Engineering Mechanics Efficiency of a screw jack is given by (where α = Helix angle, and φ = Angle of friction.) 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 tan(α - φ)/tanα ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The frequency of oscillation of a compound pendulum is (where kG = Radius of gyration about the centroidal axis, and h = Distance between the point of suspension and C.G. of the body.) 1/2π. √(gh/kG² + h²) 1/2π. √(kG² + h²/gh) 2π. √(kG² + h²/gh) 2π. √(gh/kG² + h²) 1/2π. √(gh/kG² + h²) 1/2π. √(kG² + h²/gh) 2π. √(kG² + h²/gh) 2π. √(gh/kG² + h²) ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The coefficient of friction depends upon Nature of surfaces Area of contact Shape of the surfaces All of these Nature of surfaces Area of contact Shape of the surfaces All of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics The impact between two lead spheres is approximately equal to an __________ impact. Elastic None of these Solid Inelastic Elastic None of these Solid Inelastic ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics If the number of pulleys in a system is equal to its velocity ratio, then it is a __________ system of pulleys. Third Second None of these First Third Second None of these First ANSWER DOWNLOAD EXAMIANS APP
Engineering Mechanics A couple produces Combined translatory and rotational motion None of these Rotational motion Translatory motion Combined translatory and rotational motion None of these Rotational motion Translatory motion ANSWER DOWNLOAD EXAMIANS APP
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