Related Questions

With increasing alumina content, the fusion point of high alumina refractories
A Increases
B Decreases
C Remains constant
D May increase or decrease ; depends on its alumina content
Maximum alumina content in high alumina refractory can be as high as __________ percent.
A 30
B 50
C 70
D 90
Pure bauxite is the best raw material for the manufacture of high alumina refractories, in which maximum alumina content can be as high as __________ percent.
A 55
B 70
C 80
D 90
With increase in the alumina content, the refractoriness of high alumina refractories
A Increases
B Decreases
C Remains same
D May increase or decrease
The main mineral constituents of the continental mass water ________ and alumina.
A Iron Oxide
B Silica
C Water
D Oxygen
The percentage of alumina and silica in good fire clay vary respectively is
A 25, 75
B 30, 70
C 35, 65
D All of these
Thermal conductivity based continuous flue gas analyser makes use of varying thermal conductivity of the constituents of flue gases. Which of the following constituents of flue gases has the maximum thermal conductivity?
A CO2
B N2
C O2
D CO
The type of igneous rocks which are formed midway between volcanic and plutonic rocks, are known as ________
A Basalt
B Hypabyssal
C Laccolith
D Batholith
While investigating the site, a thick layer of fairly firm clay over a deep layer of soft clay is encountered. In such a situation, the following type of foundation is useful:
A Pile formation
B Raft foundation
C Grillage foundation
D None of these
Which of the following clay mixing devices is vacuum operated for deairation of clay?
A Banbery mixer
B Pug mill
C Muller-mixer
D None of these

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