Machine Design Which of the following screw thread is used for power transmission in one direction only? Acme threads Multiple threads Square threads Buttress threads Acme threads Multiple threads Square threads Buttress threads ANSWER DOWNLOAD EXAMIANS APP
Machine Design In the case of an elastic bar fixed at upper end and loaded by a falling weight at lower end, the shock load produced can be decreased by Would depend upon other factors Decreasing the cross-section area of bar Increasing the cross-section area of bar Remain unaffected with cross-section area Would depend upon other factors Decreasing the cross-section area of bar Increasing the cross-section area of bar Remain unaffected with cross-section area ANSWER DOWNLOAD EXAMIANS APP
Machine Design When the screw in a mechanical screw jack rotates, the load kept on the top of it moves Axially upwards Axially upwards or downwards Axially downwards None of these Axially upwards Axially upwards or downwards Axially downwards None of these ANSWER DOWNLOAD EXAMIANS APP
Machine Design Cast iron pipes are mainly used In water and sewage systems In pressure lubrication systems on prime movers All of these For conveying steam In water and sewage systems In pressure lubrication systems on prime movers All of these For conveying steam ANSWER DOWNLOAD EXAMIANS APP
Machine Design In worm, gears, pitch lead angle is Half the angle between two inclined faces in axial plane The angle between the tangent to the pitch helix and the plane of rotation None of these The angle between the tangent to the pitch helix and an element of the cylinder Half the angle between two inclined faces in axial plane The angle between the tangent to the pitch helix and the plane of rotation None of these The angle between the tangent to the pitch helix and an element of the cylinder ANSWER DOWNLOAD EXAMIANS APP
Machine Design The load cup of a screw jack is made separate from the head of the spindle to Enhance the load carrying capacity of the jack Reduce the effort needed for lifting the working load Prevent the rotation of load being lifted Reduce the value of frictional torque Enhance the load carrying capacity of the jack Reduce the effort needed for lifting the working load Prevent the rotation of load being lifted Reduce the value of frictional torque ANSWER DOWNLOAD EXAMIANS APP
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