Machine Design The contact ratio is the ratio of Length of arc of recess to the circular pitch Length of path of contact to the circular pitch Length of arc of contact to the circular pitch Length of arc of approach to the circular pitch Length of arc of recess to the circular pitch Length of path of contact to the circular pitch Length of arc of contact to the circular pitch Length of arc of approach to the circular pitch ANSWER DOWNLOAD EXAMIANS APP
Machine Design Machine screws are Used to prevent relative motion between two 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 two 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 load cup of a screw jack is made separate from the head of the spindle to Reduce the effort needed for lifting the working load Reduce the value of frictional torque Prevent the rotation of load being lifted Enhance the load carrying capacity of the jack Reduce the effort needed for lifting the working load Reduce the value of frictional torque Prevent the rotation of load being lifted Enhance the load carrying capacity of the jack ANSWER DOWNLOAD EXAMIANS APP
Machine Design If threads on a bolt are left hand, threads on nut will be Left hand with same pitch Could be left or right hand Right hand with same pitch Right hand with fine pitch Left hand with same pitch Could be left or right hand Right hand with same pitch Right hand with fine pitch ANSWER DOWNLOAD EXAMIANS APP
Machine Design A tapered key which fits in a key way in the hub and the bottom of which is shaped to fit the curved surface of the shaft, is known as, Hollow key None of these Hollow saddle key Soft key Hollow key None of these Hollow saddle key Soft key ANSWER DOWNLOAD EXAMIANS APP
Machine Design If p = bearing pressure on projected bearing area, z = absolute viscosity of lubricant, and N = speed of journal, then the bearing characteristic number is given by p/ZN Z/pN N/Zp ZN/p p/ZN Z/pN N/Zp ZN/p ANSWER DOWNLOAD EXAMIANS APP
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