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A bar of brass is enclosed in a steel tube and are rigidly fastened at both the ends. If the coefficient of thermal expansion of brass is more than that of the steel, when the temperature rises, the nature of stresses developed are-
- a)tensile in steel and compressive in brass bar
- b)compressive in steel and tensile in brass bars
- c)tensile in both steel and brass bars
- d)compressive in both steel and brass bars
Correct answer is option 'A'. Can you explain this answer?
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A bar of brass is enclosed in a steel tube and are rigidly fastened at...
**Explanation:**
When a bar of brass is enclosed in a steel tube and rigidly fastened at both ends, and the temperature rises, the bar and the tube will experience thermal expansion. However, since the coefficient of thermal expansion of brass is greater than that of steel, the brass bar will expand more than the steel tube.
**1. Coefficient of thermal expansion:**
The coefficient of thermal expansion is a measure of how much a material expands or contracts when its temperature changes. It is denoted by the symbol α and is expressed in units of per degree Celsius (°C).
**2. Tensile and compressive stress:**
Tensile stress is a type of stress that tends to elongate or stretch a material, while compressive stress is a type of stress that tends to shorten or compress a material.
**3. Nature of stresses developed:**
When the temperature rises, the brass bar will expand more than the steel tube. This difference in expansion will create a differential expansion between the two materials, resulting in the development of stresses.
Since brass has a higher coefficient of thermal expansion, it will expand more than the steel tube. As a result, the brass bar will exert a force on the steel tube, causing it to be elongated. This elongation of the steel tube will result in tensile stress in the steel.
Similarly, the brass bar will experience compressive stress because it is being constrained by the steel tube, which is not expanding as much. The brass bar will be compressed and tend to shorten due to the constraints imposed by the steel tube.
Therefore, when the temperature rises, the nature of stresses developed will be tensile in the steel tube and compressive in the brass bar. This is because the brass bar expands more than the steel tube, causing the steel tube to be elongated (tensile stress) and the brass bar to be compressed (compressive stress).
Hence, the correct answer is option 'A': tensile stress in the steel tube and compressive stress in the brass bar.
When a bar of brass is enclosed in a steel tube and rigidly fastened at both ends, and the temperature rises, the bar and the tube will experience thermal expansion. However, since the coefficient of thermal expansion of brass is greater than that of steel, the brass bar will expand more than the steel tube.
**1. Coefficient of thermal expansion:**
The coefficient of thermal expansion is a measure of how much a material expands or contracts when its temperature changes. It is denoted by the symbol α and is expressed in units of per degree Celsius (°C).
**2. Tensile and compressive stress:**
Tensile stress is a type of stress that tends to elongate or stretch a material, while compressive stress is a type of stress that tends to shorten or compress a material.
**3. Nature of stresses developed:**
When the temperature rises, the brass bar will expand more than the steel tube. This difference in expansion will create a differential expansion between the two materials, resulting in the development of stresses.
Since brass has a higher coefficient of thermal expansion, it will expand more than the steel tube. As a result, the brass bar will exert a force on the steel tube, causing it to be elongated. This elongation of the steel tube will result in tensile stress in the steel.
Similarly, the brass bar will experience compressive stress because it is being constrained by the steel tube, which is not expanding as much. The brass bar will be compressed and tend to shorten due to the constraints imposed by the steel tube.
Therefore, when the temperature rises, the nature of stresses developed will be tensile in the steel tube and compressive in the brass bar. This is because the brass bar expands more than the steel tube, causing the steel tube to be elongated (tensile stress) and the brass bar to be compressed (compressive stress).
Hence, the correct answer is option 'A': tensile stress in the steel tube and compressive stress in the brass bar.
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A bar of brass is enclosed in a steel tube and are rigidly fastened at both the ends. If the coefficient of thermal expansion of brass is more than that of the steel, when the temperature rises, the nature of stresses developed are-a)tensile in steel and compressive in brass barb)compressive in steel and tensile in brass barsc)tensile in both steel and brass barsd)compressive in both steel and brass barsCorrect answer is option 'A'. Can you explain this answer?
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A bar of brass is enclosed in a steel tube and are rigidly fastened at both the ends. If the coefficient of thermal expansion of brass is more than that of the steel, when the temperature rises, the nature of stresses developed are-a)tensile in steel and compressive in brass barb)compressive in steel and tensile in brass barsc)tensile in both steel and brass barsd)compressive in both steel and brass barsCorrect answer is option 'A'. Can you explain this answer? for SSC 2024 is part of SSC preparation. The Question and answers have been prepared according to the SSC exam syllabus. Information about A bar of brass is enclosed in a steel tube and are rigidly fastened at both the ends. If the coefficient of thermal expansion of brass is more than that of the steel, when the temperature rises, the nature of stresses developed are-a)tensile in steel and compressive in brass barb)compressive in steel and tensile in brass barsc)tensile in both steel and brass barsd)compressive in both steel and brass barsCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for SSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A bar of brass is enclosed in a steel tube and are rigidly fastened at both the ends. If the coefficient of thermal expansion of brass is more than that of the steel, when the temperature rises, the nature of stresses developed are-a)tensile in steel and compressive in brass barb)compressive in steel and tensile in brass barsc)tensile in both steel and brass barsd)compressive in both steel and brass barsCorrect answer is option 'A'. Can you explain this answer?.
A bar of brass is enclosed in a steel tube and are rigidly fastened at both the ends. If the coefficient of thermal expansion of brass is more than that of the steel, when the temperature rises, the nature of stresses developed are-a)tensile in steel and compressive in brass barb)compressive in steel and tensile in brass barsc)tensile in both steel and brass barsd)compressive in both steel and brass barsCorrect answer is option 'A'. Can you explain this answer? for SSC 2024 is part of SSC preparation. The Question and answers have been prepared according to the SSC exam syllabus. Information about A bar of brass is enclosed in a steel tube and are rigidly fastened at both the ends. If the coefficient of thermal expansion of brass is more than that of the steel, when the temperature rises, the nature of stresses developed are-a)tensile in steel and compressive in brass barb)compressive in steel and tensile in brass barsc)tensile in both steel and brass barsd)compressive in both steel and brass barsCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for SSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A bar of brass is enclosed in a steel tube and are rigidly fastened at both the ends. If the coefficient of thermal expansion of brass is more than that of the steel, when the temperature rises, the nature of stresses developed are-a)tensile in steel and compressive in brass barb)compressive in steel and tensile in brass barsc)tensile in both steel and brass barsd)compressive in both steel and brass barsCorrect answer is option 'A'. Can you explain this answer?.
Solutions for A bar of brass is enclosed in a steel tube and are rigidly fastened at both the ends. If the coefficient of thermal expansion of brass is more than that of the steel, when the temperature rises, the nature of stresses developed are-a)tensile in steel and compressive in brass barb)compressive in steel and tensile in brass barsc)tensile in both steel and brass barsd)compressive in both steel and brass barsCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for SSC.
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ample number of questions to practice A bar of brass is enclosed in a steel tube and are rigidly fastened at both the ends. If the coefficient of thermal expansion of brass is more than that of the steel, when the temperature rises, the nature of stresses developed are-a)tensile in steel and compressive in brass barb)compressive in steel and tensile in brass barsc)tensile in both steel and brass barsd)compressive in both steel and brass barsCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice SSC tests.
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