Auxiliary Machinery. Test 53 – Online Maritime Tests

What is the most important aspect of communication with the Bridge?

Executing orders from and issuing warnings to the bridge.
Operation of fire fighting and life saving equipment.
Ballasting operations, cargo hold bilge pumping.
Executing of orders from the bridge.

When taking over the engine room watch, what should you check on the oil fired boiler if this is in operation ?

Furnace temperature, uptake gas temperature and smoke indicator.
Feedwater temperature, fuel oil pressure, CO2 content of uptake gases and flame brightness.
Steam pressure, water level, flame brightness, cleanliness of the photocell glass plus fuel temperature and pressure.
Feedwater temperature, steam pressure, water level, fuel pressure and CO2 content of uptake gases.

If fuel is dripping from the water outlet of the purifier what could be the cause?

Discharge pump not functioning correctly.
Gravity ring is of the wrong size for the fuel being purified.
Purifier needs cleaning.
Delivery pump not functioning correctly.

If refrigerant gauges are calibrated in Absolute Corresponding Temperature, can these gauges be used for any refrigerant in any refrigerating system ?

Are calibrated for only one refrigerant.
Can be used for any refrigerant.
Can be used for Freon 12 or Freon 22 only.
Can be used for any refrigerant except AMMONIA.

In what kind of machinery would this type of gland packing never be used ?

Sea water or freshwater pumping equipment.
Fuel oil or Lubricating oil systems.
Refrigerating installations.
Steam valve spindles.

What is the shape of stern tube seals (forward and aft) ?

They are round in form and in one piece (O-ring type).
They are square in form and diagonally cut.
They are lip seals and in one piece.
They are flat gaskets between flanges.

Review Answers