Auxiliary Machinery. Test 53

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

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

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

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

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

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

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

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

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

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

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.
Furnace temperature, uptake gas temperature and smoke indicator.
Feedwater temperature, fuel oil pressure, CO2 content of uptake gases and flame brightness.

Review Answers

Auxiliary Machinery. Test 53

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