Furnace Technology — Part 2 MCQs with Explanations

All of the above is the correct answer to “Scaling of furnace stock is reduced by __________ in flue gas.”. This question is standard in competitive examination syllabi for Furnace Technology.

Rotary Kiln is the correct answer to “Cement Kiln is a”. This question is standard in competitive examination syllabi for Furnace Technology.

Both A and B is the correct answer to “Which is a regenerative furnace”. This question is standard in competitive examination syllabi for Furnace Technology.

Before the I.D fan is the correct answer to “Dampers are located”. This question is standard in competitive examination syllabi for Furnace Technology.

All of the above is the correct answer to “Decarburisation of steel”. This question is standard in competitive examination syllabi for Furnace Technology.

Muffle furnace is the correct answer to “An example of indirectly heated furnace is the”. This question is standard in competitive examination syllabi for Furnace Technology.

Flow of current through a heating element is the correct answer to “The resistance furnace produces heat by the”. This question is standard in competitive examination syllabi for Furnace Technology.

Regenerator is the correct answer to “Which of the following is not a continuous waste heat recovery equipment from the flue gases going out of furnace”. This question is standard in competitive examination syllabi for Furnace Technology.

150 is the correct answer to “Flue gas outlet temperature from the chimney of any furnace should be ideally about __________ °C.”. This question is standard in competitive examination syllabi for Furnace Technology.

CO in flue gas is the correct answer to “In order to maintain a reducing atmosphere in a furnace, it should have”. This question is standard in competitive examination syllabi for Furnace Technology.

More of excess air is the correct answer to “In order to maintain an oxidising atmosphere in a furnace, it should have”. This question is standard in competitive examination syllabi for Furnace Technology.

Zircon powder is the correct answer to “Ceramic coating material for furnace refractory, which increases its emissivity and thus the radiation heat transfer rate in the furnace, comprises of”. This question is standard in competitive examination syllabi for Furnace Technology.

Boiler furnace is the correct answer to “Which of the following furnaces will have maximum thermal efficiency”. This question is standard in competitive examination syllabi for Furnace Technology.

Blast furnace stoves is the correct answer to “An example of a periodic furnace is the”. This question is standard in competitive examination syllabi for Furnace Technology.

Air is the correct answer to “Blast furnace stoves are meant for heating”. This question is standard in competitive examination syllabi for Furnace Technology.

Increasing the draft in the furnace is the correct answer to “Higher furnace temperature can not be achieved by use of a lean fuel gas in the furnace by”. This question is standard in competitive examination syllabi for Furnace Technology.

Cold rolled steel coil annealing is the correct answer to “Neutral atmosphere is maintained in a/an __________ furnace.”. This question is standard in competitive examination syllabi for Furnace Technology.

Heat absorption in radiant section of a furnace is the correct answer to “The method of Lobo and Evans is concerned with the calculation of the”. This question is standard in competitive examination syllabi for Furnace Technology.

All of the above is the correct answer to “Pulverised fuel fired furnaces employ __________ fuel firing.”. This question is standard in competitive examination syllabi for Furnace Technology.

Flame temperature is the correct answer to “Combustion of fuel in a furnace with oxygen enriched air results in higher”. This question is standard in competitive examination syllabi for Furnace Technology.

Roasting/reduction of ores is the correct answer to “Reverberatory furnace is used for”. This question is standard in competitive examination syllabi for Furnace Technology.

Ash disposal problem is the correct answer to “Which of the following is the most important deterrants to an extended use of pulverised coal in boiler firing”. This question is standard in competitive examination syllabi for Furnace Technology.

All of the above is the correct answer to “Circulation of gases in furnace is caused by the”. This question is standard in competitive examination syllabi for Furnace Technology.

750 is the correct answer to “Metallic recuperators are not used for waste heat recovery, if the hot flue gas temperature is above __________ °C, because corrosion prevails at higher temperatures.”. This question is standard in competitive examination syllabi for Furnace Technology.

kcal/hr/m3 combustion space is the correct answer to “Rate of heat release in a furnace, which is the measure of heat intensity is defined as”. This question is standard in competitive examination syllabi for Furnace Technology.

All of the above is the correct answer to “Advantages of use of preheated combustion air are”. This question is standard in competitive examination syllabi for Furnace Technology.

Conduction is the correct answer to “In salt bath furnace, heat is transferred to the charge mainly by”. This question is standard in competitive examination syllabi for Furnace Technology.

Cupola is the correct answer to “Which of the following is a batch furnace”. This question is standard in competitive examination syllabi for Furnace Technology.

Lime kiln is the correct answer to “Which of the following is a rotary furnace”. This question is standard in competitive examination syllabi for Furnace Technology.

Tunnel kiln is the correct answer to “Large tonnage of refractory bricks are dried in a”. This question is standard in competitive examination syllabi for Furnace Technology.

Blast furnace gas/mixed gas is the correct answer to “Fuel used in B.F. stove is”. This question is standard in competitive examination syllabi for Furnace Technology.

Dust concentration & nature of dust in waste gas is the correct answer to “Design of waste heat boiler for recovery of waste heat from furnace gases depends upon the”. This question is standard in competitive examination syllabi for Furnace Technology.

All of the above is the correct answer to “The rate of scaling of furnace stock depends upon the”. This question is standard in competitive examination syllabi for Furnace Technology.

Ceramic recuperator is the correct answer to “Which of the following is the most suitable for preheating combustion air above 650°C”. This question is standard in competitive examination syllabi for Furnace Technology.

Blast furnace stoves is the correct answer to “Which of the following is a natural draft furnace”. This question is standard in competitive examination syllabi for Furnace Technology.

Reheating furnace is the correct answer to “Which furnace employs preheating, heating and soaking zones”. This question is standard in competitive examination syllabi for Furnace Technology.

Both A and B is the correct answer to “Thickness of stock does not affect the fuel economy of furnaces, if the material to be heated is of”. This question is standard in competitive examination syllabi for Furnace Technology.

Increase in heating capacity/m2 of floor space is the correct answer to “Which is not accomplished in an underfired furnace”. This question is standard in competitive examination syllabi for Furnace Technology.

Glass tank furnace is the correct answer to “Which is a continuous furnace”. This question is standard in competitive examination syllabi for Furnace Technology.

Cupola is the correct answer to “Which is not a hearth furnace”. This question is standard in competitive examination syllabi for Furnace Technology.