Theory of Machine The natural frequency of free transverse vibrations due to uniformly distributed load acting over a simply supported shaft is (where δS = Static deflection of simply supported shaft due to uniformly distributed load) 0.4985/ √δS 0.571/ √δS 0.6253/ √δS 0.5615/ √δS 0.4985/ √δS 0.571/ √δS 0.6253/ √δS 0.5615/ √δS ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the addenda on pinion and wheel is such that the path of approach and path of recess are half of their maximum possible values, then the length of the path of contact is given by (where r = Pitch circle radius of pinion, R = Pitch circle radius of wheel, and φ = Pressure angle) [(r + R) sinφ]/2 [(r + R) cosφ]/2 [(r² + R²) cosφ]/2 [(r² + R²) sinφ]/2 [(r + R) sinφ]/2 [(r + R) cosφ]/2 [(r² + R²) cosφ]/2 [(r² + R²) sinφ]/2 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 50°- 60° 80°- 90° 70°- 80° 60°-70° 50°- 60° 80°- 90° 70°- 80° 60°-70° ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the sleeve of a Porter governor moves downwards, the governor speed First increases and then decreases Increases Remain unaffected Decreases First increases and then decreases Increases Remain unaffected Decreases ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the crank is at the outer dead centre, in a reciprocating steam engine, then the acceleration of the piston will be ω² r {n/(n - 1)} ω² r {(n + 1)/n} ω² r {n/(n + 1)} ω² r {(n - 1)/n} ω² r {n/(n - 1)} ω² r {(n + 1)/n} ω² r {n/(n + 1)} ω² r {(n - 1)/n} ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the following statement is correct for involute gears? The pressure angle is constant throughout the teeth engagement. A convex flank is always in contact with concave flank. The interference is inherently absent. The variation in centre distance of shafts increases radial force. The pressure angle is constant throughout the teeth engagement. A convex flank is always in contact with concave flank. The interference is inherently absent. The variation in centre distance of shafts increases radial force. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS