Machine Design In designing a flange coupling, the pitch circle diameter of bolts is taken as (where d = Diameter of the shaft) 2 d 5 d 4 d 3 d 2 d 5 d 4 d 3 d ANSWER DOWNLOAD EXAMIANS APP
Machine Design When a metal or alloy is cold worked, Its hardness and strength increases Both (A) and (B) None of these It is worked below recrystallization temperature Its hardness and strength increases Both (A) and (B) None of these It is worked below recrystallization temperature ANSWER DOWNLOAD EXAMIANS APP
Machine Design Two shafts of the same length and material are joined in series. If the ratio of their diameters is 2, then the ratio of their angles of twist will be 4 2 8 16 4 2 8 16 ANSWER DOWNLOAD EXAMIANS APP
Machine Design Which of the following statement is correct regarding power screws? 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 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% ANSWER DOWNLOAD EXAMIANS APP
Machine Design When compared to the rod of the same diameter and material, a wire rope Does not provide much warning before failure Provides much greater time for remedial action before failure Has a much smaller load carrying capacity Is less flexible Does not provide much warning before failure Provides much greater time for remedial action before failure Has a much smaller load carrying capacity Is less flexible ANSWER DOWNLOAD EXAMIANS APP
Machine Design The power transmitted by the belt drive can be increased by All of these Increasing wrap angle by using idler pulley Increasing the initial tension in the belt Dressing the belt to increase the coefficient of friction All of these Increasing wrap angle by using idler pulley Increasing the initial tension in the belt Dressing the belt to increase the coefficient of friction ANSWER DOWNLOAD EXAMIANS APP
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