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Directions : In each of the following questions a statement is given, followed by two conclusions. Give answer :

Statement : The integrated steel plants in India would no longer have to depend on imports for continuous casting refractories.

Assumptions :
I. Continuous casting refractories are needed by India.
II. Continuous casting refractories are in demand.
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.
Refractoriness/fusion points of 'superduty' refractories is __________ °C.
The sulphide capacity (Cs) of liquid slag of composition 55 wt% CaO, 20 wt% SiO2, 15 wt% Al2 O3 and 10 wt% MgO is given by the following equation
$$\log {C_s} = 3.44\left( {{X_{caO}} + 0.1\,{X_{MgO}} - 0.8\,{X_{A{l_2}{O_3}}} - {X_{si{o_2}}}} \right) - \left( {\frac{{9894}}{T}} \right) + 2.05$$
where, X is mole fraction of the respective components. Atomic weights of Ca, Mg, Si, Al and O are 40, 24, 28, 27, and 16 respectively. The value of Cs at 1900 K is
With increase in the alumina content, the refractoriness of high alumina refractories
Faster rate of drying of moulded refractories results in high __________ of refractories.
Silica refractories are also known as ______ refractories.
Basic refractories are costlier than acid refractories.
According to Naiya̅yikas we ascertain the relation of universal concomitance between x and y :  (A) We can determine the relation only if we can determine the relation of essential identity between x and y   (B) By perceiving that in all cases the presence of x is accompanied by the presence of y  (C) We can determine the relation only if we can determine the relation of cause and effect between x and y  (D) By not perceiving any instance where the presence of x is not accompanied by the presence of y or vice-versa.  Choose the correct answer from the options given below : 
What is the reason for the colour of soil being red in some parts of India? A. Presence of magnesium B. Presence of phosphate C. Presence of ferric oxide D. Presence of manure soil