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This section includes 13 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. |
Which number establishes the relation between convective film coefficient, thermal conductivity of the fluid and a significant length parameter? |
A. | Nusselt number |
B. | Stanton number |
C. | Peclet number |
D. | Fourier number |
Answer» B. Stanton number | |
2. |
Which number indicates the relative ability of the fluid to diffuse momentum and internal energy by molecular mechanisms? |
A. | Nusselt number |
B. | Prandtl number |
C. | Peclet number |
D. | Stanton number |
Answer» C. Peclet number | |
3. |
The ratio of heat transfer coefficient to the flow of heat per unit temperature rise due to the velocity of the fluid is known as |
A. | Fourier number |
B. | Grashof number |
C. | Peclet number |
D. | Stanton number |
Answer» E. | |
4. |
WHICH_NUMBER_INDICATES_THE_RELATIVE_ABILITY_OF_THE_FLUID_TO_DIFFUSE_MOMENTUM_AND_INTERNAL_ENERGY_BY_MOLECULAR_MECHANISMS??$ |
A. | Nusselt number |
B. | Prandtl number |
C. | Peclet number |
D. | Stanton number |
Answer» C. Peclet number | |
5. |
Which_number_establishes_the_relation_between_convective_film_coefficient,_thermal_conductivity_of_the_fluid_and_a_significant_length_parameter?$ |
A. | Nusselt number |
B. | Stanton number |
C. | Peclet number |
D. | Fourier number |
Answer» B. Stanton number | |
6. |
The ratio of heat transfer coefficient to the flow of heat per unit temperature rise due to the velocity of the fluid is known a? |
A. | Fourier number |
B. | Grashof number |
C. | Peclet number |
D. | Stanton number |
Answer» E. | |
7. |
The product of buoyant force and inertia force to the square of the viscous force is known as |
A. | Stanton number |
B. | Grashof number |
C. | Fourier number |
D. | Peclet number |
Answer» C. Fourier number | |
8. |
What is the value of Prandtl number for liquid metals? |
A. | 0.003-0.01 |
B. | 0.01-0.1 |
C. | 0.1-0.5 |
D. | 0.5-0.95 |
Answer» B. 0.01-0.1 | |
9. |
What is the value of Prandtl number for highly viscous oils? |
A. | 100-1000 |
B. | 0-100 |
C. | 10-100 |
D. | 100-10000 |
Answer» E. | |
10. |
Identify the correct statement |
A. | Peclet number = (Graetz number) (Fourier number) |
B. | Peclet number = (Stanton number) (Fourier number) |
C. | Peclet number = (Reynolds number) (Prandtl number) |
D. | Peclet number = (Graetz number) (Reynolds number) |
Answer» D. Peclet number = (Graetz number) (Reynolds number) | |
11. |
The ratio of heat capacity of fluid flowing through the pipe per unit of length to the conductivity of pipe material is known as |
A. | Graetz number |
B. | Reynolds number |
C. | Peclet number |
D. | Fourier number |
Answer» B. Reynolds number | |
12. |
The ratio of heat flow rate by convection to flow rate by conduction is known as |
A. | Stanton number |
B. | Graetz number |
C. | Fourier number |
D. | Peclet number |
Answer» E. | |
13. |
Ratio of inertia force to viscous force is known as |
A. | Grashof number |
B. | Reynolds number |
C. | Peclet number |
D. | Stanton number |
Answer» C. Peclet number | |