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Question

In winters, people wear jacket because ______

This question was previously asked in
RRB NTPC 2024 Undergraduate CBT 1 Question Paper (29-Aug-2025) (Shift 1)
The correct answer is

fabric of jacket is an insulator of heat so it traps body heat

In winter, it's important to preserve body heat to stay warm. Jackets are essential for this purpose because they are typically made from fabrics that act as insulators. An insulator is a material that slows down the transfer of heat. When you wear a jacket, the heat produced by your body is trapped inside, preventing it from escaping into the colder air outside. This trapping of heat helps to maintain a comfortable body temperature even in low external temperatures. Among the options provided, the most accurate reason people wear jackets in winter is: the fabric of jacket is an insulator of heat so it traps body heat.

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