Auxiliary Machinery. Test 82 – Online Maritime Tests

The time interval for automatic sludge discharge from purifiers must be chosen correctly. In general the more frequent the interval the better. Howeve too short intervals are inefficient and too long intervals _____

will result in difficult desludging due to adhesion of sludge.
may result in water seal depletion.
may result in overflowing of the purifier due to clogging with dirt.
will also give bad efficiency.

When taking over the engine room watch you should ensure that the intermediate shaft _____

is at engine room temperature.
is vibration free.
is polished and that the polishing mats are in place.
is adequately greased.

Which action of the steering gear pumps is feasible ?

Pressure to cylinders A and C, return oil from B and D.
Pressure to cylinder A, return oil from D.
Pressure to cylinders A and B, return oil from C and D.
Pressure to cylinders A and D , return oil from B and C.

Here is a list of activities which amongst other things you will have to perform when starting a fresh water generator. Which list is in the correct order ?

Start fresh water pump, start ejector pump, supply cooling water to condenser and fresh water to the evaporator.
Supply coolwater to condenser, supply fresh water to evaporator, start fresh water pump, start ejector pump.
Start ejector pump, supply cooling water to the condenser, supply fresh water to the evaporator, start fresh water pump.
Supply fresh water to evaporator, start fresh water pump, start ejector pump, supply coolwater to condenser.

When taking over the engine room watch, you should check that the engine room supply fans _____

are well greased.
are not overheating.
are running vibration and noise free.
are covered by dirt screens.

When taking over the engine room watch you should ensure that the intermediate shaft bearings are _____

not hot or making any unusual noise and that the cooling water valve is open.
not overheating, not leaking oil and that no white metal is spotted.
at the desired temperature, that adequate oil is flowing and that cooling water supply is on.
not running hot, the cooling water is not blocked and the oil is not dirty.

When taking over the engine room watch you should check that the engine room fan's intake grids or intake filters _____

are secured by wire mesh.
are cleaned with oil and grease remover.
are free of dirt or obstacles.
are properly bolted in place.

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