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Engineering :: Metallurgy

41.  In tool steel the percentage of silicon is usually restricted to
A. 0.2 percent B. 0.5 percent
C. 1 percent D. 2 percent
E. 5 percent    
42.  Free cutting steels usually have sulphur content of
A. 0.002 percent B. 0.02 percent
C. 0.21 percent D. 2 percent
E. 10 percent    
43.  In tool steel the sulphur content is usually not allowed to exceed
A. 0.001 percent B. 0.035 percent
C. 0.35 percent D. 3.5 percent
E. 5 percent    
44.  Percentage of carbon in mild steel is
A. 0.010 to 0.025 B. 0.10 to 0.25
C. 0.8 to 0.85 D. 1.0 to 1.25
E. 3.0 to 4.50    
45.  Which of the following is usually made of dead mild steel?
A. Flanges B. Shafts
C. Fish plates D. Gears
E. Spades    
46.  Which of the follwing is usually made of mild steel?
A. Drop forgings B. Fish plates
C. Shear blades D. Channels
E. Die blocks    
47.  Which of the following is usually made of high carbon steel?
A. Hammers B. Angle iron
C. Solid drawn tubes D. Channels
48.  Railway rails are made of
A. Dead muld steel B. Mild steel
C. Low carbon steel D. Medium carbon steel
E. High carbon steel    
49.  Cold worked components are generally subjected to
A. Annealing B. Hardening
C. Shot peenling D. Normalising
E. Sherodising    
50.  The stainless steels owe their resistance to corrosion to the presence of
A. Chromium B. Carbon
C. Manganese D. Sulphur
E. Nickel    

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