On a vessel fitted with a coil-type, forced-circulation, water-tube, oil-fired auxiliary boiler, what is the most practical way of determining if the inside surface of the coil is excessively scaled with hard scale deposits?

Question

Accepted Answer

Monitoring the circulating pump pressures.

Answer

Measuring the coil inside diameter.

Answer

Monitoring the feed pump pressures.

Answer

Performing a visual inspection.

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