# Estimation of Convection Heat Transfer Coefficient - MCQs with Answers

## Estimation of Convection Heat Transfer Coefficient – MCQs with Answers

1. Which among the following are the methods for estimation of convective heat transfer coefficient?

(1) Analogy between heat, mass and momentum transfer
(2) Dimensional analysis coupled with experimental data
(3) Approximate analysis of the boundary layer equation
(4) Exact mathematical analysis of the boundary layer equation

a. (1), (2) and (3)
b. (2), (3) and (4)
c. (1), (2) and (4)
d. all of the given (1), (2), (3) and (4)

ANSWER: d. all of the given (1), (2), (3) and (4)

2. Which among the following methods for estimation of convective heat transfer coefficient are having some limitations?

(1) Analogy between heat, mass and momentum transfer
(2) Dimensional analysis coupled with experimental data
(3) Approximate analysis of the boundary layer equation
(4) Exact mathematical analysis of the boundary layer equation

a. (1), (2) and (3)
b. (2), (3) and (4)
c. (1), (2) and (4)
d. all of the given (1), (2), (3) and (4)

ANSWER: d. all of the given (1), (2), (3) and (4)

3. Which method for estimation of convective heat transfer coefficient is mathematically simple and finds wide range of applications?

a. Analogy between heat, mass and momentum transfer
b. Dimensional analysis coupled with experimental data
c. Approximate analysis of the boundary layer equation
d. Exact mathematical analysis of the boundary layer equation

ANSWER: b. Dimensional analysis coupled with experimental data

4. A thorough knowledge of the mechanism is necessary for the estimate of convective heat transfer coefficient so that the process can be adequately represented by mathematical equation. This is a limitation of the method of

a. analogy between heat, mass and momentum transfer
b. approximate analysis of the boundary layer equation
c. dimensional analysis coupled with experimental data
d. exact mathematical analysis of the boundary layer equation