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 12,000 r.p.m. 6,000 r.p.m. 9,360 r.p.m. 5,367 r.p.m. 12,000 r.p.m. 6,000 r.p.m. 9,360 r.p.m. 5,367 r.p.m. ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine If ‘D₁’ and ‘D₂’ be the diameters of driver and driven pulleys, then belt speed is proportional to D₁.D₂ D₂/D₁ D₁/D₂ D₁ D₁.D₂ D₂/D₁ D₁/D₂ D₁ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The unbalanced force due to revolving masses Varies in magnitude but constant in direction Varies in magnitude and direction both Varies in direction but constant in magnitude Constant in magnitude and direction both Varies in magnitude but constant in direction Varies in magnitude and direction both Varies in direction but constant in magnitude Constant in magnitude and direction both ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A universal joint is an example of Lower pair Sliding pair Rolling pair Higher pair Lower pair Sliding pair Rolling pair Higher pair ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the following is a higher pair? Sliding pair Belt and pulley Screw pair Turning pair Sliding pair Belt and pulley Screw pair Turning pair ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine ________ is an inversion of Double slider crank chain. Hand pump Scotch yoke mechanism Coupling rod of a locomotive Reciprocating engine Hand pump Scotch yoke mechanism Coupling rod of a locomotive Reciprocating engine ANSWER DOWNLOAD EXAMIANS APP
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