Machine Design The cross-section of the arm of a bell crank lever is Elliptical I-section Any one of these Rectangular Elliptical I-section Any one of these Rectangular ANSWER DOWNLOAD EXAMIANS APP
Machine Design Two shafts ‘A’ and ‘B’ under pure torsion are of identical length and identical weight and are made of the same material. The shaft ‘A’ is solid and the shaft ‘B’ is hollow. We can say that Shaft B is better than shaft A Both the shafts are equally good None of these Shaft A is better than shaft B Shaft B is better than shaft A Both the shafts are equally good None of these Shaft A is better than shaft B ANSWER DOWNLOAD EXAMIANS APP
Machine Design The endurance or fatigue limit is defined as the maximum value of the stress which a polished standard specimen can withstand without failure, for infinite number of cycles, when subjected to Static as well as dynamic load Static load Completely reversed load Dynamic load Static as well as dynamic load Static load Completely reversed load Dynamic load ANSWER DOWNLOAD EXAMIANS APP
Machine Design The surface finish factor for a mirror polished material is 0.85 1 0.65 0.45 0.85 1 0.65 0.45 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% The efficiency of Acme (trapezoidal) thread is less than that of a square thread If the friction angle is less than the helix angle of the screw, then the efficiency will be more than 50% Both (A) and (B) The efficiency of a self locking screw can not be more than 50% The efficiency of Acme (trapezoidal) thread is less than that of a square thread If the friction angle is less than the helix angle of the screw, then the efficiency will be more than 50% ANSWER DOWNLOAD EXAMIANS APP
Machine Design The included angle for the British Association thread is 55° 60° 47.3° 29° 55° 60° 47.3° 29° ANSWER DOWNLOAD EXAMIANS APP
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