Theory of Machine In vibration isolation system, if ω/ωn > 1, then the phase difference between the transmitted force and the disturbing force is 180° 0° 90° 270° 180° 0° 90° 270° 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 Over-damped Under damped Critically damped Without vibrations Over-damped Under damped Critically 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. 6,000 r.p.m. 5,367 r.p.m. 12,000 r.p.m. 9,360 r.p.m. 6,000 r.p.m. 5,367 r.p.m. 12,000 r.p.m. ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The partial balancing means All of these Balancing partially reciprocating masses Balancing partially revolving masses Best balancing of engines All of these Balancing partially reciprocating masses Balancing partially revolving masses Best balancing of engines ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The Grubler's criterion for determining the degrees of freedom (n) of a mechanism having plane motion is (where l = Number of links, and j = Number of binary joints) n = (l -1) - j n = 3(l - 1) - 2j n = 4(l - 1) - 3j n = 2(l - 1) - 2j n = (l -1) - j n = 3(l - 1) - 2j n = 4(l - 1) - 3j n = 2(l - 1) - 2j ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The Coriolis component of acceleration exists whenever a point moves along a path that has Rotational motion Linear displacement Gravitational acceleration Tangential acceleration Rotational motion Linear displacement Gravitational acceleration Tangential acceleration ANSWER DOWNLOAD EXAMIANS APP
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