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
There are two types of crusts - the continental and the oceanic. The continental crust is
A Thicker below the plains than below mountains
B Thicker below the mountains than below the plains
C Almost same all over
D Thicker under the oceans than under the seas
The rocks having alumina or clay as their major constituents are known as
A Siliceous rocks
B Argillaceous rocks
C Calcareous rocks
D Sedimentary rocks
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 ratio of the actual mass of water vapour in a unit mass of dry air to the mass of water vapour in the same mass of dry air when it is saturated at the same temperature and pressure, is called
A Humidity ratio
B Relative humidity
C Absolute humidity
D Degree of saturation
The main function of alumina in brick earth is
A To impart plasticity
B To make the brick durable
C To prevent shrinkage
D To make the brick impermeable
The mountains which come into being after the continental drift started, with the break up of the large land mass of pangola are
A young mountains
B old mountains
C volcanic mountains
D fold mountains

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