Auxiliary Machinery. Test 47 – Online Maritime Tests

Which main air compressor is normally used to top up the main air bottles ?

Main air compressor No 1 or No 2.
Main air compressor No 1 and No 2.
Main air compressor No 1.
Main air compressor No 2.

When taking over the engine room watch, what should you check on the heavy fuel oil daily and settling tanks in addition to the supply capacity ?

Air supply to the quick closing valves, the tank vent screens, the remote or distance gauging system.
Compare the remote gauging system with tape sounding readings, drain the moisture off.
Verify the temperatures, check the tank vent screens, unclog the distance reading system.
The tank temperatures, drain the collected water off and verify if the quantity of water is normal.

If the stand-by indicating light is energised on the control panel of this boiler burner, what does it indicate?

That the boiler is ready to be fired and no alarm conditions exist.
That an alarm condition extists.
That the fuel is circulating and at the temperature ready to fire.
That the pilot burner is in operation.

In a split, reduced steam manifold, one manifold of pressure 7.0 bar, the other 3.0 bar. From which manifold are the returns taken direct to the hotwell?

Neither.
From the 3.0 bar manifold.
From either the 7.0 bar or the 3.0 bar manifold.
From the 7.0 bar manifold.

What slows the rudder movement when the requested position is reached?

The hunting gear feedback signal.
The steering wheel transmitter.
The rudder telemotor control.
The rudder control receiver unit.

When taking over the engine room watch, what should you check on all engine room fresh water expansion tanks?

That the automatic filling or float systems are in good operational order.
That the levels of the tanks are normal and if any abnormal additions during previous watches.
That the temperatures are normal and the tanks are not steaming up.
That the chemical concentration of the water is correct.

When taking over the engine room watch, what should you check concerning the hot well of the condensate/feedwater system ?

Whether correct level, no excess of make-up water being supplied and that there is no steaming up.
Whether the cooling water supply is sufficient and that the level is satisfactory.
Whether the heating coil is in operation and that the automatic filling valve is working to satisfaction.
Whether the filters are cleaned and that the chemical concentration of the water is correct.

When taking over the engine room watch, what should you verify concerning the sea cooling water supply system ?

The cleanliness of the filters and the correct sea chests are in operation.
The sea water temperature and the sea water pressure.
The cooling water system line setting and the sea water pressures to the different components.
The suction pressure and the discharge pressures.

Is capacity control feasable on this compressor ? If yes, how would it be arranged ?

Yes, capacity control valve acts on the unloader by suction pressure.
Yes, by throttling the suction valve.
No, capacity control system cannot be fitted.
Yes, by setting the expansion valve.

When taking over the engine room watch, what should you check concerning the operational lubricating oil purifier ?

Check whether throughput is minimum, check the overflow pipe, check whether the alarm is activated.
Check the Ferodo coupling, the bearing temperatures, the inlet temperature and the back pressure.
Check the setting of the timers, check the inlet temperature, the back pressure, the bearing temperatures.
Check whether throughput is on maximum, check the water seal, check the overflow/water flow off pipe, check inlet temperature and back pressure.

Review Answers