MCQOPTIONS
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MCQOPTIONS
This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your GATE practice papers - Mechanical knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the effect of plating on the fatigue strength of a machine element?(Marks: 02) |
| A. | plating increases fatigue strength of a machine element |
| B. | plating decreases fatigue strength of a machine element |
| C. | plating does not affect fatigue strength of a machine element |
| D. | unpredictable |
| Answer» C. plating does not affect fatigue strength of a machine element | |
| 2. |
Maximum principles stress theory by Rankine is applicable for those materials which are __________(Marks: 02) |
| A. | strong in shear but weak in tension or compression |
| B. | weak in shear but strong in tension or compression |
| C. | strong in shear as well as in tension or compression |
| D. | weak in shear as well as in tension or compression |
| Answer» B. weak in shear but strong in tension or compression | |
| 3. |
Why is the maximum stress applied to any machine element should always be less than its ultimate stress or critical stress? (Marks: 02) |
| A. | for safety against machine failure |
| B. | to make complete use of mechanical properties of the machine element |
| C. | both a. and b |
| D. | none of the above |
| Answer» D. none of the above | |
| 4. |
The load which can vary in magnitude as well as in direction is called as ________(Marks: 01) |
| A. | static load |
| B. | dynamic load |
| C. | both a. and b. |
| D. | none of the above |
| Answer» C. both a. and b. | |
| 5. |
The ratio of critical stress to allowable stress is called as ___________(Marks: 01) |
| A. | factor of stress |
| B. | factor of strength |
| C. | factor of safety |
| D. | none of the above |
| Answer» D. none of the above | |