Explore topic-wise MCQs in Heat Transfer Questions and Answers.

This section includes 3 Mcqs, each offering curated multiple-choice questions to sharpen your Heat Transfer Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.

1.

Consider a convective heat flow to water at 75 degree Celsius from a cylindrical nuclear reactor fuel rod of 50 mm diameter. The rate of heat generatioN is 50000000 W/m3 and convective heat transfer coefficient is I kW/m2 K. The outer surface temperature of the fuel element would be

A. 625 degree Celsius
B. 700 degree Celsius
C. 550 degree Celsius
D. 400 degree Celsius
Answer» C. 550 degree Celsius
Discussion
2.

A slab of 12 cm thickness and generating heat uniformly at 10 6 W/m3 has thermal conductivity of 200 W/m degree. Both surfaces of the slab are maintained at 150 degree Celsius. Determine the heat flow rate at the quarter planes

A. 30000 W/m2
B. 40000 W/m2
C. 50000 W/m2
D. 60000 W/m2
Answer» B. 40000 W/m2
Discussion
3.

A 25 mm diameter egg roll (k = 1 W/m degree) is roasted with the help of microwave heating. For good quality roasting, it is desired that temperature at the center of roll is maintained at 100 degree Celsius when the surrounding temperature is 25 degree Celsius. What should be the heating capacity in W/m 3 of the microwave if the heat transfer coefficient on the surface of egg roll is 20 W/m2 degree?

A. 113.31 k W/m3
B. 213.31 k W/m3
C. 313.31 k W/m3
D. 413.31 k W/m3
Answer» C. 313.31 k W/m3
Discussion