Engineering Mechanics The angle between two forces when the resultant is maximum and minimum respectively are 90° and 180° 0° and 180° 180° and 0° 90° and 0° 90° and 180° 0° and 180° 180° and 0° 90° and 0° ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The unit of angular velocity is Both (B) and (C) Revolutions/min m/min rad/s Both (B) and (C) Revolutions/min m/min rad/s ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The point, through which the whole weight of the body acts, irrespective of its position, is known as Center of percussion Moment of inertia Center of mass Center of gravity Center of percussion Moment of inertia Center of mass Center of gravity ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics In ideal machines, mechanical advantage is __________ velocity ratio. Less than None of these Equal to Greater than Less than None of these Equal to Greater than ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics Efficiency of a screw jack is given by (where α = Helix angle, and φ = Angle of friction.) tan(α + φ)/tanα tan(α - φ)/tanα tanα/tan (α + φ) None of these tan(α + φ)/tanα tan(α - φ)/tanα tanα/tan (α + φ) None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The Cartesian equation of trajectory is (where u = Velocity of projection, α = Angle of projection, and x, y = Co-ordinates of any point on the trajectory after t seconds.) y = x. tanα - (gx²/2u² cos²α) y = x. tanα + (gx²/2u² cos²α) y = (gx²/2u² cos²α) - x. tanα y = (gx²/2u² cos²α) + x. tanα y = x. tanα - (gx²/2u² cos²α) y = x. tanα + (gx²/2u² cos²α) y = (gx²/2u² cos²α) - x. tanα y = (gx²/2u² cos²α) + x. tanα ANSWER DOWNLOAD EXAMIANS APP
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