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Consider the following statements:
A good soil for making bricks should contain
1. About 30% alumina
2. About 10% lime nodules
3. Small quantity of iron oxide
4. About 15% magnesia
A good soil for making bricks should contain
1. About 30% alumina
2. About 10% lime nodules
3. Small quantity of iron oxide
4. About 15% magnesia
Which of these statements are correct
- a)1 and 2
- b)1 and 3
- c)1, 3 and 4
- d)2, 3 and 4
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
Consider the following statements:A good soil for making bricks should...
Explanation:
To make bricks, a good soil composition is necessary as it directly affects the quality and strength of the bricks. The correct statements regarding the composition of good soil for making bricks are:
1. About 30% alumina:
- Alumina is an important ingredient in brick making as it helps in the formation of the desired shape and structure of the bricks.
- It also enhances the refractory properties of the bricks, making them resistant to high temperatures.
- A soil composition with about 30% alumina is considered suitable for brick making.
2. About 10% lime nodules:
- Lime nodules are small particles of calcium carbonate that are present in the soil composition.
- The presence of lime nodules helps in binding the soil particles together during the firing process, resulting in stronger and more durable bricks.
- A soil composition with about 10% lime nodules is considered suitable for brick making.
3. Small quantity of iron oxide:
- Iron oxide is a coloring agent that gives the bricks a reddish color after firing.
- A small quantity of iron oxide is desirable as it adds aesthetic value to the bricks.
- However, excessive amounts of iron oxide can weaken the bricks and affect their structural integrity.
4. About 15% magnesia:
- Magnesia is not a desirable component in brick making soil composition.
- Excessive amounts of magnesia can cause the bricks to expand and crack during firing.
- Therefore, a soil composition with about 15% magnesia is not recommended for brick making.
Conclusion:
Based on the given statements, the correct statements regarding the composition of good soil for making bricks are 1 (About 30% alumina) and 3 (Small quantity of iron oxide). Therefore, option 'B' is the correct answer.
To make bricks, a good soil composition is necessary as it directly affects the quality and strength of the bricks. The correct statements regarding the composition of good soil for making bricks are:
1. About 30% alumina:
- Alumina is an important ingredient in brick making as it helps in the formation of the desired shape and structure of the bricks.
- It also enhances the refractory properties of the bricks, making them resistant to high temperatures.
- A soil composition with about 30% alumina is considered suitable for brick making.
2. About 10% lime nodules:
- Lime nodules are small particles of calcium carbonate that are present in the soil composition.
- The presence of lime nodules helps in binding the soil particles together during the firing process, resulting in stronger and more durable bricks.
- A soil composition with about 10% lime nodules is considered suitable for brick making.
3. Small quantity of iron oxide:
- Iron oxide is a coloring agent that gives the bricks a reddish color after firing.
- A small quantity of iron oxide is desirable as it adds aesthetic value to the bricks.
- However, excessive amounts of iron oxide can weaken the bricks and affect their structural integrity.
4. About 15% magnesia:
- Magnesia is not a desirable component in brick making soil composition.
- Excessive amounts of magnesia can cause the bricks to expand and crack during firing.
- Therefore, a soil composition with about 15% magnesia is not recommended for brick making.
Conclusion:
Based on the given statements, the correct statements regarding the composition of good soil for making bricks are 1 (About 30% alumina) and 3 (Small quantity of iron oxide). Therefore, option 'B' is the correct answer.
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Consider the following statements:A good soil for making bricks should contain1. About 30% alumina2. About 10% lime nodules3. Small quantity of iron oxide4. About 15% magnesiaWhich of these statements are correcta)1 and 2b)1 and 3c)1, 3 and 4d)2, 3 and 4Correct answer is option 'B'. Can you explain this answer?
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