Machine Design If a shaft made from ductile material is subjected to combined bending and twisting moment, calculations based on which one of the following failure theories will give the most conservative value? Maximum principal stress theory Maximum distortion energy theory Maximum shear stress theory Maximum strain energy theory Maximum principal stress theory Maximum distortion energy theory Maximum shear stress theory Maximum strain energy theory ANSWER DOWNLOAD EXAMIANS APP
Machine Design The power transmitted by the belt drive can be increased by Increasing the initial tension in the belt All of these Increasing wrap angle by using idler pulley Dressing the belt to increase the coefficient of friction Increasing the initial tension in the belt All of these Increasing wrap angle by using idler pulley Dressing the belt to increase the coefficient of friction ANSWER DOWNLOAD EXAMIANS APP
Machine Design If threads on a bolt are left hand, threads on nut will be Could be left or right hand Right hand with fine pitch Left hand with same pitch Right hand with same pitch Could be left or right hand Right hand with fine pitch Left hand with same pitch Right hand with same pitch ANSWER DOWNLOAD EXAMIANS APP
Machine Design The shear stress at a point in a shaft subjected to a torque is Directly proportional to the applied torque and the polar moment of inertia Directly proportional to the polar moment of inertia and to the distance of the point from the axis Directly proportional to the applied torque and inversely proportional to the polar moment of inertia Inversely proportional to the applied torque and the polar moment of inertia Directly proportional to the applied torque and the polar moment of inertia Directly proportional to the polar moment of inertia and to the distance of the point from the axis Directly proportional to the applied torque and inversely proportional to the polar moment of inertia Inversely proportional to the applied torque and the polar moment of inertia ANSWER DOWNLOAD EXAMIANS APP
Machine Design When the connected members are very yielding (soft gasket) as compared to the bolt, then the resultant load on the bolt will be equal to the Initial tension or external load, whichever is greater External load applied Sum of the initial tension and external load applied Initial tension Initial tension or external load, whichever is greater External load applied Sum of the initial tension and external load applied Initial tension ANSWER DOWNLOAD EXAMIANS APP
Machine Design Allen bolts are Used in aircraft application Provided with hexagonal depression in head Designed for shock load Self locking bolts Used in aircraft application Provided with hexagonal depression in head Designed for shock load Self locking bolts ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS