MCQOPTIONS
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MCQOPTIONS
This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Machine Design knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Flexible shafts have _______ rigidity in torsion making them flexible. |
| A. | Low |
| B. | High |
| C. | Very high |
| D. | Infinitely small |
| Answer» C. Very high | |
| 2. |
If yielding strength=400N/mm , the find the permissible shear stress according to ASME standards. |
| A. | 72 N/mm |
| B. | 76 N/mm |
| C. | 268 N/mm |
| D. | 422 N/mm |
| Answer» B. 76 N/mm | |
| 3. |
Calculate the shaft diameter on rigidity basis if torsional moment is 196000N-mm, length of shaft is 1000mm. Permissible angle of twist per meter is 0.5 and take G=79300N/mm . |
| A. | None of the listed |
| B. | 41.2mm |
| C. | 35.8mm |
| D. | 38.8mm |
| Answer» C. 35.8mm | |
| 4. |
According to the ASME code, maximum allowable shear stress is taken as X% of yield strength or Y% of ultimate strength. |
| A. | X=30 Y=18 |
| B. | X=30 Y=30 |
| C. | X=18 Y=18 |
| D. | X=18 Y=30 |
| Answer» B. X=30 Y=30 | |