31. Copper is dissolved from its ore by H2SO4 in a percolation tank made of
32. Steel will respond to hardening by heat treatment processes, only when the minimum carbon content in it is __________ percent.
33. Alpha iron is stable __________ °C.
34. __________ iron is produced, when molten pig iron is allowed to cool gradually.
35. Which of the following is not a nickel based alloy?
36. Presence of even 0.005% of __________ in copper makes it highly brittle, rendering it useless for wire-drawing.
37. Maximum consumption of lead is in the manufacture of
38. Coke oven walls are lined with __________ bricks.
39. Babbit metal (used for making bearings) comprises of
40. The chlorinator used in the manufacture of DDT is made of
Read More Section(Materials and Construction)
Each Section contains maximum 100 MCQs question on Materials and Construction. To get more questions visit other sections.