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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.

📘 Chemical Engineering
📘 Civil Engineering
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📘 Mechanical Engineering
📘 Software Engineering MCQs

2731. Fixed carbon in coal is defined as

September 7, 2025 by Admin
That present in volatile matters
The total quantity of carbon present in the coal
Hundred minus the percentage of volatile matter, ash and moisture
The one which is present in the residue after combustion
✅ The correct answer is option C.
Categories Chemical Engineering, Engineering, Fuel and Combustion MCQs Tags Chemical Engineering MCQs, Engineering MCQs, Fuel and Combustion MCQs Leave a comment

2732. A coal containing very high percentage of durain is called __________ coal.

September 7, 2025 by Admin
Bright
Splint
Non-banded
Boghead
✅ The correct answer is option B.
Categories Chemical Engineering, Engineering, Fuel and Combustion MCQs Tags Chemical Engineering MCQs, Engineering MCQs, Fuel and Combustion MCQs Leave a comment

2733. Diesel index is defined as

September 7, 2025 by Admin
(°API) x (Aniline Point, °F)/100
(°API) x (Aniline Point, °C)/100
(°API) x (100)/Aniline Point, °F
(°API) x (100)/Aniline Point, °C
✅ The correct answer is option A.
Categories Chemical Engineering, Engineering, Petroleum Refinery Engineering MCQs Tags Chemical Engineering MCQs, Engineering MCQs, Petroleum Refinery Engineering MCQs Leave a comment

2734. The maximum adiabatic flame temperature is attained, when the fuel is burnt with

September 7, 2025 by Admin
Theoretically required amount of air
More than theoretically required amount of air
Less than theoretically required amount of air
Theoretically required amount of oxygen
✅ The correct answer is option D.
Categories Chemical Engineering, Engineering, Fuel and Combustion MCQs Tags Chemical Engineering MCQs, Engineering MCQs, Fuel and Combustion MCQs Leave a comment

2735. Which of the following is called “blue gas”?

September 7, 2025 by Admin
Coke oven gas
Water gas
Natural gas
Producer gas
✅ The correct answer is option B.
Categories Chemical Engineering, Engineering, Fuel and Combustion MCQs Tags Chemical Engineering MCQs, Engineering MCQs, Fuel and Combustion MCQs Leave a comment

2736. Cannel coal

September 7, 2025 by Admin
Is non-coking
Has a high volatile matter content and burns with a luminous smoky flame
Is a non-banded coal which can be ignited easily with a match stick or candle flame, hence is so named
All of the above
✅ The correct answer is option D.
Categories Chemical Engineering, Engineering, Fuel and Combustion MCQs Tags Chemical Engineering MCQs, Engineering MCQs, Fuel and Combustion MCQs Leave a comment

2737. Which of the following tests is not done for transformer oil ?

September 7, 2025 by Admin
Flash point and acid value.
Aniline point.
Dielectric strength.
Copper strip corrosion test.
✅ The correct answer is option B.
Categories Chemical Engineering, Engineering, Petroleum Refinery Engineering MCQs Tags Chemical Engineering MCQs, Engineering MCQs, Petroleum Refinery Engineering MCQs Leave a comment

2738. Lane and Garton classification of petroleum is based on its

September 7, 2025 by Admin
composition
specific gravity
optical properties
viscosity
✅ The correct answer is option B.
Categories Chemical Engineering, Engineering, Petroleum Refinery Engineering MCQs Tags Chemical Engineering MCQs, Engineering MCQs, Petroleum Refinery Engineering MCQs Leave a comment

2739. Gasoline yield in catalytic reforming of naphtha may be about __________ percent by weight.

September 7, 2025 by Admin
85
65
50
98
✅ The correct answer is option A.
Categories Chemical Engineering, Engineering, Petroleum Refinery Engineering MCQs Tags Chemical Engineering MCQs, Engineering MCQs, Petroleum Refinery Engineering MCQs Leave a comment

2740. Which of the following has the highest gross calorific value?

September 7, 2025 by Admin
Blast furnace gas
Coke oven gas
Carburetted water gas
Oil refinery gas
✅ The correct answer is option D.
Categories Chemical Engineering, Engineering, Fuel and Combustion MCQs Tags Chemical Engineering MCQs, Engineering MCQs, Fuel and Combustion MCQs Leave a comment
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