Applied Mechanics and Graphic Statics In a simple screw jack, the pitch of the screw is 9 mm and length of the handle operating the screw is 45 cm. The velocity ratio of the system is 1.5 314 5 25 1.5 314 5 25 ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The condilion for a lifting machine to be reversible is that its efficiency should be more than 50% less than 50% equal to 100% more than 66.67% more than 50% less than 50% equal to 100% more than 66.67% ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The centre of gravity of a quadrant of a circle lies along its central radius at a distance of 0.4 R 0.2 R 0.3 R 0.6 R 0.4 R 0.2 R 0.3 R 0.6 R ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The necessary condition of equilibrium of a body is: Algebraic sum of horizontal components of all the forces must be zero Algebraic sum of vertical components of all the forces must be zero All (A), (B) and (C) Algebraic sum of the moments of the forces about a point must be zero Algebraic sum of horizontal components of all the forces must be zero Algebraic sum of vertical components of all the forces must be zero All (A), (B) and (C) Algebraic sum of the moments of the forces about a point must be zero ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics A 50 kg boy climbs up a 8 m rope in gymnasium in 10 sec. The average power developed by the boy is approximately None of these 4000 watts 400 watts 500 watts None of these 4000 watts 400 watts 500 watts ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics A sphere and a cylinder having the same mass and radii start from rest and roll down the same inclined plane. Which body gets to the bottom first? Both reach the bottom simultaneously with equal rotational energy at bottom Sphere with lesser rotational energy at bottom than cylinder Cylinder with greater rotational energy at bottom than sphere Sphere with greater rotational energy at bottom than cylinder Both reach the bottom simultaneously with equal rotational energy at bottom Sphere with lesser rotational energy at bottom than cylinder Cylinder with greater rotational energy at bottom than sphere Sphere with greater rotational energy at bottom than cylinder ANSWER DOWNLOAD EXAMIANS APP
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