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) 6/ (6 + v) 4.5/ (4.5 + v) 3/ (3 + v) 0.75/ (0.75 + √v) 6/ (6 + v) 4.5/ (4.5 + v) ANSWER DOWNLOAD EXAMIANS APP
Machine Design The temperature at which the new grains are formed in the metal is known as Upper critical temperature Recrystallization temperature None of these Lower critical temperature Upper critical temperature Recrystallization temperature None of these Lower critical temperature ANSWER DOWNLOAD EXAMIANS APP
Machine Design Idler pulley is used for Changing the direction of motion of belt Increasing velocity ratio All of these For applying tension Changing the direction of motion of belt Increasing velocity ratio All of these For applying tension ANSWER DOWNLOAD EXAMIANS APP
Machine Design According to I.B.R., the efficiency of a double riveted butt joint with double cover straps of equal width should be 70 to 83% 80 to 90% 63 to 70% 45 to 60% 70 to 83% 80 to 90% 63 to 70% 45 to 60% ANSWER DOWNLOAD EXAMIANS APP
Machine Design According to Indian standards, a bolt thread of 6 mm size of coarse pitch and with allowance on the threads and normal tolerance grade is designated as M6 M8 M8 - 6d M6 - 8d M6 M8 M8 - 6d M6 - 8d ANSWER DOWNLOAD EXAMIANS APP
Machine Design For low and moderate speed engines, the cam follower should move with Uniform acceleration and retardation Cycloidal motion Simple harmonic motion Uniform velocity Uniform acceleration and retardation Cycloidal motion Simple harmonic motion Uniform velocity ANSWER DOWNLOAD EXAMIANS APP
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