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Which is not true in respect of mechanical working of metals?
  • a)
    manifests in the shaping of metals by some mechanical means
  • b)
    can be worked either in cold or hot state
  • c)
    does not include the shaping of metals by casting, machining and grinding etc.
  • d)
    adversely affects the mechanical properties of metals
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
Which is not true in respect of mechanical working of metals?a)manifes...
Introduction:
Mechanical working of metals is a process where metals are shaped by some mechanical means. It can be done in both hot and cold states. However, it does not include the shaping of metals by casting, machining, and grinding.

Adversely affects the mechanical properties of metals:
This statement is not true in respect of the mechanical working of metals. Mechanical working of metals, whether in hot or cold state, can improve the mechanical properties of metals. When metals are subjected to mechanical forces, their grains get deformed, and the dislocation density increases. This leads to an increase in the strength and hardness of the metal.

Improves the mechanical properties of metals:
Mechanical working of metals can also improve other mechanical properties such as ductility, toughness, and fatigue strength. For example, when a metal is cold worked, its ductility decreases, but its strength and hardness increase. However, if the metal is then annealed, its ductility can be restored while maintaining its strength and hardness.

Types of mechanical working of metals:
There are various types of mechanical working of metals, such as rolling, forging, extrusion, drawing, and bending. Each type of mechanical working has its unique advantages and disadvantages, and the choice of method depends on the desired shape and properties of the final product.

Conclusion:
In conclusion, mechanical working of metals is an important process in the manufacturing industry. It can improve the mechanical properties of metals, and there are various types of mechanical working methods to choose from.
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Which is not true in respect of mechanical working of metals?a)manifests in the shaping of metals by some mechanical meansb)can be worked either in cold or hot statec)does not include the shaping of metals by casting, machining and grinding etc.d)adversely affects the mechanical properties of metalsCorrect answer is option 'D'. Can you explain this answer?
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Which is not true in respect of mechanical working of metals?a)manifests in the shaping of metals by some mechanical meansb)can be worked either in cold or hot statec)does not include the shaping of metals by casting, machining and grinding etc.d)adversely affects the mechanical properties of metalsCorrect answer is option 'D'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Which is not true in respect of mechanical working of metals?a)manifests in the shaping of metals by some mechanical meansb)can be worked either in cold or hot statec)does not include the shaping of metals by casting, machining and grinding etc.d)adversely affects the mechanical properties of metalsCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which is not true in respect of mechanical working of metals?a)manifests in the shaping of metals by some mechanical meansb)can be worked either in cold or hot statec)does not include the shaping of metals by casting, machining and grinding etc.d)adversely affects the mechanical properties of metalsCorrect answer is option 'D'. Can you explain this answer?.
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