Mechanical Engineering Exam > Mechanical Engineering Questions > Which statement is true for EDM?1. MRR increa...
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Which statement is true for EDM?
1. MRR increases with decreasing resistance.
2. MRR increases with decreasing capacitance.
3. MRR increases with increasing capacitance.
4. MRR increases with optimum spark gap then decreases with increasing spark gap.
1. MRR increases with decreasing resistance.
2. MRR increases with decreasing capacitance.
3. MRR increases with increasing capacitance.
4. MRR increases with optimum spark gap then decreases with increasing spark gap.
- a)1, 2, 3 and 4
- b)1, 2 and 3
- c)1, 3 and 4
- d)1, 2 and 4
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
Which statement is true for EDM?1. MRR increases with decreasing resis...
Hence for higher MRR higher current and higher atomic weight is required.
Most Upvoted Answer
Which statement is true for EDM?1. MRR increases with decreasing resis...
Correct answer is C.
true statements are:-
1- MRR increase with decrease is resistance.
3- MRR increase with increase in capacitance.
and
4- MRR increase with optimum spark gap and then decrease with increasing spark gap..
so statement 1,3,4 are correct.
true statements are:-
1- MRR increase with decrease is resistance.
3- MRR increase with increase in capacitance.
and
4- MRR increase with optimum spark gap and then decrease with increasing spark gap..
so statement 1,3,4 are correct.
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Community Answer
Which statement is true for EDM?1. MRR increases with decreasing resis...
Explanation:
Electrical Discharge Machining (EDM) is a non-traditional machining process used to shape and form metal parts by utilizing electrical discharges. The process involves creating a controlled electric discharge between a tool electrode and the workpiece to remove material through melting and vaporization. The Material Removal Rate (MRR) is an important parameter in EDM, which refers to the amount of material removed per unit time.
1. MRR increases with decreasing resistance:
Resistance is a measure of the opposition to the flow of electric current. In EDM, a high resistance in the spark gap is desirable as it helps to generate a higher discharge energy. This higher energy leads to a higher MRR as more material is melted and vaporized. Therefore, as the resistance decreases, the MRR decreases.
2. MRR increases with decreasing capacitance:
Capacitance is a measure of the ability of a system to store an electric charge. In EDM, the capacitance determines the energy stored in the electrical circuit. A lower capacitance results in a higher discharge energy, which leads to a higher MRR. Hence, as the capacitance decreases, the MRR increases.
3. MRR increases with increasing capacitance:
This statement is incorrect. As explained above, a higher capacitance results in a higher energy stored in the electrical circuit, which leads to a higher MRR. Therefore, as the capacitance increases, the MRR also increases.
4. MRR increases with optimum spark gap then decreases with increasing spark gap:
The spark gap is the distance between the tool electrode and the workpiece. An optimum spark gap is required to ensure a stable and efficient discharge. When the spark gap is too small, the discharge may be unstable, resulting in lower MRR. On the other hand, when the spark gap is too large, the discharge energy decreases, leading to a lower MRR. Therefore, there is an optimum spark gap where the MRR is maximized. Beyond this optimum spark gap, the MRR decreases.
Conclusion:
Based on the above explanations, the correct statement for EDM is:
MRR increases with decreasing resistance, decreasing capacitance, and optimum spark gap, then decreases with increasing spark gap.
Electrical Discharge Machining (EDM) is a non-traditional machining process used to shape and form metal parts by utilizing electrical discharges. The process involves creating a controlled electric discharge between a tool electrode and the workpiece to remove material through melting and vaporization. The Material Removal Rate (MRR) is an important parameter in EDM, which refers to the amount of material removed per unit time.
1. MRR increases with decreasing resistance:
Resistance is a measure of the opposition to the flow of electric current. In EDM, a high resistance in the spark gap is desirable as it helps to generate a higher discharge energy. This higher energy leads to a higher MRR as more material is melted and vaporized. Therefore, as the resistance decreases, the MRR decreases.
2. MRR increases with decreasing capacitance:
Capacitance is a measure of the ability of a system to store an electric charge. In EDM, the capacitance determines the energy stored in the electrical circuit. A lower capacitance results in a higher discharge energy, which leads to a higher MRR. Hence, as the capacitance decreases, the MRR increases.
3. MRR increases with increasing capacitance:
This statement is incorrect. As explained above, a higher capacitance results in a higher energy stored in the electrical circuit, which leads to a higher MRR. Therefore, as the capacitance increases, the MRR also increases.
4. MRR increases with optimum spark gap then decreases with increasing spark gap:
The spark gap is the distance between the tool electrode and the workpiece. An optimum spark gap is required to ensure a stable and efficient discharge. When the spark gap is too small, the discharge may be unstable, resulting in lower MRR. On the other hand, when the spark gap is too large, the discharge energy decreases, leading to a lower MRR. Therefore, there is an optimum spark gap where the MRR is maximized. Beyond this optimum spark gap, the MRR decreases.
Conclusion:
Based on the above explanations, the correct statement for EDM is:
MRR increases with decreasing resistance, decreasing capacitance, and optimum spark gap, then decreases with increasing spark gap.
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Which statement is true for EDM?1. MRR increases with decreasing resistance.2. MRR increases with decreasing capacitance.3. MRR increases with increasing capacitance.4. MRR increases with optimum spark gap then decreases with increasing spark gap.a)1, 2, 3 and 4b)1, 2 and 3c)1, 3 and 4d)1, 2 and 4Correct answer is option 'A'. Can you explain this answer?
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Which statement is true for EDM?1. MRR increases with decreasing resistance.2. MRR increases with decreasing capacitance.3. MRR increases with increasing capacitance.4. MRR increases with optimum spark gap then decreases with increasing spark gap.a)1, 2, 3 and 4b)1, 2 and 3c)1, 3 and 4d)1, 2 and 4Correct answer is option 'A'. 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 statement is true for EDM?1. MRR increases with decreasing resistance.2. MRR increases with decreasing capacitance.3. MRR increases with increasing capacitance.4. MRR increases with optimum spark gap then decreases with increasing spark gap.a)1, 2, 3 and 4b)1, 2 and 3c)1, 3 and 4d)1, 2 and 4Correct answer is option 'A'. 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 statement is true for EDM?1. MRR increases with decreasing resistance.2. MRR increases with decreasing capacitance.3. MRR increases with increasing capacitance.4. MRR increases with optimum spark gap then decreases with increasing spark gap.a)1, 2, 3 and 4b)1, 2 and 3c)1, 3 and 4d)1, 2 and 4Correct answer is option 'A'. Can you explain this answer?.
Which statement is true for EDM?1. MRR increases with decreasing resistance.2. MRR increases with decreasing capacitance.3. MRR increases with increasing capacitance.4. MRR increases with optimum spark gap then decreases with increasing spark gap.a)1, 2, 3 and 4b)1, 2 and 3c)1, 3 and 4d)1, 2 and 4Correct answer is option 'A'. 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 statement is true for EDM?1. MRR increases with decreasing resistance.2. MRR increases with decreasing capacitance.3. MRR increases with increasing capacitance.4. MRR increases with optimum spark gap then decreases with increasing spark gap.a)1, 2, 3 and 4b)1, 2 and 3c)1, 3 and 4d)1, 2 and 4Correct answer is option 'A'. 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 statement is true for EDM?1. MRR increases with decreasing resistance.2. MRR increases with decreasing capacitance.3. MRR increases with increasing capacitance.4. MRR increases with optimum spark gap then decreases with increasing spark gap.a)1, 2, 3 and 4b)1, 2 and 3c)1, 3 and 4d)1, 2 and 4Correct answer is option 'A'. Can you explain this answer?.
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ample number of questions to practice Which statement is true for EDM?1. MRR increases with decreasing resistance.2. MRR increases with decreasing capacitance.3. MRR increases with increasing capacitance.4. MRR increases with optimum spark gap then decreases with increasing spark gap.a)1, 2, 3 and 4b)1, 2 and 3c)1, 3 and 4d)1, 2 and 4Correct answer is option 'A'. Can you explain this answer? tests, examples and also practice Mechanical Engineering tests.
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