If the cutting speed is increased, then the built-up-edge Becomes smaller and finally does not form at all Becomes longer Has nothing to do with speed May or may not form TRUE ANSWER : ? YOUR ANSWER : ?
Thread grinding requires work speed from 1 to 3 m/min 14 to 20 m/min 5 to 10 m/min 10 to 14 m/min TRUE ANSWER : ? YOUR ANSWER : ?
A fine grained grinding wheel is used to grind Hard and brittle materials Hard and ductile materials Soft and brittle materials Soft and ductile materials TRUE ANSWER : ? YOUR ANSWER : ?
Ceramic tools are fixed to tool body by Welding Brazing Clamping Soldering TRUE ANSWER : ? YOUR ANSWER : ?
Larger than 15° side cutting edge angle Produces chipping and decreases tool life Results in excessive stress concentration and greater heat generation Decreases tool life Increases tool life TRUE ANSWER : ? YOUR ANSWER : ?
The maximum production of small and slender parts is done by Capstan lathe Watch maker's lathe Sliding head stock automatic lathe Multi-spindle automatic lathe TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following statement is wrong as regard to down milling? It can not be used on old machines due to backlash between the feed screw of the table and the nut. The chips are disposed off easily and do not interfere with the cutting. The coolant can be poured directly at the cutting zone where the cutting force is maximum. The surface milled appears to be slightly wavy. TRUE ANSWER : ? YOUR ANSWER : ?
Tumbler gears in lathe are used to Drill a workpiece Cut gears Give desired direction of movement to the lathe carriage Reduce the spindle speed TRUE ANSWER : ? YOUR ANSWER : ?
In order to grind soft material Medium grained grinding wheel is used Coarse grained grinding wheel is used Any one of these Fine grained grinding wheel is used TRUE ANSWER : ? YOUR ANSWER : ?
In transverse grinding The work rotates in a fixed position as the wheel feeds to produce cylinders longer than the width of wheel face The work is reciprocated as the wheel feeds to produce cylinders longer than the width of wheel face The work rotates in a fixed position as the wheel feeds to produce cylinders equal to or shorter than the width of wheel face The work is reciprocated as the wheel feeds to produce cylinders shorter than the width of wheel face TRUE ANSWER : ? YOUR ANSWER : ?