Home

Viscosity index improver (like polystyrene or polyisobutylene) is added to lubricant to

A. Reduce its viscosity

B. Increase its viscosity

C. Reduce the variation in its viscosity with temperature

D. Increase the variation in its viscosity with temperature

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

You can do it
  1. Which of the following is a constituent of vinegar?
  2. Chemical name of 'alum' is
  3. Hydrazine (N2H4) is used mainly as a/an
  4. Pick out the wrong statement pertaining to the properties of glasses. Glasses generally have
  5. Epoxy resin
  6. Phosphate rock is a raw material for the manufacture of
  7. Producer gas consists mainly of
  8. Which is a high grade pulp?
  9. Thermal pyrolysis of ethylene dichloride produces
  10. Laboratory glass wares which reacts with hydrofluoric acid, are made of the __________ glass.
  11. Viscose rayon is
  12. Ethyl alcohol cannot be produced
  13. Main constituent of limestone is
  14. Permanent hardness of water can be removed by
  15. Ore concentration by froth floatation utilises the __________ of ore particles.
  16. __________ is produced using Polycondensation reaction.
  17. Insulin is an __________ drug.
  18. More than 100 percent of __________ is present in oleum.
  19. Catalytic oxidation of naphthalene produces
  20. Main constituents of natural rubber is
  21. Flux addition during smelting of ore is done to
  22. Polycaprolactam is commercially known as
  23. Which of the following is used as a binding material in soap to improve soap texture?
  24. The function of gypsum addition during cement making is to
  25. Catalyst used in the manufacture of sulphuric acid by chamber & contact processes are respectively
  26. Which of the following is an unsaturated fatty acid?
  27. Phenol formaldehyde
  28. Which of the following processes can remove both temporary as well as permanent hardness of water?
  29. Diaphragm electrolytic cell as compared to mercury electrolytic cell
  30. Zeolite is used in the