20 Most Repeated MCQ Science and Technology in UPSC Prelims

Welcome to your 20 Most Repeated MCQ Science and Technology in UPSC Prelims

What is the main purpose of using a superconductor?
Which among the following is used in nuclear reactors as a moderator?
What is the purpose of the ‘Cryogenic engine’ in rockets?
Which among the following is not an artificial satellite?
Which part of a cell is called the “Powerhouse”?
Which among the following is the best conductor of electricity?
The principle of working of a transformer is—
Which one of the following gases causes acid rain?
The ozone layer is found in which layer of atmosphere?
What is the function of a catalyst in a chemical reaction?
Which among the following is a renewable source of energy?
Which among the following has maximum refractive index?
DNA stands for—
Which vitamin is produced in the human body by sunlight?
The speed of light is maximum in
What is the function of the pancreas in the human body?
What is the full form of DNA and RNA used for?
What does ISRO’s Chandrayaan-3 mission primarily study?

Asked in: UPSC 2024Deselect Answer

What is the main component of biogas?

Repeated in: 2013, 2017, 2020Deselect Answer

What is the full form of LASER?

Repeated in: 2014, 2018, 2023Deselect Answer

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    Aditya Raj Anand (Msc Physics student) is a dedicated book author and the founder of Science laws a well-regarded blog that deliver science related News and Education. Aditya holds a Bachelor of Science (B.Sc.) in Mathematics, currently doing Master in Physics. A discipline that has fueled his lifelong passion for understanding and demonstrating complex scientific principles. Throughout his academic journey, he developed a deep interest in simplifying challenging concepts in science and making them more accessible to a wider audience. He is written science for more than 5 years. He has served as a writer, editor and analyst at science laws since its inception.

    As an author, He published Physics for class 9, physics for class 10, General science and technology For BPSC & UPSC

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    You can also connect with Aditya on Instagram at @sciencelaws.in, where he shares his thoughts and provides explanations on topics related to space, Technology, Physics, Chemistry and Scriptures.

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