Engineering Mechanics The range of projectile will be maximum for a given velocity of projectile, when the angle of projection (α) is β/2 45° + β/2 30° + β/2 60° + β/2 β/2 45° + β/2 30° + β/2 60° + β/2 ANSWER DOWNLOAD EXAMIANS APP
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 algebraic sum of moments of the forces forming couple about any point in their plane is Constant Equal to the moment of the couple Both of above are wrong Both of above are correct Constant Equal to the moment of the couple Both of above are wrong Both of above are correct ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The rate of change of displacement of a body is called Velocity Acceleration Momentum None of these Velocity Acceleration Momentum None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The frequency of oscillation of a compound pendulum is (where kG = Radius of gyration about the centroidal axis, and h = Distance between the point of suspension and C.G. of the body.) 1/2π. √(kG² + h²/gh) 2π. √(gh/kG² + h²) 1/2π. √(gh/kG² + h²) 2π. √(kG² + h²/gh) 1/2π. √(kG² + h²/gh) 2π. √(gh/kG² + h²) 1/2π. √(gh/kG² + h²) 2π. √(kG² + h²/gh) ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A screw jack used for lifting the loads is A reversible machine An ideal machine None of these A non-reversible machine A reversible machine An ideal machine None of these A non-reversible machine ANSWER DOWNLOAD EXAMIANS APP
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