Theory of Machine There are six gears A, B, C, D, E and F in a compound train. The numbers of teeth in the gears are 20, 60, 30, 80, 25 and 75 respectively. The ratio of angular speeds of the driven (F) to the driver (A) of the drive is 1/8 4/15 12 1/24 1/8 4/15 12 1/24 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In Meyer's expansion valve, the expansion valve is driven by an eccentric having an angle of advance from 80°- 90° 50°- 60° 60°-70° 70°- 80° 80°- 90° 50°- 60° 60°-70° 70°- 80° ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The condition for correct steering of a Davis steering gear is (where α = Angle of inclination of the links to the vertical) cotα = c/2b cosα = c/b sinα = b/c tanα = c/2b cotα = c/2b cosα = c/b sinα = b/c tanα = c/2b ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In under damped vibrating system, if x₁ and x₂ are the successive values of the amplitude on the same side of the mean position, then the logarithmic decrement is equal to log(x₁.x₂) log(x₁/x₂) loge(x₁/x₂) x₁/x₂ log(x₁.x₂) log(x₁/x₂) loge(x₁/x₂) x₁/x₂ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In S.H.M., the velocity vector w.r.t. displacement vector Leads by 90° Are in phase Lags by 90° Leads by 180° Leads by 90° Are in phase Lags by 90° Leads by 180° ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a single slider crank chain Two are turning pairs and two are sliding pairs Each of the four pairs is a turning pair Three are turning pairs and one is a sliding pair One is a turning pair and three are sliding pairs Two are turning pairs and two are sliding pairs Each of the four pairs is a turning pair Three are turning pairs and one is a sliding pair One is a turning pair and three are sliding pairs ANSWER DOWNLOAD EXAMIANS APP
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