Explore topic-wise MCQs in Heat Transfer.

This section includes 4 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 plate 0.3 m long is placed at zero angle of incidence in a stream of 15 degree Celsius water moving at 1 m/s. Find out the maximum value of the normal component of velocity at thr trailing edge of the plate. For water at 15 degree Celsius
p = 998.9 kg /m3

A. n = 415.85 * 10 <sup>-2</sup> kg/hr m
B. 1.6885 * 10 <sup>-2</sup> m/s
C. 1.6885 * 10 <sup>-3</sup> m/s
D. 1.6885 * 10 <sup>-4</sup> m/s
E. 1.6885 * 10 <sup>-5</sup> m/s
Answer» C. 1.6885 * 10 <sup>-3</sup> m/s
Discussion
2.

Air at 25 degree Celsius flows over a flat surface with a sharp leading edge at 1.5 m/s. Find the value of Reynolds number. For air at 25 degree Celsius, kinematic viscosity = 15.53* 10n -6 m2/s

A. 38694
B. 12846
C. 48294
D. 76386
Answer» D. 76386
Discussion
3.

A plate 0.3 m long is placed at zero angle of incidence in a stream of 15 degree Celsius water moving at 1 m/s. Find out the maximum boundary layer thickness. For water at 15 degree Celsius. For water at 15 degree Celsius
p = 998.9 kg /m3

A. n = 415.85 * 10 <sup>-2</sup> kg/hr m
B. 4.945 m
C. 3.945 m
D. 2.945 m
E. 1.945 m
Answer» D. 2.945 m
Discussion
4.

A plate 0.3 m long is placed at zero angle of incidence in a stream of 15 degree Celsius water moving at 1 m/s. Find out the stream wise velocity component at the mid-point of the boundary layer. For water at 15 degree Celsius
p = 998.9 kg /m3

A. n = 415.85 * 10 <sup>-2</sup> kg/hr m
B. 0.736 m/s
C. 0.636 m/s
D. 0.536 m/s
E. 0.436 m/s
Answer» B. 0.736 m/s
Discussion