Applied Mechanics and Graphic Statics A load of 500 kg was lifted through a distance of 13 cm. by an effort of 25 kg which moved through a distance of 650 cm. The efficiency of the lifting machine is 0.3 0.55 0.5 0.4 0.3 0.55 0.5 0.4 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% equal to 100% more than 66.67% less than 50% more than 50% equal to 100% more than 66.67% less than 50% ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The potential energy of a particle falling through a straight shaft drilled through the earth (assumed homogenous and spherical) is proportional to (where r is the distance of’the particle from centre of the earth) r2 log r 1/r r r2 log r 1/r r ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The resolved part of the resultant of two forces inclined at an angle θ in a given direction is Difference of the forces multiplied by cosine θ° Algebraic sum of the resolved parts of the forces in the direction Sum of the forces multiplied by the tangent θ° Arithmetical sum of the resolved parts of the forces in the direction Difference of the forces multiplied by cosine θ° Algebraic sum of the resolved parts of the forces in the direction Sum of the forces multiplied by the tangent θ° Arithmetical sum of the resolved parts of the forces in the direction ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics Pick up the incorrect statement from the following. In a simple harmonic motion Velocity is maximum at its mean position Velocity is minimum at the end of the stroke Acceleration is minimum at the end of the stroke Acceleration is zero at the mean position Velocity is maximum at its mean position Velocity is minimum at the end of the stroke Acceleration is minimum at the end of the stroke Acceleration is zero at the mean position ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The following factor affects the orbit of a satellite up to an altitude of 720 km from the earth's surface Uneven distribution of the gravitational field Aerodynamic forces None of these Gravity of the sun and the moon Uneven distribution of the gravitational field Aerodynamic forces None of these Gravity of the sun and the moon ANSWER DOWNLOAD EXAMIANS APP
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