Machine Design A fast and loose pulley drive is used when Driven shaft is to be started or stopped whenever desired without interfering with the driving shaft Shafts are arranged parallel and rotate in the opposite directions Shafts are arranged at right angles and rotate in one definite direction Shafts are arranged parallel and rotate in the same directions Driven shaft is to be started or stopped whenever desired without interfering with the driving shaft Shafts are arranged parallel and rotate in the opposite directions Shafts are arranged at right angles and rotate in one definite direction Shafts are arranged parallel and rotate in the same directions ANSWER DOWNLOAD EXAMIANS APP
Machine Design In oilness bearings The oil film is maintained by supplying oil under pressure Grease required to be applied after some intervals Do not require external supply of lubricant The oil film pressure is generated only by the rotation of the journal The oil film is maintained by supplying oil under pressure Grease required to be applied after some intervals Do not require external supply of lubricant The oil film pressure is generated only by the rotation of the journal ANSWER DOWNLOAD EXAMIANS APP
Machine Design When a belt drive is transmitting maximum power, Effective tension is equal to centrifugal tension Effective tension is half of centrifugal tension Driving tension on tight side is twice the centrifugal tension Driving tension on slack side is equal to centrifugal tension Effective tension is equal to centrifugal tension Effective tension is half of centrifugal tension Driving tension on tight side is twice the centrifugal tension Driving tension on slack side is equal to centrifugal tension ANSWER DOWNLOAD EXAMIANS APP
Machine Design Maximum principal stress theory is applicable for Ductile materials Elastic materials Brittle materials All of these Ductile materials Elastic materials Brittle materials All of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design The maximum stress due to stress concentration in a bar having circular transverse hole, as compared to its static stress without hole will be 2 times more Same in both cases 4 times more 3 times more 2 times more Same in both cases 4 times more 3 times more ANSWER DOWNLOAD EXAMIANS APP
Machine Design According to I.B.R., shearing resistance required to shear off the rivet per pitch length (in double shear) is (where n = Number of rivets per pitch length) 1.875 × (π/4) d² × τ × n (π/4) d² × τ × n 2 × (π/4) d² × τ × n 3 × (π/4) d² × τ × n 1.875 × (π/4) d² × τ × n (π/4) d² × τ × n 2 × (π/4) d² × τ × n 3 × (π/4) d² × τ × n ANSWER DOWNLOAD EXAMIANS APP
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