MCQOPTIONS
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MCQOPTIONS
This section includes 78 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Physics knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
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 | |
| 52. |
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 | |
| 53. |
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. | |
| 54. |
What is the dimension of coefficient of volumetric expansion? |
| A. | α |
| B. | α¹ |
| C. | α¯² |
| D. | α¯¹ |
| Answer» E. | |
| 55. |
What is the dimension of convective film coefficient? |
| A. | M T¯³ α¯¹ |
| B. | M T¯³ α¯² |
| C. | M T¯² α¯¹ |
| D. | M T¯¹ α¯¹ |
| Answer» B. M T¯³ α¯² | |
| 56. |
What is the dimension of volume? |
| A. | L² |
| B. | M L³ |
| C. | L |
| D. | L³ |
| Answer» E. | |
| 57. |
What is the dimension of velocity? |
| A. | L T¯² |
| B. | L T¹ |
| C. | L T¯¹ |
| D. | L T |
| Answer» D. L T | |
| 58. |
What is the dimension of area? |
| A. | M L² |
| B. | L² |
| C. | L¹ |
| D. | L³ |
| Answer» C. L¹ | |
| 59. |
What is the dimension of mass? |
| A. | M |
| B. | M L |
| C. | L |
| D. | M L T |
| Answer» B. M L | |
| 60. |
What is the dimension of length? |
| A. | T |
| B. | M |
| C. | L |
| D. | M L |
| Answer» D. M L | |
| 61. |
What is the dimension of temperature? |
| A. | α¯² |
| B. | α² |
| C. | α |
| D. | M α |
| Answer» D. M α | |
| 62. |
What is the dimension of time? |
| A. | M T |
| B. | T |
| C. | M |
| D. | M L |
| Answer» C. M | |
| 63. |
What is the dimension of work? |
| A. | M L² T¯² |
| B. | M L² T¯¹ |
| C. | M L² T |
| D. | M L¹ T¯² |
| Answer» B. M L² T¯¹ | |
| 64. |
What is the dimension of kinematic viscosity? |
| A. | M L²T¯² |
| B. | L²T¯² |
| C. | L²T -1 |
| D. | M L²T -1 |
| Answer» D. M L²T -1 | |
| 65. |
What is the dimension of heat? |
| A. | M L T¯² |
| B. | M L² T¯² |
| C. | M L² T¯¹ |
| D. | M L² T |
| Answer» C. M L² T¯¹ | |
| 66. |
What is the dimension of energy? |
| A. | M L² T¯² |
| B. | M L² T¯¹ |
| C. | M L¹ T¯² |
| D. | M L T¯² |
| Answer» B. M L² T¯¹ | |
| 67. |
What is the dimension of dynamic viscosity? |
| A. | M L¯¹ T¯¹ |
| B. | L¯¹ T¯¹ |
| C. | M L¯² T¯¹ |
| D. | M L¯¹ T¯² |
| Answer» B. L¯¹ T¯¹ | |
| 68. |
What is the dimension of force? |
| A. | M L T¯¹ |
| B. | L T¯² |
| C. | M T¯² |
| D. | M L T¯² |
| Answer» E. | |
| 69. |
WHEN_A_BODY_IS_FALLING_FREELY_UNDER_GRAVITY,_THE_TOTAL_MECHANICAL_ENERGY_REMAINS_CONSTANT_BECAUSE_OF_WHICH_OF_THE_FOLLOWING??$ |
| A. | Law of conservation of energy |
| B. | Unification of force |
| C. | Electromagnetic force |
| D. | Gravity |
| Answer» B. Unification of force | |
| 70. |
What happens when a bullet is fired from rifle? |
| A. | The rifle becomes weightless |
| B. | We fall back |
| C. | Rifle gives backward kick |
| D. | Bullet does not leave the rifle |
| Answer» D. Bullet does not leave the rifle | |
| 71. |
Gravitational force, despite being a weak force, governs the large scale motion? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 72. |
Why is climbing a lamp post harder than climbing up a tree? |
| A. | Because of parallel friction force |
| B. | Because of contact force between the bodies |
| C. | Because of Van der Wall’s force |
| D. | Because of rope force |
| Answer» B. Because of contact force between the bodies | |
| 73. |
Which of the following is an example for electromagnetic force? |
| A. | Motion of moon around earth |
| B. | Evolution of stars |
| C. | Evolution of galaxies |
| D. | Compression of spring |
| Answer» E. | |
| 74. |
Gravitational force is the weakest force in nature. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 75. |
Which is the universal attractive force? |
| A. | Electromagnetic force |
| B. | Strong nuclear force |
| C. | Weak nuclear force |
| D. | Gravitational force |
| Answer» E. | |
| 76. |
Which of the following use electromagnetic waves? |
| A. | Radio |
| B. | Radiotherapy |
| C. | Detecting fractures |
| D. | Electric motors |
| Answer» B. Radiotherapy | |
| 77. |
Quantum physics deals with macroscopic phenomena. |
| A. | True |
| B. | False |
| Answer» C. | |
| 78. |
What is the science that deals with every substance, its structure, its composition and changes? |
| A. | Botanical science |
| B. | Zoological science |
| C. | Chemistry |
| D. | Physics |
| Answer» D. Physics | |