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The softness or hardness of a grinding wheel depends upon the type & amount of bonding material used. For general purpose cutter grinding __________ grinding wheel is normally used.

A. Hard

B. Soft

C. Silicon carbide

D. Aluminium oxide

Please do not use chat terms. Example: avoid using "grt" instead of "great".

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  1. A material is capable of resisting softening at high temperature, because of its property termed as
  2. A material subjected __________ must have high resilience.
  3. X-rays are
  4. If the head is doubled in & centrifugal pump, the power required will increase in the ratio of
  5. When the wavelength of incident X-rays increases, the angle of diffraction
  6. Which of the following is a boiler accessory i.e., not a boiler mounting?
  7. Nusselt number is related to Grashoff number (Gr) in turbulent & laminar flow respectively, in respect…
  8. As the fluid flow rate increases, the float of the Rotameter
  9. Principal alloying element in Elinvar (used for making hair springs for watches) is
  10. Annealing of cast iron
  11. In case of condensers & evaporators operating under given terminal conditions, LMTD (logarithmic mean…
  12. Lead is added to 60:40 brass primarily to improve
  13. With increase in impurities in metals, their corrosion resistances
  14. Materials having resistivity ranging from 1 to 100 ohm. cm is termed as
  15. Titanium is produced by __________ of Ti Cl4.
  16. Nuclear fission of one atom of uranium-235 produces the energy equivalent to about __________ MeV.
  17. Out of the following, the most malleable material is
  18. Powder metallurgy technique is used in the production of __________ tools.
  19. For an ideal gas, Cp - Cv is
  20. __________ of austenite decreases the hardenability in steel.
  21. Super conduction in metals is observed at a temperature of __________ °K.
  22. At the point of boundary layer separation in fluid flow, the
  23. Hot extrusion of aluminium is done in the temperature range of __________ °C.
  24. A material being tested for endurance strength is subjected to the __________ load.
  25. According to thermodynamic Fahrenheit scale, the fundamental interval between ice point to steam point…
  26. Annealing of white cast iron produces __________ iron.
  27. Atomic __________ is a whole number for an element.
  28. The phenomenon occurring during explosion of a hydrogen bomb is
  29. Leakage in a cooking gas cylinder is detected by
  30. Maximum permissible air velocity in pipelines is about __________ metre/second.