Machine Design The connecting rod bolts are tightened up so that tightening stress Is just sufficient to hold parts together Approaches yield point Is 50% of yield point Is about yield point divided by safety factor Is just sufficient to hold parts together Approaches yield point Is 50% of yield point Is about yield point divided by safety factor ANSWER DOWNLOAD EXAMIANS APP
Machine Design Two helical springs of the same material and of equal circular cross-section, length and number of turns, but having radii 80 mm and 40 mm, kept concentrically (smaller radius spring within the larger radius spring), are compressed between two parallel planes with a load W. The inner spring will carry a load equal to W/2 2W/3 W/9 8W/9 W/2 2W/3 W/9 8W/9 ANSWER DOWNLOAD EXAMIANS APP
Machine Design In a band and block brake, the ratio of tensions on the tight and slack sides of band is given by (where μ = Coefficient of friction between the blocks and the drum, θ = Semi-angle of each block subtending at the centre of drum, and n = Number of blocks) T₁/T₂ = (μθ)n T₁/T₂ = μθ × n T₁/T₂ = [(1 + μ tanθ)/ (1 - μ tanθ)]n T₁/T₂ = [(1 - μ tanθ)/ (1 + μ tanθ)]n T₁/T₂ = (μθ)n T₁/T₂ = μθ × n T₁/T₂ = [(1 + μ tanθ)/ (1 - μ tanθ)]n T₁/T₂ = [(1 - μ tanθ)/ (1 + μ tanθ)]n ANSWER DOWNLOAD EXAMIANS APP
Machine Design The velocity factor for precision metallic gears cut with high accuracy and operating at velocities up to 20 m/s is equal to 3/ (3 + v) 0.75/ (0.75 + √v) 4.5/ (4.5 + v) 6/ (6 + v) 3/ (3 + v) 0.75/ (0.75 + √v) 4.5/ (4.5 + v) 6/ (6 + v) ANSWER DOWNLOAD EXAMIANS APP
Machine Design The longitudinal joint in boilers is used to get the required Length and diameter of boiler Diameter of boiler Length of boiler Efficiency of boiler Length and diameter of boiler Diameter of boiler Length of boiler Efficiency of boiler ANSWER DOWNLOAD EXAMIANS APP
Machine Design A shaft is subjected to fluctuating loads for which the normal torque (T) and bending moment (M) are 1000 N-m and 500 N-m respectively. If the combined shock and fatigue factor for bending is 1.5 and combined shock and fatigue factor for torsion is 2, then the equivalent twisting moment for the shaft is 2136 N-m 2100 N-m 2000 N-m 2050 N-m 2136 N-m 2100 N-m 2000 N-m 2050 N-m ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS