Machine Design The rolling contact bearings as compared to sliding contact bearings have Low starting and low running friction except at very high speeds Accuracy of shaft alignment Small overall dimensions All of these Low starting and low running friction except at very high speeds Accuracy of shaft alignment Small overall dimensions All of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design Gear box is used To obtain variable speeds To increase efficiency of system To produce torque For speed reduction To obtain variable speeds To increase efficiency of system To produce torque For speed reduction ANSWER DOWNLOAD EXAMIANS APP
Machine Design Endurance limit or fatigue limit is the maximum stress that a member can withstand for an infinite number of load applications without failure when subjected to Combined static and dynamic loading Static loading Dynamic loading Completely reversed loading Combined static and dynamic loading Static loading Dynamic loading Completely reversed loading ANSWER DOWNLOAD EXAMIANS APP
Machine Design In order to withstand resistance to wear, the best profile of gear is 20° full depth involute tooth 14½° stub tooth 14½° full depth involute tooth 20° involute stub tooth 20° full depth involute tooth 14½° stub tooth 14½° full depth involute tooth 20° involute stub tooth ANSWER DOWNLOAD EXAMIANS APP
Machine Design For crank shaft bearings, the ratio of the length of the journal to its diameter is_________. Equal to 1 Less than unity Greater than unity None of these Equal to 1 Less than unity Greater than unity None of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design The stress which vary from a minimum value to a maximum value of the same nature (i.e. tensile or compressive) is called Yield stress Repeated stress Fluctuating stress Alternating stress Yield stress Repeated stress Fluctuating stress Alternating stress ANSWER DOWNLOAD EXAMIANS APP
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