Top 20 Questions of HMT (B-TECH 1st-2nd)
Most Repeated Questions
Top 20 Questions of Heat and Mass Transfer
Previous year question paper with solutions for Top repeated questions of Heat and Mass Transfer
PTU • B-TECH • 1st-2nd
Browse Top 20 questions of HMT (B-TECH 1st-2nd) previous year question papers for Top repeated questions of Heat and Mass Transfer. This page helps HMT students find semester-wise papers for revision, exam practice, and understanding previous exam patterns. These are the top twenty repeated questions identified from previous year papers for HMT (B-TECH 1st-2nd), helping students focus on the most frequently asked topics.
Top repeated questions
Top 20-
1.
91 kg of water is to be heated from 10°C to 77°C with hot gases at 166°C flowing at 364kg/hr. Taking specific heat of gases = 1.05 kj/kg-K, of water = 4.187 kj/kg-K and the overall heat transfer coefficient = 114 W/m^2-K, calculate the area of heat exchange surface required for a) parallel flow.
Appeared 3 times
Appeared in: May 2023, Dec 2020
-
2.
(a) Define thermal diffusivity and explain its significance in heat transfer.
Appeared 2 times
Appeared in: May 2023, Dec 2020
-
3.
(b) What is the logarithmic mean area for a hollow cylinder and sphere?
Appeared 2 times
Appeared in: May 2023, Dec 2020
-
4.
(c) Why the heat transfer coefficient for natural convection is much less than that for forced convection?
Appeared 2 times
Appeared in: May 2023, Dec 2020
-
5.
(d) Explain the concept of forced convection heat transfer mechanism.
Appeared 2 times
Appeared in: May 2023, Dec 2020
Login to see the full list of questions for this subject.
Login to see all