Engineering Mechanics Efficiency of a screw jack is given by (where α = Helix angle, and φ = Angle of friction.) tan(α + φ)/tanα None of these tanα/tan (α + φ) tan(α - φ)/tanα tan(α + φ)/tanα None of these tanα/tan (α + φ) tan(α - φ)/tanα ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics Two forces are acting at an angle of 120°. The bigger force is 40 N and the resultant is perpendicular to the smaller one. The smaller force is 40 N 120 N None of the listed here 20 N 40 N 120 N None of the listed here 20 N ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A particle moves along a straight line such that distance (x) traversed in 't' seconds is given by x = t² (t - 4), the acceleration of the particle will be given by the equation 6f - 8 3t² + 2t 6f - 4 6t² - 8t 6f - 8 3t² + 2t 6f - 4 6t² - 8t 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 Center of mass Moment of inertia Center of gravity Center of percussion Center of mass Moment of inertia Center of gravity 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 3r/4π 3r/ 8 8r/3 4r/ 3π 3r/4π 3r/ 8 8r/3 ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The bodies which rebound after impact are called Inelastic bodies Neither elastic nor inelastic bodies None of these Elastic bodies Inelastic bodies Neither elastic nor inelastic bodies None of these Elastic bodies ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS