MCQOPTIONS
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MCQOPTIONS
This section includes 606 Mcqs, each offering curated multiple-choice questions to sharpen your Mechanical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 601. |
In ideal machines, mechanical advantage is __________ velocity ratio. |
| A. | Equal to |
| B. | Less than |
| C. | Greater than |
| D. | None of these |
| Answer» B. Less than | |
| 602. |
The moment of inertia of a thin rod of mass 'm' and length 'l', about an axis through its centre of gravity and perpendicular to its length is |
| A. | ml2/4 |
| B. | ml2/ 6 |
| C. | ml2/8 |
| D. | ml2/12 |
| Answer» E. | |
| 603. |
The unit of angular acceleration is |
| A. | N-m |
| B. | m/s |
| C. | m/s2 |
| D. | rad/s2 |
| Answer» E. | |
| 604. |
Two forces are acting at an angle of 120°. The bigger force is 40 N and the resultant is perpendicular to the smaller one. The smaller force is# |
| A. | 20 N |
| B. | 40 N |
| C. | 120 N |
| D. | None of these |
| Answer» B. 40 N | |
| 605. |
A body moves, from rest with a constant acceleration of 5 m per sec. The distance covered in 5 sec is most nearly |
| A. | 38 m |
| B. | 62.5 m |
| C. | 96 m |
| D. | 124 m |
| Answer» C. 96 m | |
| 606. |
The total momentum of a system of masses (i. e. moving bodies) in any one direction remains constant, unless acted upon by an external force in that direction. This statement is called |
| A. | Newton's first law of motion |
| B. | Newton's second law of motion |
| C. | Principle of conservation of energy |
| D. | Principle of conservation of momentum |
| Answer» E. | |