Major component of flint glass is (A) Lead oxide (B) Silica (C) Alumina (D) Soda

Major component of flint glass is
(A) Lead oxide
(B) Silica
(C) Alumina
(D) Soda
by

1 Answer

Answer :

(A) Lead oxide
by

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The slag which floats on the surface of the molten iron generally contains (A) Lime (CaO) 45% (B) Silica (SiO2) 35% (C) Alumina (Al2O3) 12% and MgO, CaSO4, KMnO2 and FeO 8% (D) All these

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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

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Last Answer : Answer: Option A

Which of the following ingredients of the brick earth enables the brick to retain its shape? (A) Alumina (B) Silica (C) Iron (D) Magnesia

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Last Answer : Answer: Option B

Which of the following pairs gives a correct combination of the useful and harmful constituents respectively of a good brick earth? (A) Lime stone and alumina (B) Silica and alkalies (C) Alumina and iron (D) Alkalies and magnesium

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Last Answer : Answer: Option B

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Last Answer : Answer: Option A

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Last Answer : a) Alumina*