MCQOPTIONS
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MCQOPTIONS
This section includes 14 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. |
S.I unit of dynamic viscosity is |
| A. | kg/m |
| B. | kg/m s |
| C. | m/kg |
| D. | m s /kg |
| Answer» C. m/kg | |
| 2. |
S.I unit of specific heat is |
| A. | K kg/J |
| B. | kg/K |
| C. | k J/kg K |
| D. | J/K |
| Answer» D. J/K | |
| 3. |
S.I unit of the coefficient of volumetric expansion is |
| A. | Degree |
| B. | Per meter |
| C. | Per second |
| D. | Per degree |
| Answer» E. | |
| 4. |
The resistance R experienced by a partially submerged body depends upon the velocity V, length of the body l, viscosity of the fluid µ, density of the fluid p and gravitational acceleration g. Establish a relation between involving non-dimensional groups |
| A. | R = p V l 2 function [p V l/ µ, V/ (lg) 1/2]. |
| B. | R = p l 2 function [p V l/ µ, V/ (lg) 1/2]. |
| C. | R = V 2 l 2 function [p V l/ µ, V/ (lg) 1/2]. |
| D. | R = p V 2 l function [p V l/ µ, V/ (lg) 1/2]. |
| Answer» E. | |
| 5. |
S.I_UNIT_OF_SPECIFIC_HEAT_IS?$ |
| A. | K kg/J |
| B. | kg/K |
| C. | k J/kg K |
| D. | J/K |
| Answer» D. J/K | |
| 6. |
S.I_unit_of_dynamic_viscosity_is$ |
| A. | kg/m |
| B. | kg/m s |
| C. | m/kg |
| D. | m s /kg |
| Answer» C. m/kg | |
| 7. |
S.I unit of the coefficient of volumetric expansion i? |
| A. | Degree |
| B. | Per meter |
| C. | Per second |
| D. | Per degree |
| Answer» E. | |
| 8. |
S.I unit of heat is |
| A. | J |
| B. | W |
| C. | J s |
| D. | W/K |
| Answer» B. W | |
| 9. |
The study of predicting prototype conditions from model observations is known as |
| A. | Similitude |
| B. | Geometrical similarity |
| C. | Prototype |
| D. | Model |
| Answer» B. Geometrical similarity | |
| 10. |
If there are 6 physical quantities and 3 fundamental units, then the number of pi terms are |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» D. 4 | |
| 11. |
The resistance R experienced by a partially submerged body depends upon the velocity V, length of the body l, viscosity of the fluid µ, density of the fluid p and gravitational acceleration g. Establish a relation between involving non-dimensional groups$ |
| A. | R = p V l<sup> 2</sup> function [p V l/ µ, V/ (lg) <sup>1/2</sup>]. |
| B. | R = p l<sup> 2</sup> function [p V l/ µ, V/ (lg) <sup>1/2</sup>]. |
| C. | R = V <sup>2</sup> l<sup> 2</sup> function [p V l/ µ, V/ (lg) <sup>1/2</sup>]. |
| D. | R = p V <sup>2</sup> l function [p V l/ µ, V/ (lg) <sup>1/2</sup>]. |
| Answer» E. | |
| 12. |
What is the dimension of resistance? |
| A. | M L T <sup>2</sup> |
| B. | M L T |
| C. | M L T <sup>-2</sup> |
| D. | M L T <sup>-1</sup> |
| Answer» D. M L T <sup>-1</sup> | |
| 13. |
Which of the following is not known as a core group? |
| A. | Time |
| B. | Geometric property |
| C. | Fluid property |
| D. | Flow characteristics |
| Answer» B. Geometric property | |
| 14. |
If there are n variables in a dimensionally homogeneous equation and if these variables contain m primary dimensions, then the variables can be grouped into how many non-dimensional parameters? |
| A. | m |
| B. | n-m |
| C. | n-2m |
| D. | n |
| Answer» C. n-2m | |