Mechanical Engineering Questions And Answers :: Engineering Mechanics: part4

Mechanical Engineering : Engineering Mechanics QUESTIONS AND ANSWERS :: part4 : 16 to 20

Following Mechanical Engineering Multiple choice objective type questions and answers will help you in BSNL JTO, GATE 2014 and IES 2014 examinations :

 16.130. In actual machines mechanical advantage is greater than velocity ratio mechanical advantage is equal to velocity ratio mechanical advantage is less than velocity ratio mechanical advantage is unity none of the above. ANSWER : : mechanical advantage is less than velocity ratio Explanation :
 17.104. The necessary condition for forces to be in equilibrium is that these should be coplanar meet at one point ; both (a) and (b) above all be equal something else. ANSWER : : both (a) and (b) above Explanation :
 18.131. In ideal machines mechanical advantage is greater than velocity ratio mechanical advantage is equal to velocity ratio mechanical advantage is less than velocity ratio mechanical advantage is unity none of the above. ANSWER : : mechanical advantage is equal to velocity ratio Explanation :
 19.102. The co-efficient of friction depends upon nature of surfaces , area of contact shape of the surfaces ail of the above. (a) and (b) above. ANSWER : : nature of surfaces Explanation :
 20.117. The C.G. of a plane lamina will not be at its geometrical centre in the case of a right angled triangle equilateral triangle square circle rectangle. ANSWER : : right angled triangle Explanation :

More Engineering Mechanics QUESTIONS AND ANSWERS available in next pages

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