A. Rotary Kiln
B. Tunnel Kiln
C. Natural draft furnace
D. Batch furnace
Related Mcqs:
- Thermal efficiency of a limestone calcination rotary kiln may be around ______________ percent?
A. 20
B. 40
C. 65
D. 80 - The thermal efficiency of an air/fuel gas preheating recuperator may be as high as _____________ percent?
A. 50
B. 65
C. 85
D. 99 - Hearth furnaces are not used for____________________?
A. Roasting
B. Melting
C. Reheating
D. None of these - Reheating furnace (pusher type) is used for heating_____________________?
A. Ingots
B. Slabs
C. Steel coils
D. Steel sheets - Specific heating capacity of a furnace is expressed as_____________________?
A. Weight heated/hr
B. Weight heated/furnace volume
C. Weight heated/hr/furnace volume
D. None of these - Dampers are located__________________?
A. Before the I.D fan
B. After the I.D. fan
C. Near the top of the chimney
D. Anywhere after the I.D. fan - Which furnace employs an I.D. fan for the removal of flue gases from the furnace ?
A. Coke oven
B. Blast furnace stoves
C. Beehive coke oven
D. High pressure boiler - Heat transfer rate to the charge/stock in a furnace does not depend upon the________________?
A. Type of fuels viz. solid, liquid or gaseous
B. Flue gas temperature
C. Emissivity of refractory walls
D. Initial temperature of the charged stock - Which one shows the diagrammatic heat balance in a furnace ?
A. Sankey diagram
B. Cox chart
C. Ostwald chart
D. None of these - Which of the following is not an additive for flue gases from furnace to reduce its dewpoint ?
A. Ammonia
B. Fine dolomite
C. Alkaline powders
D. None of these
