Theory of Machine The dynamic friction is the friction experienced by a body, when the body Just begins to slide over the surface of the other body None of these Is at rest Is in motion Just begins to slide over the surface of the other body None of these Is at rest Is in motion ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When two pulleys of different diameters are connected by means of an open belt, the angle of contact at the ________ pulley must be taken into consideration. Larger None of the listed here Smaller OR Larger Smaller Larger None of the listed here Smaller OR Larger Smaller ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine One end of a helical spring is fixed while the other end carries the load W which moves with simple harmonic motion. The frequency of motion is given by (where δ = Deflection of the spring) 1/2π. √(g/δ) 2π. √(g/δ) 1/2π. √(δ/g) 2π. √(δ/g) 1/2π. √(g/δ) 2π. √(g/δ) 1/2π. √(δ/g) 2π. √(δ/g) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Elements of pairs held together mechanically is known as Mechanical pair Open pair Rolling pair Closed pair Mechanical pair Open pair Rolling pair Closed pair ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The equation of motion for a vibrating system with viscous damping is (d²x/dt²) + (c/m). (dx/dt) + (s/m). x = 0. If the roots of this equation are real, then the system will be Over-damped Under damped Critically damped Without vibrations Over-damped Under damped Critically damped Without vibrations ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Minimum number of teeth for involute rack and pinion arrangement for pressure angle of 20° is 10 30 20 34 10 30 20 34 ANSWER DOWNLOAD EXAMIANS APP