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.

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.

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.

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.

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.

More Engineering Mechanics QUESTIONS AND ANSWERS available in next pages

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