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 6/ (6 + v) 3/ (3 + v) 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) ANSWER DOWNLOAD EXAMIANS APP
Machine Design A shaft is subjected to a maximum bending stress of 80 N/mm² and maximum shearing stress equal to 30 N/mm² at a particular section. If the yield point in tension of the material is 280 N/mm² and the maximum shear stress theory of failure is used, then the factor of safety obtained will be 2.5 2.8 3 3.5 2.5 2.8 3 3.5 ANSWER DOWNLOAD EXAMIANS APP
Machine Design The rocker arms in internal combustion engines are of__________. Second type levers First type levers Third type levers None of these Second type levers First type levers Third type levers None of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design In a marine flange coupling, the thickness of flange is taken as d/2 3d/4 d/4 d/3 d/2 3d/4 d/4 d/3 ANSWER DOWNLOAD EXAMIANS APP
Machine Design Euler’s formula for a mild steel column is not valid if the slenderness ratio is 100 120 90 60 100 120 90 60 ANSWER DOWNLOAD EXAMIANS APP
Machine Design According to I.B.R., the thickness of the boiler shell should not be less than 6 mm 4 mm 7 mm 5 mm 6 mm 4 mm 7 mm 5 mm ANSWER DOWNLOAD EXAMIANS APP
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