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  1. Which of the following emissions in the exhaust gas of an I.C. engine causes the formation of photochemical…
  2. The dew point temperature lines on psychrometric charts are straight inclined sloping downwards to the…
  3. __________ is not used as a material of construction in thermocouples.
  4. Maraging steels derive their strength from the following mechanism:
  5. Pick out the wrong statement
  6. For which pair of the fuel gases, calorific value (C.V.) of one fuel is almost double that of the other…
  7. Material of construction of foundry crucible is
  8. Addition of silicon to cast iron
  9. Which of the following forces does not act on a fluid at rest?
  10. Increase in temperature, in general results in the
  11. The fugacity of liquid water at 298 K is approximately 3171 Pa. Considering the ideal heat of vaporisation…
  12. What is the range of tempering temperature (°C) for most of the materials?
  13. Exposure to __________ accelerates the degradation of plastics.
  14. With increase in temperature, the electrical conductivity of semiconductors
  15. The effect of friction on the flow of steam through a nozzle is to decrease the __________ of steam.
  16. Lead is added to 60:40 brass primarily to improve
  17. For a first order chemical reaction, the concentration of the reactant decreases __________ with time.
  18. A dummy activity is used in PERT network to describe the
  19. Wrought iron is never shaped by
  20. Faraday's law of electrolysis is related to the
  21. Minimum safe distance between two liquid fuel storage tanks is equal to (where, H = height of the tank)
  22. Atomic __________ is a whole number for an element.
  23. With increase in __________ Knocking tendency in a spark ignition petrol engine decreases.
  24. Carbon supply in pack carburising process is in the form of
  25. Which of the following is not used as a bearing material?
  26. Super conduction in metals is observed at a temperature of __________ °K.
  27. __________ the exhaust gas is an indication of the incomplete combustion of fuel.
  28. Presence of nickel & chromium in steel does not raise its
  29. __________ pipe is the most suitable for carrying sanitary drainage.
  30. Silicon crystal can be converted to p-type semiconductor by doping with