Process Planning and Cost Estimation MCQs | Page - 1

 in machining process, some raw material is wasted in or in order to perform different operations like drilling, turning etc.

 drilling is included in machining process. for drilling, the drill is rotated with a downward pressure causing the tool to penetrate into the material.

 total production increase with the use of jigs and fixture. jigs are holding device and fixture are generally used for the bigger work piece.

 accuracy of parts increases by use of jigs and fixture. jigs are holding device and fixture are generally used for the bigger work piece.

 interchangeability of parts increases by use of jigs and fixture. jigs are holding device and fixture are generally used for the bigger work piece.

 less skilled labour required. interchangeability of parts increases by use of jigs and fixture. jigs and fixture increases accuracy. jigs are holding device and fixture are generally used for bigger work piece.

 fixture do not guide cutting tool. jigs and fixture increases accuracy. jigs are holding device and fixture are generally used for bigger work piece.

 all of the mentioned are correct about jigs. jigs and fixture increases accuracy. jigs are holding device and fixture are generally used for bigger work piece.

 jigs and fixture increases accuracy. jigs are holding device and fixture are generally used for bigger work piece. jigs are preferred over fixture in drilling because they also help in guidance of tool.

 work piece has 16 degree of freedom. it can have 16 different movements.