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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3782. Multistage operation (as in the case of catalytic oxidation of SO₂) is not carried out for NH₃ synthesis, because of

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Comparatively higher pressure drop
High cost of the high pressure vessel used for the reactor
Higher pumping cost
Chances of entrainment and disturbance of catalyst bed
✅ The correct answer is option B.

3785. A boiling water reactor is the one, in which the

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coolant water is allowed to boil in the core of the reactor.
coolant water, after being heated in the reactor core, generates steam in a boiler.
pressurised water is pumped into the core.
fuel and the coolant are thoroughly mixed to form a homogeneous solution.
✅ The correct answer is option A.