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) (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)/(1 - sin θ) sin θ/(1 + sin θ) ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The maximum frictional force which comes into play, when a body just begins to slide over the surface of a another body, is known Limiting friction Sliding friction Rolling friction None of these Limiting friction Sliding friction Rolling friction None of these ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics If ‘v’ and ‘ω’ are linear and angular velocities, the centripetal acceleration of a moving body along the circular path of radius ‘r’, will be r/v² v²/r ω²/r r/ω² r/v² v²/r ω²/r r/ω² ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics Three forces which act on a rigid body to keep it in equilibrium. The forces must be coplanar and None of these Concurrent Parallel Concurrent parallel None of these Concurrent Parallel Concurrent parallel ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics A ball is dropped from a height of 16 m on a horizontal floor. If it rebounds to a height of 9 m after striking the floor, the coefficient of restitution between ball and floor is 43834 43894 43864 43924 43834 43894 43864 43924 ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics If a body is lying on a plane whose inclination with the horizontal is less than the angle of friction, then i. a force is required to move the body upwards ii. a force is required to move the body downward iii. the body will not be in equilibrium The correct answer is both (i) and (ii) only (ii) only (i) both (i) and (iii) both (i) and (ii) only (ii) only (i) both (i) and (iii) ANSWER DOWNLOAD EXAMIANS APP
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