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Presence of nickel & chromium in steel does not raise its

A. Elastic limit

B. Machining properties

C. Ductility

D. Resilience

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  1. Water hammer is caused in steam carrying pipelines, because of
  2. Transformer cores are normally made from
  3. __________ is the hardest material out of the following.
  4. The 'transition temperature' for ductile to brittle behaviour of steel increases with increase in the…
  5. The ratio of thermal & electrical conductivity is same for all the metals at the same temperature; and…
  6. __________ of air does not increase with increase in temperature.
  7. The activity co-efficient of the solute in a dilute solution
  8. In a counter flow heat exchanger, hot fluid enters at 170°C & leaves at 150°C, while the cold…
  9. Sudden fall of atmospheric pressure by a large amount is an indication of the
  10. Alumina, silica, lime and iron oxide are the basic raw material for the manufacture of Portland cement.…
  11. Nusselt number is related to the Reynolds number (Re) in turbulent & laminar flow respectively as
  12. Oxygen cylinders used for autogenous (cutting/welding) purposes are
  13. Screws are specified by their __________ diameters.
  14. __________ is a special constituent of chlorophyll without which photosynthesis is not possible.
  15. The amount of water evaporated in kg per kg of fuel burnt in a boiler is called the __________ of a…
  16. __________ test can be termed as the semidestructive test.
  17. Joule-Thomson co-efficient is the ratio of
  18. Maraging steels derive their strength from the following mechanism:
  19. Materials having __________ lattice structure are usually the most ductile.
  20. __________ the exhaust gas is an indication of the incomplete combustion of fuel.
  21. The main reducing agent in iron blast furnace is
  22. Heat required to raise the temperature of a body by 1 °C is called its
  23. The product (s) of roasting of a sulphide ore is (are)
  24. Which of the following contributes maximum as main source of sulphur in the blast furnace charge?
  25. Pick out the wrong statement.
  26. Addition of silicon to cast iron
  27. Increasing sulphur content in pig iron tends to make it
  28. Consideration of the creep is the most important in case of the
  29. Carbide tipped cutting tools are manufactured by powder metallurgy techniques and have a composition…
  30. Materials having resistivity ranging from 1 to 100 ohm. cm is termed as