Engineering Mechanics The efficiency of a lifting machine is the ratio of All of these Output to the input Mechanical advantage to the velocity ratio Work done by the machine to the work done on the machine All of these Output to the input Mechanical advantage to the velocity ratio Work done by the machine to the work done on the machine ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics If the gravitational acceleration at any place is doubled, then the weight of a body will be g √2.g 2g g/2 g √2.g 2g g/2 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics Tension in the cable supporting a lift is more when the lift is moving __________ with an acceleration. Downwards None of these Horizontal Upwards Downwards None of these Horizontal Upwards ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The velocity ratio for the first system of pulleys is (where n is the number of pulleys.) n 2n 2n - 1 n² n 2n 2n - 1 n² ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The moment of inertia of a solid cone of mass ‘m’ and base radius ‘r’ about its vertical axis is 3mr²/5 2mr²/5 4mr²/5 3mr²/10 3mr²/5 2mr²/5 4mr²/5 3mr²/10 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The frequency of oscillation of a compound pendulum is (where kG = Radius of gyration about the centroidal axis, and h = Distance between the point of suspension and C.G. of the body.) 1/2π. √(gh/kG² + h²) 2π. √(kG² + h²/gh) 1/2π. √(kG² + h²/gh) 2π. √(gh/kG² + h²) 1/2π. √(gh/kG² + h²) 2π. √(kG² + h²/gh) 1/2π. √(kG² + h²/gh) 2π. √(gh/kG² + h²) ANSWER DOWNLOAD EXAMIANS APP
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