131. An improved and fuel efficient version of the pusher type reheating furnace is the __________ furnace.
Walking beam
Shaft
Tunnel
Rotary hearth
✅ The correct answer is option A.
Furnace Technology MCQs
132. Blast furnace stoves are meant for heating
Air
Blast furnace gas
Steam
None of these
✅ The correct answer is option A.
133. Cement Kiln is a
Rotary Kiln
Tunnel Kiln
Natural draft furnace
Batch furnace
✅ The correct answer is option A.
134. Rate of heat release in a furnace, which is the measure of heat intensity is defined as
Kcal/hr/m³ combustion space
Kcal/m³ combustion space
Kcal/hr
None of these
✅ The correct answer is option A.
135. Higher furnace temperature can not be achieved by use of a lean fuel gas in the furnace by
Increasing the draft in the furnace
Preheating the fuel gas
Oxygen enrichment of combustion air
Preheating the combustion air
✅ The correct answer is option A.
136. Dampers are located
Before the I.D fan
After the I.fan
Near the top of the chimney
Anywhere after the I.fan
✅ The correct answer is option A.
137. An example of a periodic furnace is the
Blast furnace stoves
Blast furnace
Coke oven heating chamber
Rotary kilns
✅ The correct answer is option A.
138. In order to maintain an oxidising atmosphere in a furnace, it should have
More of excess air
Less of excess air
More of CO in flue gas
More of CO₂ in flue gas
✅ The correct answer is option A.
139. The method of Lobo and Evans is concerned with the calculation of the
Heat absorption in radiant section of a furnace
Heat transfer by forced convection in a reboiler
Heat transfer in vacuum condensers
Mass transfer co-efficient
✅ The correct answer is option A.
140. Pot furnace which is either regenerative or recupterative, is used in the manufacture of
Glass
Stainless steel
Potteries
Refractory bricks
✅ The correct answer is option A.