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For separating small pieces of metal from engine oil of a car, the best separating technique is the

A. Chromatography

B. Evaporation

C. Filtration

D. Fractional distillation

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

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  1. Fire in fuel gas pipelines is extinguished most effectively by
  2. __________ remains constant during the adiabatic cooling of moist air.
  3. Annealing of white cast iron produces __________ iron.
  4. Large diameter reinforced cement concrete (RCC) pipes are generally joined by __________ joint.
  5. A steam pipe is intended to be insulated with two layers of insulating materials of different thermal…
  6. Frother is added in the froth floatation cell used in ore beneficiation to stabilise the air bubbles…
  7. The critical pressure at which the latent heat of vaporisation of steam becomes zero is __________ Kg/cm2.
  8. Coating thickness in case of galvanising of steel sheet generally corresponds to the deposition of __________…
  9. __________ circuit is most commonly used to measure strain with the help of a strain gauge.
  10. Wrought iron does not have
  11. Chlorine acts as a bleaching agent only in the presence of
  12. Presence of nickel & chromium in steel does not raise its
  13. at 1173E; at equilibrium, what will be the number of moles of CO gas required to reduce one mole of…
  14. One face of a furnace wall is at 1030°C and the other face is exposed to room temperature (30°C).…
  15. The 'transition temperature' for ductile to brittle behaviour of steel increases with increase in the…
  16. Addition of __________ to steel does not help in improving its machinability.
  17. For a small scale toy factory, the fixed cost per month is Rs. 5000/-. The variable cost per toy is…
  18. A jig is used while __________ a hole.
  19. Dew point temperature always gives an indication of the __________ of the moist air.
  20. As per the Indian boiler regulation (IBR), the type of joint preferred for the circumferential joint…
  21. Dies for wire drawing are generally made of
  22. Compressed dry air is used as the cutting fluid, while machining
  23. Carbide tipped cutting tools are manufactured by powder metallurgy techniques and have a composition…
  24. Pipelines carrying various utilities in chemical industries are identified by their colour codes. The…
  25. Thermal conductivity of a material does not depend upon its
  26. Production of one ton of paper in Indian paper industry consumes about __________ kWh of electricity.
  27. The co-ordination number in simple cubic structure is
  28. The 'laughing gas' is
  29. The maximum stress below which a material can withstand an infinite number of cycle of stress, is termed…
  30. Silicon percentage in silicon steel used for electrical equipments is about