Результаты прохождения теста
In respect of washings from the cargo area of an oil tanker, what is the maximum instantaneous rate of oil that can be pumped into the sea when a vessel is outside a special area, proceeding en route, has in operation a monitoring and control system for the discharge of oil and is located more than 50 nautical miles from the nearest land?:
The frequency 121,5 MHz is used for:
In the type of fluorescent lamp system shown in the illustration, the role of the starter is to perform which of the following?:
There is requirement in MARPOL for the slop tank capacity of oil tankers. What is the requirement for SBT tankers?:
What is the main responsibility of a bridge lookout at night?:
You have just joined a chemical tanker. Where would you find a description of the ship’s cargo handling equipment, details on the ship’s cargo unloading procedures and tank stripping and details on procedures relating to the cleaning of cargo tanks, the discharge of residues, ballasting and deballasting?:
Why shall a duly qualified officer supervise any potential polluting operation?:
What symptom would you think shows that the freon filter drier has become blocked?:
Are there any restrictions for transit of the Suez canal?:
If the heat transfer capacity in a heat exchanger is dropping, the following action should be taken:
If a seaman has to walk across a stow of cartons containing perishable foodstuffs what should he do to minimise the risk of damage to the contents? Select the most appropriate option from those given.:
Which of the below statements characterizes the most significant differences between a water-tube boiler and a fire-tube boiler during operation?:
Between a complete removal and a renewing of floor polish what can you do to maintain a PVC floor surface?:
What is the fog signal for a vessel which is engaged in towing?:
During crude oil washing of No: 1C tank the duty deck officer reports that the oxygen reading in the tank is 9 %. What should you do?:
On a container vessel, where should a mid-bay guide be positioned?:
When discussing the properties of an oil cargo, what is the “wax content”?:
Diodes are widely used in rectification, or the conversion of alternating current to direct current. The sinusoidal input voltage V (in) is applied to the circuit shown. Which of the output voltages is correct?:
What is polymerisation?:
You are in an area of restricted visibility and hear this signal. It is repeated at two minute intervals. What does it indicate?:
Other than the official log book what other publications must be carried on board of a vessel?:
On a general cargo ship, where would the fire hydrants be located?:
If oil out of the bowl casing drain of a solids ejecting separator what is the most likely problem?:
When will a hatch cover cross-joint wedge need replacement?:
Searchlights must be provided for night navigation in the Suez Canal. Which of the listed requirements are correct?:
Why are all RoRo passengers ships divided into vertical “zones”?:
You are the Officer in Charge during the loading of a tanker at a terminal in the Persian Gulf. The deck watchman reports “There is a lot of oil on the water to starboard”. What should be your FIRST action?:
A drip tray containing oil is on fire. The only fire fighting equipment available is water hose with spray jet/spray nozzle. How, if at all, should you attempt to put out this fire using water?:
On board a DSC-call is to be made in case of an OBS. Choose the category:
Which type of compressors is used as cargo compressors onboard gas carriers?:
When there is doubt about the freshness of the atmosphere in enclosed or confined spaces, what actions should be taken?:
Reduced capacity accompanied by vibration and noise at the suction of a centrifugal pump results from the action of vapor pockets in the fluid being pumped caused by:
You are in open water and clear conditions. You are approaching the pilot station when you hear this signal from a vessel ahead of you. What does it signify?:
Which of the following items shall be included in an “abandon ship”-drill?:
What is the main vitamin found in flour and grain products?:
What is a steering wheel?:
This circuit consists of two resistances, R1 = 6 ohm and R2 = 12 ohm, connected in series. Calculate the equivalent resistance R(S) of the two resistances.:
In the case when the temperature of the ambient air is equal to 10 °C and the wind is blowing at a speed of 10 m/sec the shipwrecked person must consider that the effect of air on his body is equivalent to that of an air whose temperature would be approximately:
What are the requirements regarding slop tank capacity on combination carriers with smooth walls (bulkheads)?:
There are many types of pumps fitted onboard ship which an engine room rating may be required to assist with the maintenance of. Which type of pump is shown in the illustration?:
Which of the following is a chemical commonly added to cleaning substances used to clean galley areas?:
On a Container vessel, what determines how containers should be lashed?:
Which of this information must be included in a piracy attack alert?:
During mooring operations which is the safe place to be in?:
Which is the preferred method for starting an air conditioning refrigeration compressor which has been shut down for a period of time?:
What is the correct name of the tool shown in the sketch?:
What is the correct chemical name for Caustic Soda in liquid form?:
What is the minimum capacity of a ventilation system protecting cargo spaces, other than special category spaces, intended for carriage of motor vehicles with fuel in their thanks for their own propulsion in a ship carrying no more than 36 passengers or in a cargo ship?:
What contributes most to rust formation on vehicles/Ro-Ro units?:
When you are taking an “ullage” on a cargo tank on an oil tanker, what are you actually doing?:
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?:
What is the minimum capacity of the portable tank of a portable foam applicator?:
Which is the “Fairlead”, in the figure?:
At what calendar interval must lifting appliances on board a vessel be suitably tested by a competent person?:
A coated tank holds 400 tons of sea water when filled. How many tons of liquid of liter weight 0,9300 will it hold when filled to 90 % capacity?:
Part of the outer surface of a refrigeration compressor crankcase and the refrigerant return line near the compressor ice up heavily during normal operation. Which of the options given is the most likely cause of this problem?:
What does wet washing mean?:
This circuit consists of two capacitors, C(1) = 6 μF and C(2) = 12 μF, in series. Calculate the equivalent C(S) of the two capacitors.:
What is the MARPOL definition of a “high-viscosity substance”?:
What is the most likely reason for vibration and noise at the suction side of a centrifugal pump when it is running?:
Which is the “Windlass”, in the figure?:
With two alternators operating in parallel at 75 % load capacity, one trips without any warning. What is the first action that should be taken?:
What are the compressors fitted as part of the cargo system onboard LNG carriers normally used for?:
The Master is responsible that all crew participate in monthly emergency drills. If 25 % of the crew (or more) has not participated in such drill during the last month, what is the time limit to conduct such a drill after the vessel has left a port?:
By reduced transmitting power is meant in VHF a power between:
During duplex mode you are able to:
What is the purpose of the “Mud Box” on a tanker?:
High Voltage (HV) cables are smaller than low voltage cables for a given power rating. Why is this?:
Emergency instructions in appropriate languages shall be posted in passenger cabins. Which information shall as a minimum be included in the emergency instructions?:
What is understood by the term “take the helm”?:
Enthalpy is an expression of how much energy is tied up in one kilo of a substance. A substance’s total energy consists of:
What is the weather associated with being in the centre of an Anticyclone (a region of High Pressure)?:
When lashing general cargoes why are short lashings preferred to long ones?:
According to SOLAS Regulation all dedicated seawater ballast tanks on oil tankers shall have an efficient corrosion prevention system such as hard protective coatings or equivalent. With regard to coatings do SOLAS set any requirement to colour?:
On a RoRo vessel carrying no more than 36 passengers, what is the minimum capacity of the ventilation system protecting standard cargo spaces intended for carriage of motor vehicles with fuel in their tanks for their own propulsion.:
The Training Manual shall contain instructions and information on the life-saving appliances and the best method of survival. The training manual shall contain detailed explanations of crew duties in relation to emergency situations. Which of the following tasks or duties shall be included in the manual according to present regulations?:
Who shall carry out the detailed preliminary supervision of maritime service of seafarers before the commencement of service?:
If oil flows out of the bowl casing drain of a solids ejecting separator what is the most likely problem?:
The abbreviation “NPSH” is often seen in connection with the efficiency of cargo pumps on oil tankers. What does this abbreviation stand for?:
To make a “call-request” one should: