The abrasive recommended for grinding materials of low tensile strength is

A. Silicon carbide

B. Aluminium oxide

C. Sand stone

D. Diamond

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  1. The operation of producing grooves around the periphery of a cylindrical or conical workpiece is called
  2. The size of abrasive grain required in a grinding wheel depends upon the
  3. A dynamometer is a device used for the measurement of
  4. A single point tool has
  5. If the helix angle of the drill is made _________ 30°, then the torque required to drive the drill…
  6. A broach has
  7. Which of the following statement is correct for orthogonal cutting system?
  8. Climb milling is chosen while machining because
  9. In orthogonal turning of a low carbon steel bar of diameter 150 mm with uncoated carbide tool, the cutting…
  10. The factor responsible for the formation of discontinuous chips is
  11. In an interchangeable assembly, shafts of size 25.000 -0.010⁺⁰⁰⁴⁰…
  12. Soft materials can not be economically ground due to
  13. A mandrel is used to hold
  14. Gear lapping is an operation
  15. The increase in depth of cut and feed rate __________ surface finish.
  16. As the cutting speed increases, the tool cutting forces
  17. In order to obtain a surface finish in the range of 0.75 μm to 1.25 μm , the operation used…
  18. Crater wear leads to
  19. The type of tool used on milling machine and broaching machine is
  20. Which of the following statement is wrong about ultrasonic machining?
  21. In metal machining, the zone where the heat is generated due to friction between the moving chip and…
  22. It is desired to perform the operations like drilling, reaming, counter-boring etc. on a work piece.…
  23. A lathe with four steps on the cone pulley and with back-gears will have
  24. The example of snag grinding is
  25. Tumbler gears in lathe are used to
  26. In a metal arc welding process, metal transfer across the arc may take place by a method of material…
  27. The cutting force in up milling __________ per tooth movement of the cutter.
  28. The tap used to cut threads in a blind hole is
  29. During normalizing process of steel, the specimen is heated
  30. The top and sides of the table of a shaper usually have