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  1. The expected efficiency of a single riveted lap joint is of the order of 50%. If the thickness of the…
  2. Ferromagnetic materials owe their properties to __________ inner sub-shells.
  3. Hardening of steel is not possible, unless it is heated __________ critical point.
  4. Water hammer is caused in steam carrying pipelines, because of
  5. Square steel key is normally strong in failure by shear & crushing. Keys are normally made of __________…
  6. When an isolated thermodynamic system executes a process,
  7. Change in volume of metals from absolute zero temperature to their melting points is
  8. Nitriding of a steel part does not increase its
  9. Matte smelting is used in the extraction of
  10. A cylindrical rod subjected to a tensile strain within the elastic limit undergoes a volume change.…
  11. Lead is poured into the joints between two __________ pipes.
  12. Between 230 and 370°C, blue brittleness is caused in mild steel because of the
  13. The most suitable material of construction for a sewer to carry sewage under high pressure is
  14. Ultimate strength in tension as compared to that in shear for steel is
  15. Working of linear variable differential transducer (LVDT) is based on the principle of variable
  16. __________ furnace is generally used in the non-ferrous foundries.
  17. Auto collimator is used to check
  18. In chemical dehumidification process
  19. __________ circuit is most commonly used to measure strain with the help of a strain gauge.
  20. Suitability of steel for its use in cable is judged by its strength in
  21. Compressed dry air is used as the cutting fluid, while machining
  22. __________ remains constant during the adiabatic cooling of moist air.
  23. Lead is added to 60:40 brass primarily to improve
  24. The dew point temperature lines on psychrometric charts are straight inclined sloping downwards to the…
  25. __________ of test specimens is not involved in any hardness testing method.
  26. Earing is a defect found in steels after the following metal working operation.
  27. Brittleness induced due to the presence of sulphur in steel can be reduced by adding
  28. Addition of __________ to steel does not help in improving its machinability.
  29. __________ is the trade name assigned to a nonferrous cast alloy composed of cobalt, chromium & tungsten.
  30. Bad odour in sanitary latrines is reduced by periodically sprinkling