Machine Design The initial tension (in newtons) in a bolt used for making a fluid tight joint like steam engine cover joints, is calculated by the relation (where d = Nominal diameter of bolt in mm) 2840 d 1420 d 1680 d 2080 d 2840 d 1420 d 1680 d 2080 d 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 Alternating stress Repeated stress Fluctuating stress Yield stress Alternating stress Repeated stress Fluctuating stress ANSWER DOWNLOAD EXAMIANS APP
Machine Design The strap end of a connecting rod of steam engine is joined by Gib of cotter joint Sleeve and cotter joint Spigot socket cotter joint Knuckle joint Gib of cotter joint Sleeve and cotter joint Spigot socket cotter joint Knuckle joint ANSWER DOWNLOAD EXAMIANS APP
Machine Design Which of the following statement is correct regarding power screws? If the friction angle is less than the helix angle of the screw, then the efficiency will be more than 50% The efficiency of a self locking screw can not be more than 50% Both (A) and (B) 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% The efficiency of a self locking screw can not be more than 50% Both (A) and (B) The efficiency of Acme (trapezoidal) thread is less than that of a square thread ANSWER DOWNLOAD EXAMIANS APP
Machine Design In designing a key, it is assumed that the distribution of forces along the length of key Is uniform throughout Varies exponentially, being more at the torque-input end Varies exponentially, being less at the torque-input end Varies linearly Is uniform throughout Varies exponentially, being more at the torque-input end Varies exponentially, being less at the torque-input end Varies linearly 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 has a lower curvature than the outer side It is subjected to a higher stress than the outer side It is subjected to a higher cyclic loading than the outer side It is more stretched than the outer side during the manufacturing process It has a lower curvature than the outer side It is subjected to a higher stress than the outer side It is subjected to a higher cyclic loading than the outer side ANSWER DOWNLOAD EXAMIANS APP
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