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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1213. Pick out the wrong statement:

A. Soft water is more corrosive than that carrying calcium salts
B. The corrosion of brass condenser tubes handling brine solution is also termed as ‘dezincification’
C. Non-annealed brass is highly susceptible to season cracking (i.e., inter-crystal corrosion due to internal stresses)
D. Pure copper is highly susceptible to stress corrosion
✅ The correct answer is option D.

1217. Galvanic corrosion

A. Occurs in a bimetal couple
B. Occurs in highly stressed metallic parts only
C. Is exemplified by caustic embrittlement of boiler tubes
D. Is also called dezincification
✅ The correct answer is option A.