Theory of Machine If ‘D₁’ and ‘D₂’ be the diameters of driver and driven pulleys, then belt speed is proportional to D₁.D₂ D₁ D₁/D₂ D₂/D₁ D₁.D₂ D₁ D₁/D₂ D₂/D₁ 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 Under damped Critically damped Over-damped Without vibrations Under damped Critically damped Over-damped ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a system subjected to damped forced vibrations, the ratio of maximum displacement to the static deflection is known as Critical damping ratio Logarithmic decrement Damping factor Magnification factor Critical damping ratio Logarithmic decrement Damping factor Magnification factor ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Balancing of rotating and reciprocating parts of an engine is necessary when it runs at Highs peed Any one of these Slow speed Moderate speed Highs peed Any one of these Slow speed Moderate speed ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the nature of contact between the elements of a pair is such that one element can turn about the other by screw threads, the pair is known as a Screw pair Turning pair Spherical pair Sliding pair Screw pair Turning pair Spherical pair Sliding pair ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The frictional torque transmitted in a flat pivot bearing, assuming uniform wear, is(Where μ = Coefficient of friction, W=Load over the bearing, R=Radius of bearing) μwr ²/₃ μWR ½μWR ¾μWR μwr ²/₃ μWR ½μWR ¾μWR ANSWER DOWNLOAD EXAMIANS APP
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