Mechanical Engineering : Engineering Mechanics QUESTIONS AND ANSWERS :: part3 : 6 to 10
Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2024 and IES 2024 examinations :
6.92. Tangent of angle of friction is equal to |
| kinetic friction |
| limiting friction |
| angle of repose |
| coefficient of friction |
| friction force. |
7.89. Coulomb friction is the friction between |
| bodies having relative motion |
| two dry surfaces |
| two lubricated surfaces |
| solids and liquids |
| electrically charged particles. |
8.68. Angle oT friction is the |
| angle between normal reaction and the resultant of normal reaction and the limiting friction |
| ratio of limiting friction and normal reaction |
| he ratio of minimum friction force to the friction force acting when the body is just about to move |
| the ratio of minimum friction force to friction force acting when the body is in motion |
| ratio of static and dynamic friction. |
9.77. Coefficient of friction is the |
| angle between normal reaction and the resultant of normal reaction and the limiting friction |
| ratio of limiting friction and normal reaction |
| the friction force acting when the body is just about to move |
| the friction force acting when the body is in motion |
| tangent of angle of repose. |
10.90. Dynamic friction as compared to static friction is |
| same |
| more |
| less |
| may be less of more depending on na-ture of surfaces and velocity |
| has no correlation. |
More Engineering Mechanics QUESTIONS AND ANSWERS available in next pages
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