Applied Mechanics and Graphic Statics The condition of equilibrium for any system of forces in a plane is Both (A) and (B) None of these That polygon of forces must close That resultant couple must be zero Both (A) and (B) None of these That polygon of forces must close That resultant couple must be zero ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The frequency of oscillation on moon as compared to that on earth, will be 3 times less 2.44 times less 2.44 times more 3 times more 3 times less 2.44 times less 2.44 times more 3 times more ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics If two forces acting at a point are in equilibrium, they must be equal in magnitude and their line of action must be along The same line in opposite sense The same line in the same sense None of these The perpendicular to both the lines The same line in opposite sense The same line in the same sense None of these The perpendicular to both the lines ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics If the resultant of two forces ‘P’ and ‘Q’ acting at an angle ‘θ’ makes an angle ‘α’ with ‘P’, then tan α equals Q sin θ/P + Q sin θ P sin θ/P + Q tan θ Q sin θ/P + Q cos θ P sin θ/P - Q cos θ Q sin θ/P + Q sin θ P sin θ/P + Q tan θ Q sin θ/P + Q cos θ P sin θ/P - Q cos θ ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics The rate of change of displacement of a body with respect to its surrounding, is known Speed Velocity None of these Acceleration Speed Velocity None of these Acceleration ANSWER DOWNLOAD EXAMIANS APP
Applied Mechanics and Graphic Statics For a given velocity of a projectile, the range is maximum when the angle of projection is 45° 90° 0° 30° 45° 90° 0° 30° ANSWER DOWNLOAD EXAMIANS APP