Motor Plants & Auxiliary Boilers USCG Question #1510 (Set 32)

The boiler shown in the illustration would be classed as __________. Illustration MO-0064

Official USCG Answer & Rule Citation

Correct Answer: Option A — single-pass, fire-tube, scotch marine

Scotch marine boilers are characterized by a cylindrical shell containing internal furnaces and fire-tubes. A single-pass configuration directs combustion gases through the tubes once before exiting to the uptakes.

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