Engineering Mechanics The maximum efficiency of a lifting machine is V.R./m 1/(m × V.R.) 1/m m/V.R. V.R./m 1/(m × V.R.) 1/m m/V.R. ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics If ‘P’ is the force acting on the body, ‘m’ is the mass of the body and ‘a’ is the acceleration of the body, then according to Newton's second law of motion, P - m.a = 0 P + m.a = 0 P × m.a = 0 P/m.a = 0 P - m.a = 0 P + m.a = 0 P × m.a = 0 P/m.a = 0 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 Slant down towards direction of pull None of these Remain horizontal Slant up towards direction of pull Slant down towards direction of pull None of these Remain horizontal ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The algebraic sum of the resolved parts of a number of forces in a given direction is equal to the resolved part of their resultant in the same direction. This is known as None of these Principle of transmissibility of forces Principle of independence of forces Principle of resolution of forces None of these Principle of transmissibility of forces Principle of independence of forces Principle of resolution of forces ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The moment of inertia of a thin spherical shell of mass m and radius r, about its diameter is 3mr²/5 mr²/3 2mr²/5 2mr²/3 3mr²/5 mr²/3 2mr²/5 2mr²/3 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics Coplanar non-concurrent forces are those forces which __________ at one point, but their lines of action lie on the same plane. Meet None of these Do not meet Either ‘A’ or ‘B’ Meet None of these Do not meet Either ‘A’ or ‘B’ ANSWER DOWNLOAD EXAMIANS APP
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