In case of brasses, with decreasing zinc percentage and increasing copper percentage, its __________ increases.

A. Percentage elongation

B. Brinell hardness

C. Tensile strength

D. All 'a', 'b' & 'c'

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

You can do it
  1. Which of the following is not categorised as the ore agglomeration process?
  2. The most abundant metal present in the earth's crust is;
  3. The underground well of a biogas plant is called the
  4. Compressed dry air is used as the cutting fluid, while machining
  5. The bank of tubes located at the back of the domestic refrigerators are the __________ tubes.
  6. Plants produce carbohydrates from the CO2 present in the atmosphere by
  7. Which of the following metals is the most prone to work hardening?
  8. Which of the following is not an ore of copper?
  9. Name the safety device used to protect the boiler, when the water level falls below a minimum level.
  10. Brass parts with high residual tensile stress at the surface are susceptible to season cracking (i.e.…
  11. Projection welding & stud welding is categorised as the __________ welding.
  12. Which of the following materials has the least scrap value?
  13. Maximum hardenability of steel depends upon its
  14. In a counter flow heat exchanger, hot fluid enters at 170°C & leaves at 150°C, while the cold…
  15. The softness or hardness of a grinding wheel depends upon the type & amount of bonding material used.…
  16. Other parameters remaining same, the recrystallisation temperature of an alloy is lowered, when
  17. __________ is not used as a material of construction in thermocouples.
  18. The best lubricants for a machine working at high temperature & load is
  19. Which of the following parameters is not responsible for the heat loss from a hot steam carrying bare…
  20. Nitriding of a steel part does not increase its
  21. In the acid Bessemer process, the hot metal should have the following composition.
  22. In a good rimming steel
  23. Current employed in resistance welding ranges from __________ kVA/.
  24. In troposphere (the weather domain), the temperature 't' at height 'h' above the sea level in metres…
  25. __________ of austenite decreases the hardenability in steel.
  26. The product of a commercial direct reduction process is
  27. Drills are usually made of
  28. Hollow shafts can be made as strong as solid shafts by making the twisting moments of both the shafts…
  29. Unbreakable crockeries are made from __________ polymers.
  30. Regeneration of molecular sieve requires it to be heated to a temperature of about __________ °C.