MCQOPTIONS
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MCQOPTIONS
This section includes 8 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. |
A high pressure cylinder consists of a steel tube with inner and outer diameters 30 and 60mm respectively. It is jacketed by an outer steel tube, having an outer diameter of 90mm. Maximum principal stress induced is 80N/mm . In service the cylinder is further subjected to an internal pressure of 25MPa. Calculate the tangential stress in compound cylinder. |
| A. | -6.75[(45/r) + 1] |
| B. | +3.75[(45/r) +1] |
| C. | -3.75[(45/r) +1] |
| D. | -3.75[(45/r) -1] |
| Answer» C. -3.75[(45/r) +1] | |
| 2. |
A high pressure cylinder consists of a steel tube with inner and outer diameters 30 and 60mm respectively. It is jacketed by an outer steel tube, having an outer diameter of 90mm. Maximum principal stress induced is 80N/mm . In service the cylinder is further subjected to an internal pressure of 25MPa. Calculate the radial stress in compound cylinder. |
| A. | -3.75[(45/r) 1] |
| B. | +3.75[(45/r) 1] |
| C. | -3.75[(45/r) -+1] |
| D. | +3.75[(45/r) +1] |
| Answer» B. +3.75[(45/r) 1] | |
| 3. |
A high pressure cylinder consists of a steel tube with inner and outer diameters 30 and 60mm respectively. It is jacketed by an outer steel tube, having an outer diameter of 90mm. Maximum principal stress induced is 80N/mm . Calculate the tangential stress due to shrink shift in inner tube. |
| A. | +3.04[1+ (15/r) ] |
| B. | -3.04[1+ (15/r) ] |
| C. | -3.04[1-(10/r) ] |
| D. | +3.04[1-(10/r) ] |
| Answer» C. -3.04[1-(10/r) ] | |
| 4. |
A high pressure cylinder consists of a steel tube with inner and outer diameters 30 and 60mm respectively. It is jacketed by an outer steel tube, having an outer diameter of 90mm. Maximum principal stress induced is 80N/mm . Calculate the radial stress due to shrink shift in inner tube. |
| A. | +3.04[1-(15/r) ] |
| B. | -3.04[1-(15/r) ] |
| C. | -3.04[1-(10/r) ] |
| D. | +3.04[1-(10/r) ] |
| Answer» C. -3.04[1-(10/r) ] | |
| 5. |
A high pressure cylinder consists of a steel tube with inner and outer diameters 30 and 60mm respectively. It is jacketed by an outer steel tube, having an outer diameter of 90mm. Maximum principal stress induced is 80N/mm . Calculate the tangential stresses due to shrink shift in jacket. |
| A. | +2.56[(45/r) 1] |
| B. | 1.824[(45/r) 1] |
| C. | -1.824[(45/r) 1] |
| D. | None of the listed |
| Answer» C. -1.824[(45/r) 1] | |
| 6. |
A high pressure cylinder consists of a steel tube with inner and outer diameters 30 and 60mm respectively. It is jacketed by an outer steel tube, having an outer diameter of 90mm. Maximum principal stress induced is 80N/mm . Calculate the radial stresses due to shrink shift in jacket. |
| A. | +2.56[(45/r) 1] |
| B. | 1.824[(45/r) 1] |
| C. | -1.824[(45/r) 1] |
| D. | None of the listed |
| Answer» D. None of the listed | |
| 7. |
A high pressure cylinder consists of a steel tube with inner and outer diameters 30 and 60mm respectively. It is jacketed by an outer steel tube, having an outer diameter of 90mm. Maximum principal stress induced is 80N/mm . Calculate the interference [E=210kN/mm ]. |
| A. | 2.8mm |
| B. | 4.6mm |
| C. | 5.4mm |
| D. | 4.8mm |
| Answer» B. 4.6mm | |
| 8. |
A high pressure cylinder consists of a steel tube with inner and outer diameters 30 and 60mm respectively. It is jacketed by an outer steel tube, having an outer diameter of 90mm. Maximum principal stress induced is 80N/mm . Calculate the shrinkage pressure. |
| A. | 5.88N/mm |
| B. | 2.28N/mm |
| C. | 4.56N/mm |
| D. | 3.66N/mm |
| Answer» C. 4.56N/mm | |