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 The pair is known as a higher pair, when the relative motion between the elements of a pair is Partly turning and partly sliding Sliding only Turning only Rolling only Partly turning and partly sliding Sliding only Turning only Rolling only ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The unbalanced force due to reciprocating masses Varies in direction but constant in magnitude Varies in magnitude and direction both Varies in magnitude but constant in direction Constant in magnitude and direction both Varies in direction but constant in magnitude Varies in magnitude and direction both Varies in magnitude but constant in direction Constant in magnitude and direction both ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A simple spring-mass vibrating system has a natural frequency of fn. If the spring stiffness is halved and the mass is doubled, then the natural frequency will become fn/2 8 fn 4 fn 2 fn fn/2 8 fn 4 fn 2 fn 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 TJIE horse power transmitted by a belt is dependent upon All of these Tension on slack side of belt Radius of pulley Tension on tight side of belt All of these Tension on slack side of belt Radius of pulley Tension on tight side of belt ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS