Rice husk is used for making cement because it contains a. Silica b. Calcium c. Iron d. None of these

Rice husk is used for making cement because it contains
a. Silica
b. Calcium
c. Iron
d. None of these
by

1 Answer

Answer :

a. Silica
by

Related questions

White cement contains less amount of ___________ [ A ] Lime [ B ] Silica [ C ] Alumina [ D ] Iron oxide

Description : White cement contains less amount of ___________ [ A ] Lime [ B ] Silica [ C ] Alumina [ D ] Iron oxide

Last Answer : [ D ] Iron oxide

Alumina, silica, lime and iron oxide are the basic raw material for the manufacture of Portland cement. The component of Portland cement which first hardens is (A) 5CaO. 3 Al2O3 (B) 3CaO. Al2O3 (C) 3CaO. SiO2 (D) 2CaO. SiO2

Description : Alumina, silica, lime and iron oxide are the basic raw material for the manufacture of Portland cement. The component of Portland cement which first hardens is (A) 5CaO. 3 Al2O3 (B) 3CaO. Al2O3 (C) 3CaO. SiO2 (D) 2CaO. SiO2

Last Answer : Option A

The maximum percentage of chemical ingredient of cement is that of (A) Magnesium oxide (B) Iron oxide (C) Silica (D) Lime

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Efflorescence in cement is caused due to an excess of (A) Alumina (B) Iron oxide (C) Silica (D) Alkalis

Description : Efflorescence in cement is caused due to an excess of (A) Alumina (B) Iron oxide (C) Silica (D) Alkalis

Last Answer : Answer: Option D

Pick up the correct proportions of chemical ingredients of cement (A) Lime : Silica : Alumina : Iron oxide : 63 : 22 : 6 : 3 (B) Silica : Lime : Alumina : Iron oxide : 63 : 22 : 6 : 3 (C) Alumina : Silica : Lime : Iron oxide : 63 : 22 : 6 : 3 (D) Iron oxide : Alumina : Silica : Lime : 63 : 22 : 6 : 3

Description : Pick up the correct proportions of chemical ingredients of cement (A) Lime : Silica : Alumina : Iron oxide : 63 : 22 : 6 : 3 (B) Silica : Lime : Alumina : Iron oxide : 63 : 22 : 6 : 3 (C) Alumina : Silica : ... oxide : 63 : 22 : 6 : 3 (D) Iron oxide : Alumina : Silica : Lime : 63 : 22 : 6 : 3

Last Answer : Answer: Option A

The main ingredients of Portland cement are (A) Lime and silica (B) Lime and alumina (C) Silica and alumina (D) Lime and iron

Description : The main ingredients of Portland cement are (A) Lime and silica (B) Lime and alumina (C) Silica and alumina (D) Lime and iron

Last Answer : Answer: Option A

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Description : Efflorescence is cement is caused due to the excess of (a) Lime (b) Silica (c) Alkalies (d) Iron oxide

Last Answer : (c) Alkalies

Which of the following ingredient of cement when added in excess quantity, causes the cement to set slowly. (a) Lime (b) Silica (c) Alumina (d) Iron oxide

Description : Which of the following ingredient of cement when added in excess quantity, causes the cement to set slowly. (a) Lime (b) Silica (c) Alumina (d) Iron oxide

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Last Answer : (a) 63:22:6:3

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Last Answer : (c) Lime

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Description : Efflorescence in cement is caused due to an excess of [ A ] Alkalies [ B ] Silica [ C ] Iron oxide [ D ] Alumina

Last Answer : [ A ] Alkalies

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Description : The minimum percentage of chemical ingredient of cement is [ A ] Iron oxide [ B ] Silica [ C ] Lime [ D ] Magnesium oxide

Last Answer : [ D ] Magnesium oxide

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Description : The maximum percentage of chemical ingredient of cement is [ A ] Iron oxide [ B ] Silica [ C ] Lime [ D ] Magnesium oxide

Last Answer : [ C ] Lime

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Description : What is applied to the rice husk before seeding ?

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Last Answer : (D) Rice husk

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Description : Aspergillosis (Brooder pneumonia) in young chicks is predisposed by the type of litter B A. rice husk B. Saw dust C. sand D. None of the these

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Description : Find out the ‗odd‘ among the following choices for fuel substitution for industrial sector of India. a) LDO with LSHS b) Coal with rice husk c) Natural gas for fertilizer plant d) LPG for soft coke

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Description : Write any two uses of rice husk and coir fibre. 

Last Answer : Uses of rice husk : 1. To make sound insulating material. 2. To make thermal insulation. 3. Used in manufacturing of clay bricks. 4. To make high grade concrete & mortar. 5. Used as ... delicate articles. 6. Used for geotextile. 7. Used in plaster work to make crack resistant plaster. 

Define rice husk. State the uses of rice husk.

Description : Define rice husk. State the uses of rice husk.

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Write any four uses of rice husk

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Last Answer : Answer: Option D

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Silica is used in _____. A. Plastic Making B. Glass Making C. Iron Making D. Wood Making

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Last Answer : Answer: Option D

Pick up the correct statement from the following: (A) The lime in excess makes the cement unsound and causes the cement to expand and disintegrate (B) The silica in excess makes the cement stronger but its setting time also increases (C) The excess amount of alumina weakens the cement (D) All the above

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For the manufacture of Portland cement, the proportions of raw materials used, are (A) Lime 63% ; silica 22% ; other ingredients 15% (B) Lime 22% ; silica 63% ; other ingredients 15% (C) Silica 40% ; lime 40% ; other ingredients 20% (D) Silica 70% ; lime 20% ; other ingredients 10%

Description : For the manufacture of Portland cement, the proportions of raw materials used, are (A) Lime 63% ; silica 22% ; other ingredients 15% (B) Lime 22% ; silica 63% ; other ingredients 15% (C) Silica 40% ; lime 40% ; other ingredients 20% (D) Silica 70% ; lime 20% ; other ingredients 10%

Last Answer : Answer: Option A

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Last Answer : a) Lime and silica*

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Description : (1) Calcium silicate and calcium alurninate Explanation: Portland cement is the most common type of cement in general use around the world because it is a basic ingredient of concrete, mortar, stucco ... limited amount of calcium sulfate (which controls the set time) and up to 5% minor constituents.

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Plants grown in acidic soil are deficient in_____ a. Calcium and Manganese b. Magnesium and Calcium c. Iron and Manganese d. Aluminium and Iron

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Last Answer : b. Magnesium and Calcium

Plants grown in acidic soil are deficient in_____ a. Calcium and Manganese b. Magnesium and Calcium c. Iron and Manganese d. Aluminium and Iron

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Slate (A) Is a metamorphic rock (B) Splits into thin sheets along its bedding planes (C) Has a smooth surface and contains alumina and silica (D) Possesses good water absorption capacity

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Milk contains very poor amounts of (A) Calcium (B) Phosphate (C) Iron (D) Riboflavin

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Asbestos (A) Is a natural fibrous mineral substance (B) Is composed of hydrous silicates of calcium and magnesium (CaSiO3, 3MgSiO3) (C) Contains iron oxide and alumina (D) All the above

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