training is required for experienced seafarers
Theoretical and practical training should be provided for the head of department. Operation Manual for shall be available in crew mess room so that personnel involved in operation of the equipment can familiarise themselves with the new equipment.
Theoretical and practical training should be provided for all personell involved in operation of the new equipment
On most ro-ro passenger ships there is no requirement to carry out drills with the passengers. What is the most effective ways of informing embarking passengers about the emergency procedures?
Information on boarding cards, public announcement on departure, posters in public areas and cabins, safety video running continuously
Posters in public areas and cabins, safety video running continuously
Information from the crew
Safety video and folders in tax free shops
To which of the following are the Hague-Visby rules applicable?
Carriage of animals/livestock
Charter parties incorporating a Clause Paramount
Cargoes stated as being carried on deck
Contracts of carriage not evidenced by a bill of lading
You are going to enter a tank to lift out some sediments. What kind of permits need to be issued before entering?
Hot Work Permit and Cold Work Permit.
Enclosed Space Entry Permit and Cold Work Permit.
Enclosed Space Entry Permit and Hot Work Permit.
Enclosed Space Entry Permit only
We say the centrifugal pump cavitates when:?
When the liquid accelerates from the suction side.
When the NPSH is variable.
A reduction of the flow.
We have negative pressure on the inlet side of the pump.
Furniture in stairways and corridors shall be kept to a minimum on board passenger ships, why?
Escape routes must be clear of obstructions and also due to fire protection
It is not allowed to sit in stairways and corridors
Due to fire protection
Passengers will most probably sleep in stairways and corridors if they are furnished
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
What is Inert gas ?
It is a gas containing insufficient oxygen to support combustion of hydrocarbons
It is a gas containing only nitrogen
It is a gas containing less than 21 % by volume oxygen
It is a gas containing no oxygen
What problem is associated with the use of twistlocks?
Sliding of containers when a vessel is pitching or surging
Susceptibility to wear and tear
Failure during heavy weather
The mixed use of left and right-handed twistlocks on the same vessel
Compressed air for instrument and control purposes needs to be of high quality. In order to condition the air filter modules are usually fitted to remove the contaminants. If there is evidence of oil carry over to the final elements in the instrumentation air system what is the most likely cause?
The coalescer module is saturated and requires renewal.
The drier section of the module needs to be regenerated.
The air compressor piston rings need to be renewed.
The particle removal module is choked.
The pressure inlet to a pressure gauge is varied from zero to full scale and back to zero again. The output (indicating pressure) versus true pressure is shown in the diagr.The non - coincidence(mis - match) of loading and unloading curve is due to internal friction in the instrument. What do we call this phenomenon?
Dead band
Threshold
Hysteresis
Resolution
Why should only one set of ballast tanks be filled at any one time on a Bulk Carrier?
To ensure that bending moments do not become excessive
To prevent excessive lists developing
To ensure that free surfaces in ballast tanks do not become excessive during the ballasting operation
To keep the vessel trimmed by the stern
Liquefied gas is, by IMO, divided into different groups. What is the criterion for this division?
The boiling point, chemical bindings, toxicity and flammability.
The gas pressure.
The nitrogen and hydrocarbon content.
The hydrate formation.
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.
On a General Cargo ship all wire strops used for cargo work must be marked with what?
The diameter of the strop in millimetres (mm)
The SWL and certificate number
The name of the manufacturer
The stevedoring company
Is it possible to discharge a fully-refrigerated gas carrier if brake down on a discharge pump?
Fully-refrigerated gas carrier can be discharged by condensate the cargo to shore or another cargo tank or let it boil off
We can not discharge any gas carriers without pumps
Fully-refrigerated gas carrier can be discharged by pressurising the cargo tanks
Fully-refrigerated gas carrier can be discharged by using a spare discharge pump lowered down in the cargo tank
Which part of the magnetic compass error changes with a change in the course steered?
All of the suggested answers
Induced magnetism
Variation
Deviation
What gas checks must be made to the atmosphere in a general cargo ship deep tank prior to cleaning and after discharge of a cargo of vegetable oil?
The atmosphere must be checked for oxygen, methane gas and carbon dioxide
The atmosphere must be checked for oxygen levels, flammable gas and toxic gas
The atmosphere must be checked for oxygen, hydrogen and acid gas
The atmosphere must be checked for hydrogen sulphide, carbon monoxide and hydrogen gas
The emergency fire pump is in accordance with good seamanship and precautionary routines run and tested weekly. Routine checks and maintenance are normally carried out by dedicated personnel. To ensure safe and appropriate operation of the pump, would you consider it beneficial that the same dedicated personnel operate the pump in emergencies?
In case of accidents, it is important that a wide range of personnel must be permitted and trained to operate the pump.
Only senior engineers should operate the emergency pump.
To ensure safe operation of the emergency pump,only dedicated personnel must be permitted to operate the pump.
Only senior deck officers should operate the emergency pump.
Quick closing devices operable from upper deck outside the engine room, are provided for all fuel valves connected to the fuel tanks in the engine room.The function of the quick closing devices are checked being in functioning condition during Safety Equipment survey. Would it be advisable to have these safety functions frequently tested?
Checking every renewal of Safety Equipment Certificate (2 years) is sufficient.
Yes, the quick closing devices shall be tested and maintained frequently to ensure proper function in case of fire in the engine room.
No, if the quick closing devices are closed the engines will stop.
Checking once a year is sufficient.
How many 'thermal protective aids' are required to be carried on vessels with open lifeboats?
10 in each lifeboat
Each lifeboat should carry the same number of thermal protective aids as the number of persons it is designed to carry
One for each person on board who is not provided with an immersion suit
They are not required, providing the boat has a canvas canopy which can be rigged in cold weather
After checked for open airway, given the first two inflations and checked the pulse to make sure that the heart is beating, what is the rate of inflations given until natural breathing is restored ?
10 - 12 times per minute
25 - 27 times per minute
Doesn't matter how many times
12 - 16 times per minute
This online test consists of 90 random questions from CES 5.1 tests on a topic of your choice.