Engineering

Boost your preparation with the latest Engineering MCQs with answers and explanations. Our collection covers civil engineering, electrical engineering, mechanical engineering, electronics, software engineering, and other core subjects. These multiple-choice questions are designed for students, competitive exam aspirants, and professionals preparing for NTS, PPSC, FPSC, CSS, PMS, PEC exams, university entry tests, and job interviews. Practice online with updated Engineering MCQs to strengthen concepts, improve technical knowledge, and perform better in exams and recruitment tests.

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271. Shrinkage allowance on pattern is provided to compensate for shrinkage when the

A. Metal changes from liquid state to solid state at freezing temperature
B. Solid phase temperature drops from freezing temperature to the room temperature
C. Liquid metal temperature drops from pouring temperature to room temperature
D. Liquid metal temperature drops from pouring temperature to freezing temperature
✅ The correct answer is option B.

280. In hot working, dynamic recovery occurs in

A. Metals of low stacking fault energy
B. Metals of high stacking fault energy e.g. α-iron
C. Single crystal of Ni-based superalloys
D. None of these
✅ The correct answer is option B.