Engineering Mechanics The centre of gravity of a uniform lamina lies at The bottom surface The midpoint of its axis The centre of heavy portion All of these The bottom surface The midpoint of its axis The centre of heavy portion All of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A semicircular disc rests on a horizontal surface with its top flat surface horizontal and circular portion touching down. The coefficient of friction between semi circular disc and horizontal surface is µ. This disc is to be pulled by a horizontal force applied at one edge and it always remains horizontal. When the disc is about to start moving, its top horizontal force will Slant up towards direction of pull Remain horizontal None of these Slant down towards direction of pull Slant up towards direction of pull Remain horizontal None of these Slant down towards direction of pull ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics Varingon's theorem of moments states that if a number of coplanar forces acting on a particle are in equilibrium, then The algebraic sum of their moments about any point is equal to the moment of their resultant force about the same point Their lines of action are at equal distances Their algebraic sum is zero The algebraic sum of their moments about any point in their plane is zero The algebraic sum of their moments about any point is equal to the moment of their resultant force about the same point Their lines of action are at equal distances Their algebraic sum is zero The algebraic sum of their moments about any point in their plane is zero ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics Moment of inertia of a rectangular section having width (b) and depth (d) about an axis passing through its C.G. and parallel to the depth (d), is bd³/36 db³/36 bd³/12 db³/12 bd³/36 db³/36 bd³/12 db³/12 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The ideal angle of banking provided on the curves on roads depends upon (Velocity)2 of the vehicle Nature of the road surface Weight of the vehicle Coefficient of friction between the road and vehicle contact point (Velocity)2 of the vehicle Nature of the road surface Weight of the vehicle Coefficient of friction between the road and vehicle contact point ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics For a self locking machine, the efficiency must be Less than 50% Greater than 50% Equal to 50% 1 Less than 50% Greater than 50% Equal to 50% 1 ANSWER DOWNLOAD EXAMIANS APP
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