A. Manganese
B. Phosphorous
C. Magnesium
D. Chromium
A. μ , α and θ all have units of m/s
B. μ , α and θ all have units of m2/s
C. α and θ have units of m2/s, while μ has unit of m/s
D. α and θ have units of m/s, while μ has unit of m2/s
A. Spraying water
B. Blanketting the area with nitrogen atmosphere
C. Fire fighting foam
D. None of these
A. Hard
B. Elastic
C. Ductile
D. Brittle
A. Increase
B. Decrease
C. Remain unaffected
D. May increase or decrease; depends on the thickness of each layer
A. Rigid
B. Tough
C. Ductile
D. Plastic
A. More
B. Equal
C. Less
D. Double
A. Wet bulb temperature=dry bulb temperature
B. Wet bulb temperature=dew point temperature
C. Saturation temperature=dew point temperature
D. All ‘A’, ‘B’ & ‘C’
A. Promotes graphite module formation
B. Improves its ductility
C. Does not promote graphite flakes formation
D. Increases the fluidity of molten metal
A. Wrought iron
B. Stainless steel
C. Mild steel
D. High speed steel