NV C-1A Boilers Practice Questions - Nevada C-1A Boilers Contractor Examination Exam

Which fuel-oil grade is the usual distillate for automatic gun-type boiler burners?

No. 6 residual (bunker) oil that must be heated to pump. No. 2 distillate fuel oil. Gasoline stored in the same indoor tank. Crude oil taken directly from a well tank.

Correct Answer:

No. 2 distillate fuel oil.

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