Machine Design In order to have smooth operation, the minimum number of teeth on the smaller sprocket, for moderate speeds, should be 17 15 21 25 17 15 21 25 ANSWER DOWNLOAD EXAMIANS APP
Machine Design A screw will be self locking, if Friction angle is more than helix angle Efficiency of screw is 100% Friction angle is equal to helix angle Friction angle is less than helix angle Friction angle is more than helix angle Efficiency of screw is 100% Friction angle is equal to helix angle Friction angle is less than helix angle ANSWER DOWNLOAD EXAMIANS APP
Machine Design The material commonly used for crane hooks is Mild steel Aluminium Cast iron Wrought iron Mild steel Aluminium Cast iron Wrought iron ANSWER DOWNLOAD EXAMIANS APP
Machine Design The ends of the leaves of a semi-elliptical leaf spring are made triangular in order to Permit each leaf to act as an overhanging beam Obtain variable moment of inertia (I) in each leaf Make M/I constant throughout the length of the leaf Have variable bending moment (M) in each leaf Permit each leaf to act as an overhanging beam Obtain variable moment of inertia (I) in each leaf Make M/I constant throughout the length of the leaf Have variable bending moment (M) in each leaf 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 (neglecting centrifugal tension) will be equal to (Where, Pc is centrifugal tension) P1 - P2 ⅟₂ × (P1 + P2) [⅟₂ × (P1 + P2)] + Pc P1 + P2 P1 - P2 ⅟₂ × (P1 + P2) [⅟₂ × (P1 + P2)] + Pc P1 + P2 ANSWER DOWNLOAD EXAMIANS APP
Machine Design The connecting rod bolts are tightened up so that tightening stress Approaches yield point Is about yield point divided by safety factor Is just sufficient to hold parts together Is 50% of yield point Approaches yield point Is about yield point divided by safety factor Is just sufficient to hold parts together Is 50% of yield point ANSWER DOWNLOAD EXAMIANS APP
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