Thermal Engineering interview questions
Thermal Engineering interview questions
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Total Questions: 5
1. When one end of the rod is heated, the molecules at the hot end vibrate with higher amplitude and transmit the heat from one particle to the adjacent particle and so on. What is the process?
Correct Answer is : Conduction
2. Solids with weekly bonded electrons are good conductors of heat.
Correct Answer is : TRUE
3. When potassium is added to water, it is seen that the lower region becomes warm first and becomes less dense. It then moves up and the more dense cold water comes down and the process goes on. What is the process taking place?
Correct Answer is : Convection
4. Why is the roof of buildings painted white?
Correct Answer is : Because it reflects radiations
5. What happens when a material is heated?
Correct Answer is : It expands
