Applied Mechanics and Graphic Statics Maximum efficiency of a screw jack for the angle of friction θ, is (1 - sin θ)/sin θ (1 - sin θ)/(1 + sin θ) sin θ/(1 + sin θ) (1 + sin θ)/(1 - sin θ) (1 - sin θ)/sin θ (1 - sin θ)/(1 + sin θ) sin θ/(1 + sin θ) (1 + sin θ)/(1 - sin θ) ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics For a non-concurrent force system to be in equilibrium Both force polygon and funicular polygon must close Only the closure of funicular polygon is sufficient Only the closure of force polygon is sufficient None of these Both force polygon and funicular polygon must close Only the closure of funicular polygon is sufficient Only the closure of force polygon is sufficient None of these ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics On a ladder resting on a rough ground and leaning against a smooth vertical wall, the force of friction acts Upwards at its upper end Downwards at its upper end Perpendicular to the wall at its upper end Zero at its upper end Upwards at its upper end Downwards at its upper end Perpendicular to the wall at its upper end Zero at its upper end ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics A flywheel of moment of inertia 20 kg.m is acted upon by a tangential force of 5 N at 2 m from its axis, for 3 seconds. The increase in angular velocity in radian per second is 43892 2 3 43832 43892 2 3 43832 ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics A rigid body is in a stable equilibrium if the application of any force Can raise the CG of the body but cannot lower it None of above Neither raises nor lowers the CG of the body Tends to lower the CG of the body Can raise the CG of the body but cannot lower it None of above Neither raises nor lowers the CG of the body Tends to lower the CG of the body ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics A projectile is thrown at an angle ‘α’ to the horizontal with velocity ‘v’. It will have the maximum centripetal acceleration At the start Elsewhere As it strikes the ground At the top of the trajectory At the start Elsewhere As it strikes the ground At the top of the trajectory ANSWER DOWNLOAD EXAMIANS APP
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