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Consider the following statements regarding Fly Ash:
- It primarily consists of oxides of silicon, aluminium and calcium.
- It can completely replace cement.
- It can enhance the water-holding capacity of the soil.
Which of the statements given above are correct?
- a)1 and 2 only
- b)2 and 3 only
- c)1 and 3 only
- d)1, 2 and 3
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Consider the following statements regarding Fly Ash: It primarily cons...
Fly ash consists primarily of oxides of silicon, aluminium, iron and calcium. Magnesium, potassium, sodium, titanium, and sulphur are also present to a lesser degree. So, statement (1) is correct.Cement can be replaced by fly ash up to 35% and not completely reducing the cost of construction. Using fly ash in concrete is environmentally beneficial because it reduces the Portland cement (a major contributor of CO2) required in concrete. The fly ash bricks are light in weight and offer high strength and durability.
Longer Setting Times – Fly ash admixtures can lengthen the time it takes for concrete to set. Sometimes this is desirable, particularly in hot weather which speeds up concrete set times, but at other times it is an inconvenience and can cause construction delays. Other admixtures may be necessary to adjust the concrete's set time, depending on the percent fly ash in the mixture and the outside temperature. So, statement (2) is not correct. Fly ash can increase the crop yield and also enhances the water-holding capacity. So, statement (3) is correct. Therefore, the correct answer is c.
Longer Setting Times – Fly ash admixtures can lengthen the time it takes for concrete to set. Sometimes this is desirable, particularly in hot weather which speeds up concrete set times, but at other times it is an inconvenience and can cause construction delays. Other admixtures may be necessary to adjust the concrete's set time, depending on the percent fly ash in the mixture and the outside temperature. So, statement (2) is not correct. Fly ash can increase the crop yield and also enhances the water-holding capacity. So, statement (3) is correct. Therefore, the correct answer is c.
Community Answer
Consider the following statements regarding Fly Ash: It primarily cons...
Explanation:
Statements:
- Statement 1: Fly Ash primarily consists of oxides of silicon, aluminium, and calcium. This statement is correct as these are the main components found in fly ash.
- Statement 2: Fly Ash cannot completely replace cement. While it can be used as a partial replacement for cement in concrete production, it cannot completely substitute cement due to differences in properties and functionalities.
- Statement 3: Fly Ash can enhance the water-holding capacity of the soil. This statement is correct as fly ash, when mixed with soil, can improve its water retention ability, which is beneficial for plant growth.
Therefore, the correct statements are 1 and 3 only. Fly Ash is a byproduct of coal combustion and has various applications in construction, agriculture, and environmental remediation due to its unique properties.
Statements:
- Statement 1: Fly Ash primarily consists of oxides of silicon, aluminium, and calcium. This statement is correct as these are the main components found in fly ash.
- Statement 2: Fly Ash cannot completely replace cement. While it can be used as a partial replacement for cement in concrete production, it cannot completely substitute cement due to differences in properties and functionalities.
- Statement 3: Fly Ash can enhance the water-holding capacity of the soil. This statement is correct as fly ash, when mixed with soil, can improve its water retention ability, which is beneficial for plant growth.
Therefore, the correct statements are 1 and 3 only. Fly Ash is a byproduct of coal combustion and has various applications in construction, agriculture, and environmental remediation due to its unique properties.
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Consider the following statements regarding Fly Ash: It primarily consists of oxides of silicon, aluminium and calcium. It can completely replace cement. It can enhance the water-holding capacity of the soil.Which of the statements given above are correct?a)1 and 2 onlyb)2 and 3 onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'C'. Can you explain this answer?
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Consider the following statements regarding Fly Ash: It primarily consists of oxides of silicon, aluminium and calcium. It can completely replace cement. It can enhance the water-holding capacity of the soil.Which of the statements given above are correct?a)1 and 2 onlyb)2 and 3 onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'C'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Consider the following statements regarding Fly Ash: It primarily consists of oxides of silicon, aluminium and calcium. It can completely replace cement. It can enhance the water-holding capacity of the soil.Which of the statements given above are correct?a)1 and 2 onlyb)2 and 3 onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements regarding Fly Ash: It primarily consists of oxides of silicon, aluminium and calcium. It can completely replace cement. It can enhance the water-holding capacity of the soil.Which of the statements given above are correct?a)1 and 2 onlyb)2 and 3 onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'C'. Can you explain this answer?.
Consider the following statements regarding Fly Ash: It primarily consists of oxides of silicon, aluminium and calcium. It can completely replace cement. It can enhance the water-holding capacity of the soil.Which of the statements given above are correct?a)1 and 2 onlyb)2 and 3 onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'C'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Consider the following statements regarding Fly Ash: It primarily consists of oxides of silicon, aluminium and calcium. It can completely replace cement. It can enhance the water-holding capacity of the soil.Which of the statements given above are correct?a)1 and 2 onlyb)2 and 3 onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements regarding Fly Ash: It primarily consists of oxides of silicon, aluminium and calcium. It can completely replace cement. It can enhance the water-holding capacity of the soil.Which of the statements given above are correct?a)1 and 2 onlyb)2 and 3 onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'C'. Can you explain this answer?.
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