Oil Tankers. Test 12

Which of the following requirements to inert gas system for oil cargo tanks do not correspond to present regulations? (SOLAS II-2/62.2)

Eliminate the need for air to enter the tank during normal operation (gas-freeing excepted)
Keep a low pressure in the tanks at all times at sea and in port (periods of gas-freeing excepted)
Maintaining the atmosphere in any part of the tank within an oxygen content not exceeding 8% by volume
Inert empty cargo tanks to a level at which combustion cannot be supported

Which group of basic protection devices are fitted on the scrubber tower's sea cooling water supply system?

Alarms for high water level, high flow, high water pressure and high sea water temperature.
Alarms for high water level, low flow, low water pressure and pump failure.
Alarms for high water level, pump failure, high sea water temperature and low gas pressure.
Alarms for high water level, low water level, pump failure and low gas pressure.

How is cooling / cleaning water supplied to the inert gas scrubber tower?

By the main sea water pumps
By the deck seal sea water pump
By the cargo condenser pump
By the scrubber sea water pump

In an inert gas system audible and visible alarms shall be provided to indicate faulty conditions in the installation. Which of the following conditions do not activate the alarms? (SOLAS II-2/62.19.1)

High air pressure in water seal
High gas temperature
High water level in the flue gas scrubber
High gas pressure

What ensures that no sea water droplets are carried with the inert gas while the gas is washed and cooled in the scrubber tower?

The demister units
The regenerator
The centrifugal traps
The gas dryer unit

The master onboard a VLCC of 280,000 dwt has received a telex from the cargo terminal asking if the SPM-moorings are according to the OCIMF standard. What fitting must you have in order to comply?

One smith-type bracket with centre bow fairlead. capacity 150 tons.
One tongue-type/hinged bowstopper centre bow closed fairlead. Capacity 200 tons.
Two tongue-type/hinged bowstopper with centre bow closed fairlead. Capacity 200 tons.
Two tongue-type/hinged bowstoppers with separate closed fairleads. Capacity 200 tons.

Which of the following requirements to fixed foam systems for cargo deck area on tankers do not correspond to present regulations? (SOLAS II-2/61)

Application throw in still air condition shall not be less than 15 m
The number of foam applicators shall not be less than four
Sufficient foam concentrate shall be supplied to ensure at least one hour of foam generation
The capacity of any foam applicator shall not be less than 400 l per minute

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Oil Tankers. Test 12

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