71. Which of the following is the most suitable material of construction for evaporator & its tubes for concentrating NaOH solution to 70%?
72. Which one has the maximum tensile strength out of the following?
73. Dielectric strength of a material is
74. Corrosion involves exchange of electrons in __________ corrosion.
75. Materials having __________ lattice structure are usually most ductile.
76. __________ steel is widely used for the manufacture of motor car crankshafts.
77. Fatigue failure of a material may occur, when it is subjected to __________ stress.
78. Aqueous nitric acid is stored in
79. Sulphur melting pit in the sulphuric acid plant is made of
80. Maximum consumption of copper is in
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