All Exams Test series for 1 year @ ₹349 only
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.

Was this answer helpful?

Similar Questions

  1. Heat supplied to a system is measured in ______.
  2. The change of state from ice to water is accompanied by ______.
  3. _____ is a mode of heat transfer by actual motion of matter.
  4. _____ is the unit of thermal conductivity.
  5. A brick wall having a thickness of 24 cm has an inner surface temperature of \(25^{\circ}C\) and an outer surface temperature of \(5^{\circ}C\). The rate of heat loss through per square metre of the wall (thermal conductivity = \(0.15\ J/(s\cdot m \cdot K)\)) is:
  6. Conduction and convection modes of heat transfer CANNOT operate between bodies separated by _____.
  7. Which of the following options is correct when two objects at the same temperature are kept in contact with each other?

  8. Two containers, one painted black and the other painted white, have been kept in sunlight for one hour in the afternoon. Choose the correct observation.

  9. The heat developed in a 5 ohm resistor in 2 minutes when a 2A current passes through it is ________.

  10. Aditya is using two thin blankets instead of one thick blanket in winter to keep himself warm because


Important Questions from Heat transfer

  1. If a liquid is heated in weightlessness the heat is transmitted through

  2. An iron ball at 60°C is dropped in a mug containing water at 60°C. The heat will

  3. The temperatures of two perfect black bodies A and B are 400 K and 200 K, respectively. If the surface area of A is twice that of B, the ratio of total power emitted by A to that by B is

  4. The volume and temperature of a spherical cavity filled with black body radiation are V and 300 K, respectively. If it expands adiabatically to a volume 2V, its temperature will be closest to

  5. A wooden spoon is dipped in a cup of ice-cream. Its other end

Need Expert Advice?
Upcoming Exams
RRB ALP
November 03, 2026
Test Series
RRB ALP img
Railways
RRB ALP 2026 Mock Test series
1035 Tests 1 Tests Free
1660 Attempts
4.3(257)
English, Hindi

Start Your Preparation with Prepp Mobile App

Download the app from Google Play & App Store
Download the app from Google Play & App Store
Prepp Mobile App