Theory of Machine The dynamic friction is the friction experienced by a body, when the body None of these Is in motion Is at rest Just begins to slide over the surface of the other body None of these Is in motion Is at rest Just begins to slide over the surface of the other body ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The condition for correct steering of a Davis steering gear is (where α = Angle of inclination of the links to the vertical) sinα = b/c tanα = c/2b cosα = c/b cotα = c/2b sinα = b/c tanα = c/2b cosα = c/b cotα = c/2b ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The two parallel and coplanar shafts are connected by gears having teeth parallel to the axis of the shaft. This arrangement is known as Spur gearing Helical gearing Spiral gearing Bevel gearing Spur gearing Helical gearing Spiral gearing Bevel gearing 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 Without vibrations Critically damped Under damped Over-damped Without vibrations Critically damped Under damped Over-damped ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A shaft has two heavy rotors mounted on it. The transverse natural frequencies, considering each of the rotor separately, are 100 Hz and 200 Hz respectively. The lowest critical speed is 9,360 r.p.m. 12,000 r.p.m. 5,367 r.p.m. 6,000 r.p.m. 9,360 r.p.m. 12,000 r.p.m. 5,367 r.p.m. 6,000 r.p.m. ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A point B on a rigid link AB moves with respect to A with angular velocity ω rad/s. The total acceleration of B with respect to A will be equal to Vector sum of tangential component and Coriolis component Vector difference of radial component and tangential component Vector sum of radial component and tangential component Vector sum of radial component and Coriolis component Vector sum of tangential component and Coriolis component Vector difference of radial component and tangential component Vector sum of radial component and tangential component Vector sum of radial component and Coriolis component ANSWER DOWNLOAD EXAMIANS APP
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