Hamad Chemical Engineering Basics 20/01/2021 A. Tin B. Lead C. Molybdenum D. Chromium Related Mcqs: Brass parts with high residual tensile stress at the surface are susceptible to season cracking (i.e. spontaneous cracking occuring on exposure to atmospheric corrosion), if its zinc percentage is more than ?A. 5 B. 10 C. 20 D. 35... Material of construction of foundry crucible is _________________?A. Lead B. Stainless steel C. Graphite D. Cast iron... A cylindrical rod subjected to a tensile strain within the elastic limit undergoes a volume change. If the volume strain is equal to half the tensile strain, then the Poisson’s ratio of the rod is___________________?A. 0 B. 0.33 C. 0.44 D. 0.25... Theoretical volume of oxygen required for complete combustion of 1Nm3 of acetylene, in oxy-acetylene welding is ______________ Nm3 ?A. 0.5 B. 1 C. 1/3 D. 2.5... In case of simple harmonic motion, displacement is proportional to the_________________?A. Velocity B. Acceleration C. Both A. & B. D. Neither A. nor B....
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