Machine Design In an oil lubricated journal bearing, the coefficient of friction between the journal and the bearing Becomes minimum at an optimum speed and then increases with further increase in speed Remains constant at all speeds Is minimum at zero speed and increases monotonically with increase in speed Is maximum at zero speed and decreases monotonically with increase in speed Becomes minimum at an optimum speed and then increases with further increase in speed Remains constant at all speeds Is minimum at zero speed and increases monotonically with increase in speed Is maximum at zero speed and decreases monotonically with increase in speed ANSWER DOWNLOAD EXAMIANS APP
Machine Design If the centre distance of the mating gears having involute teeth is varied within limits, the velocity ratio Decreases None of these Increases Remains unchanged Decreases None of these Increases Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Machine Design The load cup of a screw jack is made separate from the head of the spindle to Prevent the rotation of load being lifted Reduce the effort needed for lifting the working load Enhance the load carrying capacity of the jack Reduce the value of frictional torque Prevent the rotation of load being lifted Reduce the effort needed for lifting the working load Enhance the load carrying capacity of the jack Reduce the value of frictional torque ANSWER DOWNLOAD EXAMIANS APP
Machine Design When the length of the journal is equal to the diameter of the journal, then the bearing is said to be a Short bearing Long bearing Medium bearing Square bearing Short bearing Long bearing Medium bearing Square bearing ANSWER DOWNLOAD EXAMIANS APP
Machine Design In helical gears, the distance parallel to the axis, between similar faces of adjacent teeth, is called Normal pitch Axial pitch Module Diametral pitch Normal pitch Axial pitch Module Diametral pitch ANSWER DOWNLOAD EXAMIANS APP
Machine Design In designing a sleeve coupling, length of the sleeve is taken as (where d = Diameter of the shaft) 3.5 d d + 17 mm 2d + 20 mm 2d + 13 mm 3.5 d d + 17 mm 2d + 20 mm 2d + 13 mm ANSWER DOWNLOAD EXAMIANS APP
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