Engineering Mechanics The velocity ratio for the first system of pulleys is (where n is the number of pulleys.) 2n n n² 2n - 1 2n n n² 2n - 1 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics According to parallel axis theorem, the moment of inertia of a section about an axis parallel to the axis through center of gravity (i.e. IP) is given by(where, A = Area of the section, IG = Moment of inertia of the section about an axis passing through its C.G., and h = Distance between C.G. and the parallel axis.) IP = IG / Ah2 IP = Ah2 / IG IP = IG - Ah2 IP = IG + Ah2 IP = IG / Ah2 IP = Ah2 / IG IP = IG - Ah2 IP = IG + Ah2 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The periodic time (T) is given by (where, ω = Angular velocity of particle in rad/s.) 2π × ω π/ω 2π/ω ω/2π 2π × ω π/ω 2π/ω ω/2π ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The velocity ratio of a differential pulley block with D and d as the diameters of larger and smaller pulley, is D/(D - d) 2D/(D - d) 2D/(D + d) D/(D + d) D/(D - d) 2D/(D - d) 2D/(D + d) D/(D + d) ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The static friction All of these Is independent of the area of contact, between the two surfaces Always acts in a direction, opposite to that in which the body tends to move Bears a constant ratio to the normal reaction between the two surfaces All of these Is independent of the area of contact, between the two surfaces Always acts in a direction, opposite to that in which the body tends to move Bears a constant ratio to the normal reaction between the two surfaces ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics Coefficient of friction depends upon Both (A) and (B) Area of contact only Nature of surface only None of these Both (A) and (B) Area of contact only Nature of surface only None of these ANSWER DOWNLOAD EXAMIANS APP
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