Machine Design The allowable static stress for steel gears is approximately __________ of the ultimate tensile stress. One-half One-third Double One-fourth One-half One-third Double One-fourth ANSWER DOWNLOAD EXAMIANS APP
Machine Design Set screws are Used to prevent relative motion between parts Slotted for a screw driver and generally used with a nut Similar to small size tap bolts except that a greater variety of shapes of heads are available Similar to stud Used to prevent relative motion between parts Slotted for a screw driver and generally used with a nut Similar to small size tap bolts except that a greater variety of shapes of heads are available Similar to stud ANSWER DOWNLOAD EXAMIANS APP
Machine Design The centrifugal tension in belts Increases the power transmitted Decreases the power transmitted Increase the wrap angle Increases the belt tension without increasing power transmission Increases the power transmitted Decreases the power transmitted Increase the wrap angle Increases the belt tension without increasing power transmission ANSWER DOWNLOAD EXAMIANS APP
Machine Design The railway carriage couplings have Acme threads Buttress threads Knuckle threads Square threads Acme threads Buttress threads Knuckle threads Square threads ANSWER DOWNLOAD EXAMIANS APP
Machine Design A bolt of uniform strength can be developed by Keeping the nominal diameter of threads equal to the diameter of unthreaded portion of the bolt None of these Keeping the core diameter smaller than the diameter of the unthreaded portion Keeping the core diameter of threads equal to the diameter of unthreaded portion of the bolt Keeping the nominal diameter of threads equal to the diameter of unthreaded portion of the bolt None of these Keeping the core diameter smaller than the diameter of the unthreaded portion Keeping the core diameter of threads equal to the diameter of unthreaded portion of the bolt ANSWER DOWNLOAD EXAMIANS APP
Machine Design When a hole of diameter ‘d’ is punched in a metal of thickness 't', then the force required to punch a hole is equal to (where τu = Ultimate shear strength of the material of the plate) πd.t.τu π/4 × d² × tτu π/4 × d².τu t.τu πd.t.τu π/4 × d² × tτu π/4 × d².τu t.τu ANSWER DOWNLOAD EXAMIANS APP
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