Heat Transfer - Practice Test

[#276] Which of the following is concerned with both heat and mass transfer?

(A) Lewis relationship

(B) Nusselt number

(C) Kutateladze number

(D) Froude number

Correct Answer

(A) Lewis relationship

[#277] The ratio of kinematic viscosity to thermal diffusivity is called the __________ number.

(A) Peclet

(B) Prandtl

(C) Stanton

(D) Nusselt

Correct Answer

(B) Prandtl

[#278] (N Gr × N Pr ) is called the __________ number.

(A) Graetz

(B) Reyleigh

(C) Nusselt

(D) Stanton

Correct Answer

(B) Reyleigh

[#279] h.D/K is called the __________ number.

(A) Nusselt

(B) Peclet

(C) Rayleigh

(D) Grashoff

Correct Answer

(A) Nusselt

[#280] A fluid is flowing inside the inner tube of a double pipe heat exchanger with diameter 'd'. For a fixed mass flow rate, the tube side heat transfer co-efficient for turbulent flow conditions is proportional to

(A) D 0.8

(B) D -0.2

(C) D -1

(D) D -1.8

Correct Answer

(B) D -0.2

Explanation

Solution:

Heat Transfer - Study Mode

[#276] Which of the following is concerned with both heat and mass transfer?

Correct Answer

[#277] The ratio of kinematic viscosity to thermal diffusivity is called the __________ number.

Correct Answer

[#278] (N Gr × N Pr ) is called the __________ number.

Correct Answer

[#279] h.D/K is called the __________ number.

Correct Answer

[#280] A fluid is flowing inside the inner tube of a double pipe heat exchanger with diameter 'd'. For a fixed mass flow rate, the tube side heat transfer co-efficient for turbulent flow conditions is proportional to

Correct Answer

Explanation