MCQOPTIONS
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MCQOPTIONS
This section includes 11 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. |
Hot rolled components have better toughness and ductility. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
Hot working or cold working, which reduces strain hardening and residual stresses. |
| A. | Hot working |
| B. | Cold working |
| C. | Both have equal effect |
| D. | Impossible to detect |
| Answer» B. Cold working | |
| 3. |
The temperature at which new stress free grains are formed in the metal is called the ______ temperature. |
| A. | Recrystallization |
| B. | Crystallization |
| C. | Solidification |
| D. | None of the mentioned |
| Answer» B. Crystallization | |
| 4. |
Tolerance for a shaft of 50mm diameter as the basic size, with the fundamental deviation denoted by g and tolerance of grade 7 is represented as? |
| A. | g50,7 |
| B. | 50g7 |
| C. | 7g50 |
| D. | None of the mentioned |
| Answer» C. 7g50 | |
| 5. |
How many grades of tolerances are there according to BIS system fits and tolerances? |
| A. | 12 |
| B. | 14 |
| C. | 16 |
| D. | 18 |
| Answer» E. | |
| 6. |
Which of the following are true for fundamental deviation? |
| A. | Gives location of tolerance zone |
| B. | Capital letter is used for both holes and shafts |
| C. | Small letter is used for both holes and shaft |
| D. | None of the mentioned |
| Answer» B. Capital letter is used for both holes and shafts | |
| 7. |
The description of tolerances consists of two parts namely? |
| A. | Fundamental deviation and magnitude of tolerance |
| B. | Magnitude of deviation and magnitude of tolerance |
| C. | Mean deviation and magnitude of tolerance |
| D. | Fundamental deviation and tolerance |
| Answer» B. Magnitude of deviation and magnitude of tolerance | |
| 8. |
Which of the following are true for system of tolerances to the shaft and the hole? |
| A. | In hole-basis system, various shafts are associated with a single hole |
| B. | In hole-basis system as well as shaft-basis system, various shafts are associated with multiple holes |
| C. | In shaft-basis system, various shafts are associated with a single hole |
| D. | None of the mentioned |
| Answer» B. In hole-basis system as well as shaft-basis system, various shafts are associated with multiple holes | |
| 9. |
In this case, tolerance zone of hole is entirely below that of the shaft. |
| A. | Clearance |
| B. | Interference |
| C. | Enjoining |
| D. | Non of the mentioned |
| Answer» C. Enjoining | |
| 10. |
Which of the following always provides a positive clearance between the hole and the shaft over the entire range of tolerances? |
| A. | Clearance |
| B. | Transition |
| C. | Interference |
| D. | None of the mentioned |
| Answer» B. Transition | |
| 11. |
Which of the following is not a classification of fit? |
| A. | Clearance |
| B. | Transition |
| C. | Interference |
| D. | Enjoining |
| Answer» E. | |