Engineering Mechanics The time of flight (t) of a projectile on an upward inclined plane is(where u = Velocity of projection, α = Angle of projection, and β = Inclination of the plane with the horizontal.) t = 2u sin (α - β)/g cos β t = g cos β/2u sin (α + β) t = 2u sin (α + β)/g cos β t = g cos β/2u sin (α - β) t = 2u sin (α - β)/g cos β t = g cos β/2u sin (α + β) t = 2u sin (α + β)/g cos β t = g cos β/2u sin (α - β) ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The efficiency of a lifting machine is the ratio of All of these Mechanical advantage to the velocity ratio Work done by the machine to the work done on the machine Output to the input All of these Mechanical advantage to the velocity ratio Work done by the machine to the work done on the machine Output to the input ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The time of flight of a projectile on downward inclined plane depends upon Angle of projection None of these Both (A) and (B) Angle of inclination of the plane Angle of projection None of these Both (A) and (B) Angle of inclination of the plane ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The forces, which meet at one point, but their lines of action do not lie in a plane, are called Intersecting forces Non-coplanar concurrent forces Coplanar non-concurrent forces Non-coplanar non-concurrent forces Intersecting forces Non-coplanar concurrent forces Coplanar non-concurrent forces Non-coplanar non-concurrent forces ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The center of percussion of a solid cylinder of radius ‘r’ resting on a horizontal plane will be 3r/2 r/2 2r/3 r/A 3r/2 r/2 2r/3 r/A ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics Non-coplanar concurrent forces are those forces which Meet at one point, but their lines of action do not lie on the same plane Do not meet at one point, but their lines of action lie on the same plane Do not meet at one point and their lines of action do not lie on the same plane Meet at one point and their lines of action also lie on the same plane Meet at one point, but their lines of action do not lie on the same plane Do not meet at one point, but their lines of action lie on the same plane Do not meet at one point and their lines of action do not lie on the same plane Meet at one point and their lines of action also lie on the same plane ANSWER DOWNLOAD EXAMIANS APP
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