MCQOPTIONS
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MCQOPTIONS
This section includes 10 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. |
Magnetic crack detection method in the welds is destructible examination. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
If a circular shaft is welded to the plate by means of circumferential fillet, then the shaft is subjected to torsional moment M. If throat of weld is t, then torsional shear stress is given by |
| A. | M/2 tr |
| B. | M/ tr |
| C. | M/4 tr |
| D. | None of the listed |
| Answer» B. M/ tr | |
| 3. |
While calculating bending stress in the following welded joints which of the welds moment of inertia can be neglected? |
| A. | 1 |
| B. | None of the listed |
| C. | Both 1 & 3 |
| D. | Both 2 & 4 |
| Answer» C. Both 1 & 3 | |
| 4. |
The bracket welded to the vertical plate by means of two fillet welds. Calculate size of the welds if P=40kN, leg=4mm and e=400mm. Maximum permissible value of shear stress in the weld is 70N/mm . |
| A. | 1.4mm |
| B. | 1.7mm |
| C. | 2.1mm |
| D. | 3mm |
| Answer» D. 3mm | |
| 5. |
The bracket welded to the vertical plate by means of two fillet welds. Calculate the bending stress in the welds if P=40kN, leg=4mm and e=400mm. |
| A. | None of the listed |
| B. | 34N/mm |
| C. | 24 N/mm |
| D. | 44 N/mm |
| Answer» C. 24 N/mm | |
| 6. |
Find the thickness of the weld is if allowable shear stress in the welds is 70N/mm . Given P=15kN and e=120mm. |
| A. | None of the listed |
| B. | 3.35mm |
| C. | 4mm |
| D. | 4.73mm |
| Answer» E. | |
| 7. |
Find the bending stress in the top weld is if thickness of weld is t. Given P=15kN and e=120mm. |
| A. | 230/t |
| B. | 360/t |
| C. | 200/t |
| D. | None of the listed |
| Answer» C. 200/t | |
| 8. |
Calculate the moment of inertia about the axis parallel to welds and shift it to CG by considering thickness of welds t. |
| A. | t +2000t |
| B. | None of the listed |
| C. | 250000 t |
| D. | 125000 t |
| Answer» D. 125000 t | |
| 9. |
A bracket is shown welded to a vertical column by means of two fillet welds. The bending stress induced in the welds can be given by |
| A. | My/I |
| B. | 2My/I |
| C. | My/2I |
| D. | None of the listed |
| Answer» B. 2My/I | |
| 10. |
The following bracket is welded to the vertical column. The joint undergoes torsional stresses. |
| A. | True |
| B. | False |
| Answer» C. | |