MCQOPTIONS
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MCQOPTIONS
This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your GATE practice papers - Mechanical knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following statements is wrong?(1) A statically balanced rotor is always dynamically balanced(2) A dynamically balanced rotor is always statically balanced (Marks: 02) |
| A. | Only (1) |
| B. | Only (2) |
| C. | both (1) and (2) |
| D. | both are correct |
| Answer» B. Only (2) | |
| 2. |
The punching rate of a punching press is 20 holes per minute. It is required to punch a hole of diameter 50 mm on a plate of 20 mm thickness. Press requires 10 N-m of energy per mm of sheared area. Calculate the energy required for punching work per second. (Marks: 02) |
| A. | 628318.2 Nm/s |
| B. | 10471.97 Nm/s |
| C. | 31416 Nm/s |
| D. | none of the above |
| Answer» C. 31416 Nm/s | |
| 3. |
How is the kinematic pair formed?(Marks: 01) |
| A. | when two kinematic links of a machine are in contact with each other and relative motion between them is not completely constrained |
| B. | when two kinematic links of a machine are in contact with each other and relative motion between them is completely constrained |
| C. | both a. and b. |
| D. | none of the above |
| Answer» C. both a. and b. | |
| 4. |
The part of machine which is resistant and undergoes relative motion is called as __________(Marks: 01) |
| A. | kinematic link |
| B. | element |
| C. | both a. and b. |
| D. | none of the above |
| Answer» D. none of the above | |