Machine Design When a bolt and nut is made of mild steel, then the effective height of nut is made equal to (where d = Nominal diameter of bolt) 0.5 d 0.75 d d 1.25 d 0.5 d 0.75 d d 1.25 d ANSWER DOWNLOAD EXAMIANS APP
Machine Design The rolling contact bearings as compared to sliding contact bearings have Low starting and low running friction except at very high speeds All of these Small overall dimensions Accuracy of shaft alignment Low starting and low running friction except at very high speeds All of these Small overall dimensions Accuracy of shaft alignment ANSWER DOWNLOAD EXAMIANS APP
Machine Design Which of the following statement is correct regarding power screws? The efficiency of a self locking screw can not be more than 50% Both (A) and (B) 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 The efficiency of a self locking screw can not be more than 50% Both (A) and (B) 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 taper on cotter varies from 1 in 15 to 1 in 10 1 in 48 to 1 in 24 1 in 24 to 1 in 20 1 in 32 to 1 in 24 1 in 15 to 1 in 10 1 in 48 to 1 in 24 1 in 24 to 1 in 20 1 in 32 to 1 in 24 ANSWER DOWNLOAD EXAMIANS APP
Machine Design The cracks in helical springs used in railway carriages usually start on the inner side of the coil because of the fact that It is more stretched than the outer side during the manufacturing process It is subjected to a higher cyclic loading than the outer side It is subjected to a higher stress than the outer side It has a lower curvature than the outer side It is more stretched than the outer side during the manufacturing process It is subjected to a higher cyclic loading than the outer side It is subjected to a higher stress than the outer side It has a lower curvature than the outer side ANSWER DOWNLOAD EXAMIANS APP
Machine Design Fibrous fracture occurs in Brittle material Ductile material Elastic material Hard material Brittle material Ductile material Elastic material Hard material ANSWER DOWNLOAD EXAMIANS APP
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