Auxiliary Machinery. Test 24 – Online Maritime Tests

In a fuel oil separator liquid flows out through bowl casing drain and/or sludge outlet. What is the reason to this?

Seal ring in sliding bowl bottom defective.
Sludge discharge or water draining in progress.
Strainer in operating water high-pressure side, clogged or water pressure too low.
Any of the others.

What is the reason to too high pressure in the fuel oil separator oil outlet line?

Low fuel oil temperature.
Valve in the outlet line partly closed.
Broken water seal.
Oil feed pumps stopped

What may be the reason to an unsatisfactory separation result for a fuel oil separator of ALCAP type?

Sludge deposits in operating system.
Broken water seal.
Low level in the fuel oil settling tank.
Throughput too high.

The boiler have been shut down completely for inspection and repair. You have finished work and are going to start firing the boiler. What is the correct procedure for heating a boiler from cold?

Start the firing on minimum rate and continuously fire until boiler is up to pressure.
Start the firing on minimum rate and alternate with maximum rate continuously firing until the boiler is up to pressure.
Start with intermittent firing, using small firing periods and long intervals gradually building up to longer firing periods and shorter intervals.
Start the firing on maximum rate and raise the pressure in as short a period as possible, to save energy.

Too low oil flow in the fuel oil separator (ALCAP) oil outlet line is caused by:

Low fuel oil temperature.
Bowl opens unintentionally during operation.
The main engine is running slowly.
Abnormal water content in the oil.

Review Answers