Related Questions

Bauxite calcining rotary kilns are lined with __________ bricks.
A Fireclay
B Carbon
C 85% alumina
D Corundum
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
Rotary kilns in cement industry are lined with____bricks.
A Fireclay
B Silica
C Lead
D High alumina & high magnesia
Tunnel kilns are usually used for
A Roasting of pyrites
B Drying/tempering of refractories
C Reheating of slabs
D Melting of glass
Because of its very high refractoriness of the order of __________ °C, silicon carbide refractories are used in zinc smelting furnace, muffle furnace and for supporting the wares in tunnel kilns.
A 1800
B 2200
C 2400
D 2700
The type of rotary compressor used in aeroplanes, is of
A Centrifugal type
B Axial flow type
C Radial flow type
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 compressors are used for delivering
A Small quantities of air at high pressures
B Large quantities of air at high pressures
C Small quantities of air at low pressures
D Large quantities of air at low pressures
The type of rotary compressor used in gas turbines, is of
A Centrifugal type
B Axial flow type
C Radial flow type
D None of these
The floating position of the holding fixture in a rotary transfer device is used to
A Improve the accuracy of location
B Reduce the tendency to over-index
C Improve upon the acceleration and deceleration characteristics
D Reduce the cycle time

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