Related Questions

Calcination of limestone is not done in a __________ kiln for producing lime.
A Vertical shaft
B Rotary
C Fluidised bed
D Fixed bed
Calcination of limestone to produce lime is done in a __________ kiln.
A Tunnel
B Rotary
C Vertical shaft
D Both B and C
Rotary kilns meant for calcination of limestone are lined with chrome magnesite in __________ zone.
A Preheating
B Cooling
C Burning
D All of the above
How much temperature is maintained during quicklime manufacture in the calcination zone of the vertical shaft kiln?
A 500°C
B 750°C
C 1000°C
D 1500°C
Which of the following is used for calcination of limestone and dolomite in industrial practice?
A Fluidised bed reactor
B Moving bed reactor
C Fixed bed reactor
D None of these
__________ bricks are used in the burning zone of a cement rotary kiln.
A High alumina
B Fireclay
C Thoria
D Silicon carbide
Rotary lime kiln is an example of a/an __________ system.
A Closed
B Open
C Isolated
D Non-thermodynamic
Rotary kiln is not involved in the production of
A Cement
B Lime from limestone
C Slaked lime from quick lime
D None of these
Minimum thermal efficiency of a steam boiler may be around __________ percent
A 25
B 45
C 65
D 20
Thermal efficiency of an internal combustion engine is around __________ percent.
A 8
B 35
C 65
D 80

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