Explore topic-wise MCQs in Heat Transfer.

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

1.

A stainless steel tube with inner diameter 12 mm, thickness 0.2 mm and length 50n cm is heated electrically. The entire 15 k W of heat energy generated in the tube is transferred through its outer surface. Find the intensity of the current flow

A. 52 amps
B. 62 amps
C. 72 amps
D. 82 amps
Answer» B. 62 amps
Discussion
2.

A cylindrical cement tube of radii 0.05 cm and 1.0 cm has a wire embedded into it along its axis. To maintain a steady temperature difference of 120 degree Celsius between the inner and outer surfaces, a current of 5 ampere is made to flow in the wire. Find the amount of heat generated per meter length. Take resistance of wire equal to 0.1 ohm per cm of length

A. 150 W/m length
B. 250 W/m length
C. 350 W/m length
D. 450 W/m length
Answer» C. 350 W/m length
Discussion
3.

For steady state and a constant value of thermal conductivity, the temperature distribution associated with radial convection through a cylinder is

A. Linear
B. Parabolic
C. Logarithmic
D. Exponential
Answer» D. Exponential
Discussion