Theory of Machine The periodic time is given by (where ω = Angular velocity of the particle in rad/s) ω/2π ω × 2π 2π/ω π/ω ω/2π ω × 2π 2π/ω π/ω ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A chain comprises of 5 links having 5 joints. Is it kinematic chain? Yes It is a marginal case No Data are insufficient to determine it Yes It is a marginal case No Data are insufficient to determine it ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Relationship between the number of links (L) and number of pairs (P) is P = 2L + 2 P = 2L - 4 P = 2L + 4 P = 2L - 2 P = 2L + 2 P = 2L - 4 P = 2L + 4 P = 2L - 2 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Oldham’s coupling is an inversion of the kinematic chain used in Rotary engine Whitworth quick return mechanism Elliptical trammels Universal joint Rotary engine Whitworth quick return mechanism Elliptical trammels Universal joint ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The radius of a friction circle for a shaft rotating inside a bearing is (where r = Radius of shaft, and tan φ = Coefficient of friction between the shaft and bearing) (r/2) cosφ r sinφ r cosφ r tanφ (r/2) cosφ r sinφ r cosφ r tanφ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The relation l = (2/3).(j + 2) apply only to kinematic chains in which lower pairs are used. This may be used to kinematic chains in which higher pairs are used, but each higher pair may be taken as equivalent to Any one of these One lower pair and two additional links Two lower pairs and two additional links Two lower pairs and one additional link Any one of these One lower pair and two additional links Two lower pairs and two additional links Two lower pairs and one additional link ANSWER DOWNLOAD EXAMIANS APP
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