Theory of Machine The size of cam depends upon Prime circle Pitch circle Pitch curve Base circle Prime circle Pitch circle Pitch curve Base circle ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The velocity of a flat-faced follower when it has contact with the flank of a circular arc cam, is given by ω(R - r₁) cosθ ω(R - r₁) sinθ ωr₁ sinθ ωR cosθ ω(R - r₁) cosθ ω(R - r₁) sinθ ωr₁ sinθ ωR cosθ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Lower pairs are those which have Point or line contact between the two elements when in motion Surface contact between the two elements when in motion Elements of pairs not held together mechanically Two elements that permit relative motion Point or line contact between the two elements when in motion Surface contact between the two elements when in motion Elements of pairs not held together mechanically Two elements that permit relative motion 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 12,000 r.p.m. 5,367 r.p.m. 9,360 r.p.m. 6,000 r.p.m. 12,000 r.p.m. 5,367 r.p.m. 9,360 r.p.m. 6,000 r.p.m. ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In locomotives, the ratio of the connecting rod length to me crank radius is kept very large in order to To start the locomotive quickly Minimize the effect of secondary forces Have perfect balancing Minimize the effect of primary forces To start the locomotive quickly Minimize the effect of secondary forces Have perfect balancing Minimize the effect of primary forces ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a hydrodynamic journal bearing, there is No lubricant between the journal and the bearing A very thin film of lubricant between the journal and the bearing such that there is contact between the journal and the bearing A forced lubricant between the journal and the bearing A thick film of lubricant between the journal and the bearing No lubricant between the journal and the bearing A very thin film of lubricant between the journal and the bearing such that there is contact between the journal and the bearing A forced lubricant between the journal and the bearing A thick film of lubricant between the journal and the bearing ANSWER DOWNLOAD EXAMIANS APP
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