Chapter:

lathe-machines-shaping-and-slotting

1. What will be value of half taper angle in degrees if diameter of big end is 500mm and diameter of small end is 60mm for a 1m long job?


2. Self centered chuck has ___ number of jaws.


3. The job of total length 300mm is tapered turned on la using tailstock set over method. The two diameters obtained are 80mm and 500mm and length of taper was 200mm only. Tail stock set over is equal to


4. Which of following serves as a housing for driving pulley, and back gears?


5. Let screw of 2mm pitch is needed to be cut on la machine. Lead screw of la has pitch of 6mm. Which of following statement is correct?


6. A thread has number of starts equal to one. Which of following is most correct about thread?


7. Which of following part of la move in a direction normal to axis of spindle?


8. Speed of lead screw decreases in relative to speed of spindle as many times required pitch is smaller than pitch of lead screw.


9. In surface finishing operation one should use a sharp tool with a __ feed and ___ Speed of rotation of job.


10. Which of following arrangement is used in movement of carriage along ways?


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