Online-Test: Test online CES 5.1 for MASTER / Ch-Officer, Oil tanker vessel

*A bulkhead of the "A" class must:

*What is the term used to designate the work that may cause heat, sparks or flames and that cannot be performed if specific compulsory precautions are not taken in places where nearby flammable products could be present?

The free volume of carbon dioxide (CO2) of a fixed gas fire-extinguishing system shall be calculated at

How does low expansion foam act as an extinguishing agent when dealing with oil fires?

A « OSC » is :

To what pressure will a new length of cargo hose be tested by a manufacturer prior to its supply to a vessel for service onboard a chemical tanker?

A Category "B" Chemical Cargo which has a melting point of more than 15° C. can be carried:

Prior to entering service on a vessel in foreign trade for the first time you are required to have a health certificate not older than?

A strain occurs when a muscle or group of muscles is over- stretched and possibly torn, by violent or sudden movement. Strain can be caused by lifting heavy weights incorrectly. The treatment of strain may be remembered as the word RICE.What is RICE an abbreviation for?

Which of the following is NOT required to be in the oil transfer procedures?

Any ship of 10.000 tons gross tonnage and above shall be fitted with oily-water separating equipment for the control of machinery space bilges.What kind of equipment is required in this connection?

When cross-flooding arrangements to correct unsymmetrical flooding and excessive heel angels in damaged condition are installed in passenger ships, what is the maximum time allowed for equalization?

What is one of the methods used by an aircraft to attract a vessel's attention for participation in a rescue operation?

You are underway on a power driven vessel in open water when you see another power driven vessel approximately five miles straight ahead on an opposite course. What action do you take?

The positions of the ship provided by the GPS should always be confirmed by other means, when possible. Which of the following suggested methods would be the most accurate?

" On area A1 the function "" Transmission and reception of signals for locating "" is mainly based on:"

The rule for having a radio transmitter license is internationally laid down in:

Vessels communicating with each other by mariphone, work:

Which class of emission is used for MF radio telephony transmissions ?

Define the class of emission H3E :

Which of the following is the correct minimum carriage requirement for a ship of more than 300 gross tons and operating in area A4:

Which one of the listed requirements regarding life-jackets corresponds to present SOLAS regulations ? A life-jacket shall be so constructed that:

Which item among those below is included in the normal equipment of every lifeboat ?

An enclosed lifeboat is fitted with a self-contained air support system. With the engine running, what is the minimum period of time the air should remain safe and breathable?

What is most important for crew members when preparing for emergencies?

*Which one of the following items has to be included in an abandon ship drill?

Which of the following items shall be included in an "abandon ship"-drill?

The training manual shall contain instructions and information in easily understood terms and illustrated wherever possible. Which of the following objects do not have to be explained in detail in the manual according to present regulations?

Feed check valves for main and auxilliary purposes are normally of the double shut off type, as shown in the diagram. What is the main function of the non-return valve?

What effect would turbulent fluid flow through a heat exchanger have on the efficiency of the heat transfer?

In a large, 2 stroke, main diesel engine cylinder lubricating oil is supplied directly through lubrication points cut into the cylinder liner. At what point during the cycle should the supply normally occur.

Cross-flooding fittings shall be operable from:

Fast rescue boats shall be capable of carrying:

Which statement about the use of profiling onboard a ship is true?

What could result from carrying coal with a high sulphur content on a Bulk Carrier?

After washing cargo holds why are cargo residues often found on the tank top when hatches are opened at the load port?

Generators work on the principle of electromagnetic induction. The internal e.m.f. generated in the phase windings of an a.c. generator is controlled by:

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?

Use of …… and …… is strictly prohibited onthe ro-ro deck, signs shall be displayed

For how long must you save the printouts from the ODME?

Commonly used on an oil tanker, what does an "Explosimeter" measure?

A vessel with a large transverse GM will have which of the following rolling periods?

During bilge pumping operations the pump suction gauge indicates a high vacuum. What is the most likely cause of the high vacuum reading?

Which of the following is a summary of the tank cleaning requirements for a category "X" substance on a chemical tanker constructed after 1st January 2007?

What type of heat exchanger is shown?

You enter a High Voltage switch room and find a person apparently unconscious. Which of the following should be done?

What is the main purpose of the superheater vent valve on a high pressure steam boiler?

A ro-ro unit weighing 2mt is to be loaded in the fore and aft direction and lashed by belts of SWL 0.6mt. How many lashing belts should be used to secure the unit?

What name is given to the short, intial wash given to tanks that have just contained certain particularly hazxardous cargoes before the ship leaves the unloading port and where the washings are landed to shore or to a slop barge?

Some process control systems may several inputs and controlled variables. In this context what is meant by split-range?

Which of the following forms of food poisoning is particularly associated with outbreaks on cruise ships?

How will continuous low load operation influence the time between overhauls, tbo, for the cylinder covers and associated valves of a 4-stroke diesel engine?

A centrifugal pump is to be reassembled following overhaul and it is discovered that there are no spare gaskets for the pump housing. From the options given select the best alternative material to make a gasket from.

Who is responsible for supervising stevedores during cargo operations?

On a RoRo vessel, where is the best place to find information on loading ramp limitations?

What determines the size of the "sump" in a chemical tanker's cargo tank?

On a Container vessel, what should be done if a container with a damaged corner post is being loaded?

Only search vehicle compartments where you suspect objects may be hidden.

What does ‘wedging’ achieve in side-rolling hatch covers?

A combustible gas indicator of the catalytic filament type is used to check the atmosphere in an enclosed space onboard ship. When taking readings in a fuel tank which has been emptied for cleaning the meter reading initially rises and then falls back to zero. What is the likely defect, if any, in the instrument when this type of behaviour is displayed?

On routine daily inspection you notice that there is a light arcing between an alternator's carbon brushes and rotor sliprings, with alternator operating at 70% load. Should you:

A steam generating tube in a boiler is found to be badly sagged but not ruptured. Select, from the options given, the most suitable action to be followed in order to operate the boiler.

How should steel wire rod coils be stowed?

Most fuel oil separtors working on the centrifuge principle have an automatic start up and sludging facility. Which of the following actions would you expect to occur first during the start up sequence?

"Your ship security plan must include procedures for responding to security threats, auditing security activities and interfacing with the port facility."

On a RoRo vessel, what should be done if a non dangerous goods ro-ro unit is found stowed in an incorrect location?

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?

A 250V contactor has been fitted to a 220V supply. Which of the following symptoms might be observed?

A mechanical seal, consisting of carbon and ceramic seal rings, is to be fitted to a cetrifugal pump shaft. What is the most likely result of not being extremely carefull when fitting this type of seal?

You are going to serve boiled potatoes with the evening meal at 18:00 hours. At what time should you have the potatoes ready?

What should be continuously monitored when carrying DRI cargoes?

Is it required to have supplementary emergency lighting on board passenger ships?

The effective stability of a tug, when assisting a vessel to manoeuvre, can be decreased by hydrodynamic interaction with the ship it is assisting. Where is the most dangerous position of the tug relative to the ship, for this adverse affect to be found?

What is the main effect on lubricating oil of operating for long periods at excessively high temperature?

Foodstuffs which have not been cooked or prepared in any way may be described as which of the following?

Which of the following options may be used as a brief summary of how to safely make high voltage equipment accessible?

A water heating system with automatic temperature control uses steam as the heating medium and the temperature is controlled by a pneumatically operated valve? What would be an acceptable start up procedure of the system from cold state?

Where are the maximum Shearing Forces likely to occur on an oil tanker?

On a container vessel what action should be taken if a tank container of liquid ammonia is engulfed in fire

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?

What should be the first action to be taken in the event of the water level disappearing out of the boiler water level gauge glass?

According to regulations cranes and other lifting appliances onboard should, at regular intervals, be examined by ship's personnel and the result recorded in Register of Ship's Lifting Appliances and Cargo Handling Gear. How often should such examinations take place?

You have just completed discharge of a cargo of Iso-Butanol and are preparing for tank cleaning. The pumpman is going round the deck checking the cargo pump cofferdams for any leakage of hydraulic oil or cargo. What term is applied to this procedure?

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?

Why do we have to make sure that the plate pack is compressed to the right measurement A, after insertion of plates?

What effect would increase of sea temperature have on your amount of cargo onboard?

A common expression is for example 2 across. What does this mean.