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 4.5/ (4.5 + v) 0.75/ (0.75 + √v) 6/ (6 + v) 3/ (3 + v) 4.5/ (4.5 + v) 0.75/ (0.75 + √v) 6/ (6 + v) 3/ (3 + v) ANSWER DOWNLOAD EXAMIANS APP
Machine Design The maximum efficiency of a square threaded screw is (1 - sinφ)/ (1 + cosφ) (1 - sinφ)/ (1 + sinφ) (1 + cosφ)/ (1 - sinφ) (1 + sinφ)/ (1 - sinφ) (1 - sinφ)/ (1 + cosφ) (1 - sinφ)/ (1 + sinφ) (1 + cosφ)/ (1 - sinφ) (1 + sinφ)/ (1 - sinφ) ANSWER DOWNLOAD EXAMIANS APP
Machine Design A taper key which fits half in the key way of the hub and half in the key way of shaft, is known as Internal bevel gears Mitre gears Angular bevel gears Crown Bevel gears Internal bevel gears Mitre gears Angular bevel gears Crown Bevel gears ANSWER DOWNLOAD EXAMIANS APP
Machine Design In worm gears, the angle between the tangent to the pitch helix and an element of the cylinder, is known as Helix angle Pressure angle Pitch lead angle None of these Helix angle Pressure angle Pitch lead angle None of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design The shear stress in a beam varies from zero at the outer fibers to a maximum at the________. None of these Upper surface Neutral surface Lower surface None of these Upper surface Neutral surface Lower surface ANSWER DOWNLOAD EXAMIANS APP
Machine Design When two helical springs of equal lengths are arranged to form a cluster spring, then Only A is correct Load taken by each spring will be half the total load Shear stress in each spring will be equal Both A and B is correct Only A is correct Load taken by each spring will be half the total load Shear stress in each spring will be equal Both A and B is correct ANSWER DOWNLOAD EXAMIANS APP
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