A. 350
B. 750
C. 1050
D. 1250
0
In reverberatory furnace, charge is heated mainly by__________________?
0
Which one shows the diagrammatic heat balance in a furnace ?
A. Conduction
B. Natural convection
C. Radiation of heat from the roof of the combustion chamber
D. None of these
0
_____________ atmosphere is maintained inside an iron blast furnace?
A. Sankey diagram
B. Cox chart
C. Ostwald chart
D. None of these
0
If the flame is produced under the hearth and then sweeps up into the heating chamber, this is called a/an ______________ furnace?
A. Oxidising
B. Reducing
C. Inert
D. Decarburising
0
Which of the following is the most important deterrents to an extended use of pulverised coal in boiler firing ?
A. Sidefired
B. Underfired
C. Covered
D. Recirculating
0
Large tonnage of refractory bricks are dried in a_____________________?
A. Ash disposal problem
B. Excessive fly ash discharge from the stack
C. Higher power consumption in its transportation
D. Erosion of induced draft fan blades
0
A refractory wall separating the stock and the source of heat is provided in a__________________?
A. Shaft furnace
B. Rotary hearth furnace
C. Tunnel kiln
D. Muffle furnace
0
Turndown ratio of a burner gives an idea of the ______________ in the furnace?
A. Updraft kiln
B. Muffle furnace
C. Continuous furnace
D. None of these
0
Which is a continuous furnace ?
A. Range of fuel firing rates
B. Volume of the combustion chamber
C. Maximum heat input rate only
D. Minimum heat input rate only
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