Surface grinding is done to produce Flat surface Internal cylindrical holes Tapered surface All of the listed here TRUE ANSWER : ? YOUR ANSWER : ?
A dense structure of a grinding wheel is used for Finishing cuts All of these Hard materials Brittle materials TRUE ANSWER : ? YOUR ANSWER : ?
Which type of motor is not used in axis or spindle drives of CNC machine tools? Induction motor Linear servo motor DC servo motor Stepper motor TRUE ANSWER : ? YOUR ANSWER : ?
The cutting speed is maximum while machining _________ with a high speed steel tool. Mild steel Cast iron Aluminium Brass TRUE ANSWER : ? YOUR ANSWER : ?
If the cutting speed is increased, then the built-up-edge Becomes smaller and finally does not form at all May or may not form Becomes longer Has nothing to do with speed TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following operations is carried out at a minimum cutting velocity if the machines are equally rigid and the tool work materials are the same? Grinding Turning Boring Milling TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following statement is correct regarding grinding of high carbon steel? Aluminium oxide wheels are employed. All of these The grinding wheel has to be of open structure. Grinding at high speed results in the reduction of chip thickness and cutting forces per grit. TRUE ANSWER : ? YOUR ANSWER : ?
High speed steel cutting tools operate at cutting speeds _________ than carbon steel tools. 2 to 3 times higher 8 to 20 times higher 5 to 8 times higher 2 to 3 times lower TRUE ANSWER : ? YOUR ANSWER : ?
Drilling is an example of Orthogonal cutting Simple cutting Uniform cutting Oblique cutting TRUE ANSWER : ? YOUR ANSWER : ?