Home

Sacrificial anode method is used in the protection of pipelines which are buried underground. Sacrificial anode

A. Occurs higher in the electro-chemical series of metals

B. Is exemplified by magnesium plate

C. Is much cheaper than the cathodic base material to be guarded against corrosion

D. All (A), (B) & (C)

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

You can do it
  1. Silicon percentage in acid resistant cast iron is about
  2. Large diameter reinforced cement concrete (RCC) pipes are generally joined by __________ joint.
  3. Which of the following test is used for distinguishing among dry oils, semi-drying oils and non drying…
  4. A fire tube boiler is limited to a maximum steam pressure of about __________ kg/cm2.
  5. Steel produced from phosphatic iron is __________ in nature.
  6. High relative humidity decreases the evaporative process and as the temperature is increased, the relative…
  7. Euler number is defined as the ratio of inertia force to __________ force.
  8. Cupola produces __________ iron.
  9. Thermistors are used in __________ devices.
  10. Oxide layer formed on the non-ferrous metal surface after its annealing is
  11. Between 230 and 370°C, blue brittleness is caused in mild steel because of the
  12. Fibre reinforced plastic (FRP) are
  13. Dryness fraction of dry steam is
  14. The co-ordination number in simple cubic structure is
  15. Transition from laminar flow to turbulent flow in fluid flow through a pipe does not depend upon the
  16. Air/fuel ratio on molar (volume) basis for combustion of methane with theoretical quantity of air with…
  17. The same volume of all gases is representative of their
  18. In connection with corrosion of metals, passivation is the process that
  19. Viscoelastic behaviour is observed in __________ materials.
  20. Constituents of stellite are
  21. __________ property of steel increases by addition of large amount of silicon in it.
  22. Adhesives
  23. Glycerine is used as a coolant in cooling of some engines instead of water, because
  24. __________ of hard alloy and tool steel is done to make it easily machinable.
  25. Steel rods are normally used for concrete reinforcement because concrete and steel have almost equal
  26. Pick out the wrong statement about the machinability of metals. Machinability of a metal
  27. Load cells used for the measurement of weight has
  28. __________ joint is usually used for joining cast iron pipes mostly used for temporary pipelines, where…
  29. Aluminium is extracted from
  30. Heat release during phase change is observed in case of a/an