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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2792. Ratio of primary air to secondary air increases with increase in the rank of coal, because the

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High rank coals have higher amount of volatile matter
Ratio of fixed carbon to volatile matter increases
Oxygen content progressively decreases
Calorific value of the coal increases
✅ The correct answer is option B.

2797. Petroleum deposits are detected by the.

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oil seepage at the surface of the earth.
measuremet of density, elasticity and magnetic & electric properties of the rock in the crust of the earth.
age & nature of rocks inside the crust of the earth.
all (a), (b) and (c)
✅ The correct answer is option D.