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Which type of motor is not used in axis or spindle drives of CNC machine tools?

A. Induction motor

B. DC servo motor

C. Stepper motor

D. Linear servo motor

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  1. The tool made of cemented carbide wear out faster at
  2. The enlarging of an existing circular hole with a rotating single point tool is called
  3. Shrinkage allowance on pattern is provided to compensate for shrinkage when
  4. Broaching is applied for machining
  5. The negative rake is usually provided on
  6. A __________ grinding wheel is used to grind soft materials.
  7. In Oxyacetylene gas welding, temperature at the inner cone of the flame is around
  8. Which of the following statement is correct in regard to centreless grinding?
  9. For turning small taper on long workpiece, the suitable method is
  10. In order to obtain a surface finish in the range of 0.75 μm to 1.25 μm , the operation used…
  11. In American Standard Association (A S A) system, if the tool nomenclature is 8-6-5-5-10-15-2 mm, then…
  12. In ECM, the material removal is due to
  13. Ceramic cutting tools are
  14. During the execution of a CNC part program block NO20 GO2 X45.0 Y25.0 R5.0 ; the type of tool motion…
  15. The velocity of tool along the tool face is known as
  16. The correct sequence of tool materials in increasing order of their ability to retain their hot hardness…
  17. If the cutting speed is increased, then the built-up-edge
  18. Dielectric is used in
  19. Side rake angle of a single point cutting tool is the angle
  20. The maximum possible draft in cold rolling of sheet increases with the
  21. Jigs are used
  22. In reaming process
  23. A left hand tool on a lathe cuts most efficiently when it travels
  24. Which of the following statement is correct about nose radius?
  25. Match the items of List-I (Equipment) with the items of List-II (Process) and select the correct answer…
  26. Which of the following parameters govern the value of shear angle in continuous chip formation?
  27. A grinding wheel becomes glazed (i.e. cutting edge takes a glasslike appearance) due to
  28. Which of the following statement is correct regarding grinding of high carbon steel?
  29. In ultrasonic machining, tool is made of
  30. What is the type of shielding gas for GTAW (Gas Tungsten Arc Welding) used for carbon steels only called?