Machine Design If shearing stress in nut is half the tensile stress in a bolt, then nut length should be equal to 1.25 × diameter of bolt Diameter of bolt 1.5 × diameter of bolt 0.75 × diameter of bolt 1.25 × diameter of bolt Diameter of bolt 1.5 × diameter of bolt 0.75 × diameter of bolt ANSWER DOWNLOAD EXAMIANS APP
Machine Design Which is correct statement? Stress concentration in static loading is Seriousness would depend on other factors Very serious in brittle materials and less serious in ductile materials Equally serious in both types of materials Very serious in ductile materials and less serious in brittle materials Seriousness would depend on other factors Very serious in brittle materials and less serious in ductile materials Equally serious in both types of materials Very serious in ductile materials and less serious in brittle materials ANSWER DOWNLOAD EXAMIANS APP
Machine Design The connecting rod bolts are tightened up with initial tension greater than the external load so that The resultant load on the bolt would not be affected by the external cyclic load Bolts will not loosen during service Bolts are weakest elements Joint may not open up The resultant load on the bolt would not be affected by the external cyclic load Bolts will not loosen during service Bolts are weakest elements Joint may not open up ANSWER DOWNLOAD EXAMIANS APP
Machine Design Idler pulley is used for All of these 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 ANSWER DOWNLOAD EXAMIANS APP
Machine Design In order to ensure self locking in a screw jack, it is essential that helix angle is __________ friction angle. Smaller than Equal to Larger than None of these Smaller than Equal to Larger than None of these ANSWER DOWNLOAD EXAMIANS APP
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 0.75/ (0.75 + √v) 4.5/ (4.5 + v) 3/ (3 + v) 6/ (6 + v) 0.75/ (0.75 + √v) 4.5/ (4.5 + v) 3/ (3 + v) 6/ (6 + v) ANSWER DOWNLOAD EXAMIANS APP
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