Machine Design Idler pulley is used for Changing the direction of motion of belt For applying tension Increasing velocity ratio All of these Changing the direction of motion of belt For applying tension Increasing velocity ratio All of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design If P1 and P2 are the tight and slack side tensions in the belt, then the initial tension Pi (according to Barth) will be equal to (Where, Pc is centrifugal tension) [(√P1 + √P2)/2]² P1 + P2 [⅟₂ × (P1 + P2)] + Pc ⅟₂× (P1 + P2) [(√P1 + √P2)/2]² P1 + P2 [⅟₂ × (P1 + P2)] + Pc ⅟₂× (P1 + P2) ANSWER DOWNLOAD EXAMIANS APP
Machine Design In order to have smooth operation, the minimum number of teeth on the smaller sprocket, for moderate speeds, should be 25 17 15 21 25 17 15 21 ANSWER DOWNLOAD EXAMIANS APP
Machine Design An elastic bar is fixed at the upper end and loaded at the lower end by a falling weight. The shock load produced can be reduced by Decreasing the modulus of elasticity of the bar Increasing the length of bar All of these Decreasing the cross-sectional area of the bar Decreasing the modulus of elasticity of the bar Increasing the length of bar All of these Decreasing the cross-sectional area of the bar ANSWER DOWNLOAD EXAMIANS APP
Machine Design When a hole of diameter ‘d’ is punched in a metal of thickness 't', then the force required to punch a hole is equal to (where τu = Ultimate shear strength of the material of the plate) t.τu πd.t.τu π/4 × d².τu π/4 × d² × tτu t.τu πd.t.τu π/4 × d².τu π/4 × d² × tτu ANSWER DOWNLOAD EXAMIANS APP
Machine Design The edges of the plates for cylindrical vessels are usually bevelled to an angle of 80° for Fullering and caulking Ease of manufacture Safety Reducing stress concentration Fullering and caulking Ease of manufacture Safety Reducing stress concentration ANSWER DOWNLOAD EXAMIANS APP
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