Theory of Machine In a screw jack, the effort required to lift the load W is given by (where α = Helix angle, and φ = Angle of friction) P = W cos(α + φ) P = W tan(α - φ) P = W tan(α + φ) P = W tan(φ - α) P = W cos(α + φ) P = W tan(α - φ) P = W tan(α + φ) P = W tan(φ - α) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which gear is used for connecting two coplanar and intersecting shafts? Helical gear Spur gear Bevel gear None of these Helical gear Spur gear Bevel gear None of these ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When a body is subjected to transverse vibrations, the stress induced in a body will be Compressive stress Bending stress Tensile stress Shear stress Compressive stress Bending stress Tensile stress Shear stress ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A mass of 1 kg is attached to the end of a spring with a stiffness of 0.7 N/mm. The critical damping coefficient of this system is 18.52 N-s/m 52.92 N-s/m 1.4 N-s/m 529.2 N-s/m 18.52 N-s/m 52.92 N-s/m 1.4 N-s/m 529.2 N-s/m ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The axis of precession is __________ to the plane in which the axis of spin is going to rotate. None of these Perpendicular Both A and B Parallel None of these Perpendicular Both A and B Parallel ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In full depth involute system, the smallest number of teeth in a pinion which meshes with rack without interference is 25 16 12 32 25 16 12 32 ANSWER DOWNLOAD EXAMIANS APP