Engineering Mechanics The moment of inertia of a thin disc of mass ‘m’ and radius ‘r’, about an axis through its center of gravity and perpendicular to the plane of the disc is mr²/4 mr²/6 mr²/8 mr²/2 mr²/4 mr²/6 mr²/8 mr²/2 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A machine having an efficiency less than 50%, is known as Neither reversible nor non-reversible machine Ideal machine Non-reversible machine Reversible machine Neither reversible nor non-reversible machine Ideal machine Non-reversible machine Reversible machine ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The center of gravity of a semi-circle lies at a distance of __________ from its base measured along the vertical radius. 4r/ 3π 8r/3 3r/4π 3r/ 8 4r/ 3π 8r/3 3r/4π 3r/ 8 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics For a self locking machine, the efficiency must be Greater than 50% Equal to 50% 1 Less than 50% Greater than 50% Equal to 50% 1 Less than 50% ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics If a body is acted upon by a number of coplanar non-concurrent forces, it may All of these Move in any one direction rotating about itself Be completely at rest Rotate about itself without moving All of these Move in any one direction rotating about itself Be completely at rest Rotate about itself without moving ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The range of projectile (R) on an upward inclined plane is 2u². sin (α - β). cos α/g. cos² β g. cos² β/2u². sin (α + β). cos α 2u². sin (α + β). cos α/g. cos² β g. cos² β/2u². sin (α - β). cos α 2u². sin (α - β). cos α/g. cos² β g. cos² β/2u². sin (α + β). cos α 2u². sin (α + β). cos α/g. cos² β g. cos² β/2u². sin (α - β). cos α ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS