Mechanical Engineering
2025 · Paper 1
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Complete GATE ME 2025 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 37–39 of 65. Imported answers require review unless explicitly marked reviewed.
Question 37
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Considering the actual demand and the forecast for a product given in the table below, the mean forecast error and the mean absolute deviation, respectively, are
Period | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
|---|---|---|---|---|---|---|---|---|---|---|
Actual demand | 425 | 415 | 420 | 430 | 427 | 418 | 422 | 416 | 426 | 421 |
Forecast | 427 | 422 | 416 | 422 | 423 | 420 | 419 | 418 | 430 | 415 |
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 38
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Match the mold elements in the casting process with the most suitable function.
Mold element | Function |
|---|---|
P. Blind riser | I. Cast with internal cavity |
Q. Chill | II. Molten metal reservoir |
R. Skim bob | III. Nucleating agent |
S. Core | IV. Assisting in faster heat removal from melt |
T. Insulating sleeve | V. Removal of impurities |
U. Inoculant | VI. Increasing the solidification time |
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 39
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Wire drawing operation is performed on a perfectly plastic material without any strain hardening. Assuming no friction and no redundant work, the maximum possible percentage reduction in area in a single pass is closest to
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