Machine Design Which is correct statement? Stress concentration in static loading is Very serious in ductile materials and less serious in brittle materials Seriousness would depend on other factors Equally serious in both types of materials Very serious in brittle materials and less serious in ductile materials Very serious in ductile materials and less serious in brittle materials Seriousness would depend on other factors Equally serious in both types of materials Very serious in brittle materials and less serious in ductile materials ANSWER DOWNLOAD EXAMIANS APP
Machine Design Which of the following statement is correct regarding power screws? Both (A) and (B) The efficiency of a self locking screw can not be more than 50% If the friction angle is less than the helix angle of the screw, then the efficiency will be more than 50% The efficiency of Acme (trapezoidal) thread is less than that of a square thread Both (A) and (B) The efficiency of a self locking screw can not be more than 50% If the friction angle is less than the helix angle of the screw, then the efficiency will be more than 50% The efficiency of Acme (trapezoidal) thread is less than that of a square thread ANSWER DOWNLOAD EXAMIANS APP
Machine Design The edges of the plates for cylindrical vessels are usually bevelled to an angle of 80° for Ease of manufacture Fullering and caulking Safety Reducing stress concentration Ease of manufacture Fullering and caulking Safety Reducing stress concentration ANSWER DOWNLOAD EXAMIANS APP
Machine Design For same pulley diameters, center distance, belt speed and belt and pulley materials, Open and crossed belt drives transmit same power Power transmission does not depend upon open and crossed types of constructions Crossed belt drive transmits more power than open belt drive Open belt drive transmits more power than crossed belt drive Open and crossed belt drives transmit same power Power transmission does not depend upon open and crossed types of constructions Crossed belt drive transmits more power than open belt drive Open belt drive transmits more power than crossed belt drive ANSWER DOWNLOAD EXAMIANS APP
Machine Design In a multiple V-belt drive, when a single belt is damaged, it is preferable to change the complete set in order to Reduce vibration Reduce slip Ensure proper alignment Ensure uniform loading Reduce vibration Reduce slip Ensure proper alignment Ensure uniform loading ANSWER DOWNLOAD EXAMIANS APP
Machine Design A special case of ductility which permits materials to be rolled or hammered into thin sheets, is called Plasticity Elasticity Malleability Ductility Plasticity Elasticity Malleability Ductility ANSWER DOWNLOAD EXAMIANS APP
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