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An expendable pattern is used in

A. Slush casting

B. Squeeze casting

C. Centrifugal casting

D. Investment casting

Correct Answer : D.


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  2. In oblique cutting system, the maximum chip thickness
  3. In drilling operation, the metal is removed by
  4. The snag grinding is done
  5. The chamfering is an essential operation after
  6. A __________ grinding wheel is used to grind soft materials.
  7. A lathe with four steps on the cone pulley and with back-gears will have
  8. The tail stock set over method of taper turning is preferred for
  9. The tool material, for faster machining, should have
  10. As the cutting speed increases, the tool cutting forces
  11. Crater wear is mainly due to the phenomenon known as
  12. The hardness of a grinding wheel is determined by the
  13. Any number of equal divisions can be obtained on milling machine by
  14. When the end of a tap is tapered for about three or four threads, it is known as a
  15. Which of the following statement is correct about nose radius?
  16. The cutting speed for drilling aluminium, brass and bronze with high speed steel drills varies from
  17. In down milling, the thickness of chip is
  18. In order to obtain a surface finish in the range of 0.75 μm to 1.25 μm , the operation used…
  19. In a plain milling cutter, the chip space between the back of one tooth and the face of the next tooth…
  20. Gear burnishing is a process for
  21. In abrasive jet machining, as the distance between the nozzle tip and the work surface increases, the…
  22. The type of reamer used for reaming soft aluminium or copper, is
  23. Climb milling is chosen while machining because
  24. For machining a mild steel workpiece using carbide tool, the maximum material will be removed at a temperature…
  25. The process of improving the cutting action of the grinding wheel is called
  26. Which of the following operations can be performed with milling cutters?
  27. In ultrasonic machining, tool is made of
  28. The high cutting speed and large rake angle of the tool will result in the formation of
  29. The lead screw of a lathe has _________ threads.
  30. Crater wear occurs mainly on the