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The fire tubes in a Cochran boiler usually have _________ diameter.

A. 6.25 mm

B. 62.5 mm

C. 72.5 mm

D. 92.5 mm

Please do not use chat terms. Example: avoid using "grt" instead of "great".

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  16. A device used to put off fire in the furnace of the boiler when the level of water in the boiler falls…
  17. Which of the following is a water tube boiler?
  18. A vessel into which the steam is exhausted and condensed after doing work in an engine cylinder or turbine…
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  28. The actual power generated in the engine cylinder is called
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