Magnesium is present in

A. Haemoglobin

B. Chlorophyll

C. Hypo solution

D. None of these

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  1. Which of the following parameters is not responsible for the heat loss from a hot steam carrying bare…
  2. Basic open hearth furnace (BOF) is not used for producing __________ steel.
  3. A metal having a Poisson's ratio = 0.3 is elastically deformed under uniaxial tension. If the longitudinal…
  4. The boiling & freezing points on a newly defined temperature scale in degree 'D' are 400°D & 100°D…
  5. On being hit with a hammer, __________ will readily fracture.
  6. Mho's scale of hardness, which consists of 10 standard minerals is used for the measurement of __________…
  7. Electrolytic reduction cell used for conversion of calcined Al2O3 to Al is a carbon lined furnace operating…
  8. Hot extrusion process is not used for making
  9. Two solutions A1 & A2 have pH value of 2 & 6 respectively. It implies that the solution
  10. Resilience of a bolt can be increased by increasing its
  11. Globular form of cementite is formed during the __________ process.
  12. Thermit welding uses the following energy source.
  13. Nitriding of a steel part does not increase its
  14. Which of the following properties of a solid is not dependent on crystal imperfection?
  15. The delivery pressure of boiler feed water pump compared to the boiler steam pressure is
  16. In troposphere (the weather domain), the temperature 't' at height 'h' above the sea level in metres…
  17. Out of the following, the __________ pipe has the least corrosion resistance.
  18. The property of material, by which a given amount of energy is absorbed by it, without plastic deformation,…
  19. Which of the, following is not associated with the functioning of a petrol engine?
  20. Calorific value of __________ are almost same.
  21. When an isolated thermodynamic system executes a process,
  22. Addition of __________ to steel does not impart hardness.
  23. The product of a commercial direct reduction process is
  24. A solid aluminium ball, when quenched in a water bath maintained at 40°C, cools down from 550°C…
  25. Identify the correct statement with reference to the extractive metallurgy of aluminium.
  26. Stainless steel is welded with difficulty because of
  27. The difference between gross & net calorific values of fuel is due to the
  28. The behaviour of a metal specimen, which when plastically strained in tension reduces its yield stress…
  29. Volume of blast furnace slag is about __________ times the volume of hot metal (pig iron) of the same…
  30. Wrought iron is not