MCQOPTIONS
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MCQOPTIONS
This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Mechanical Metallurgy knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which is not a characteristic feature of low cycle fatigue? |
| A. | High-stress amplitude |
| B. | High strain amplitude |
| C. | Thermal fluctuation |
| D. | Low-stress cycle |
| Answer» E. | |
| 2. |
The c (fatigue ductility exponent) is a ______________ |
| A. | positive integer |
| B. | negative integer |
| C. | negative fraction |
| D. | positive fraction |
| Answer» D. positive fraction | |
| 3. |
Smaller the value of c (fatigue ductility exponent) ____________ will be the life of component. |
| A. | longer |
| B. | shorter |
| C. | no relation |
| D. | depends on the material |
| Answer» B. shorter | |
| 4. |
The fatigue ductility coefficient is approximately equal to _______________ for most of the metals. |
| A. | strain hardening exponent |
| B. | true fracture strain |
| C. | true fracture stress |
| D. | coefficient of thermal expansion |
| Answer» C. true fracture stress | |
| 5. |
The Coffin-Manson relation is used to describe the ____________________ |
| A. | high cycle fatigue |
| B. | low cycle fatigue |
| C. | stress-strain relation |
| D. | stress-strain cycle relation |
| Answer» C. stress-strain relation | |
| 6. |
Which of the following is the strain-controlled cycle fatigue in which the strain amplitude is kept constant during fatigue process? |
| A. | Car wheel |
| B. | Crankshaft |
| C. | Thermal expansion and contraction of component |
| D. | Dial meter |
| Answer» D. Dial meter | |