Q. Overfire burning in a furnace is a phenomenon characterised by

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Q. If fuel and air are mixed ahead of the burner, it is called a/an __________ burner.

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Q. Neutral atmosphere is maintained in a/an __________ furnace.

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Q. The resistance furnace produces heat by the

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Q. Which of the following variables does not affect the furnace capacity ?

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Q. Unit of furnace loading is

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Q. In a furnace operation, which is not preheated ?

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Q. Operation of blast furnace stove is based on the principles of a __________ furnace.

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Q. In salt bath furnace, heat is transferred to the charge mainly by

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Q. In order to maintain an oxidising atmosphere in a furnace, it should have

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Q. Combustion of fuel in a furnace with oxygen enriched air results in higher

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Q. Reducing atmosphere is maintained in a

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Q. Presence of SO₂ in furnace gases attacks the ferrous metal by way of

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Q. Which of the following is not a recuperative furnace ?

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Q. Size of the combustion chamber of a furnace depends upon the

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Q. Reheating furnace (pusher type) is used for heating

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Q. The rate of scaling of furnace stock depends upon the

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Q. Main gas valve in a gaseous fuel burner is a __________ valve.

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Q. Artificial draught produced by a fan in the furnace can be controlled by the

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Q. Regenerators as compared to recuperators for the same duty

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