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A vector field is given as follows

Q. A vector field is given as follows: 𝑓⃗ = (−𝑥2𝑦 + 𝑥𝑦2) 𝑖̂ + (𝑥2𝑦) 𝑗 The divergence of this field evaluated at (𝑥, 𝑦) = (2, 2) is_________________ Ans: -0.1 to 0.1                                 .

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Which of the following categories of materials is suitable as a filler for brazing of steel sheets?

Q. Which of the following categories of materials is suitable as a filler for brazing of steel sheets? (A) Epoxy resins                                            (B) Near-eutectic alloys (C) Refractory alloys                                    (D) Large freezing range alloys Ans: ...

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