Grain refinement
Increasing corrosion resistance
Reducing porosity
Improving fluidity
D. Improving fluidity
Steel
Lignite
Water
Lime stone
Sphlerite is zinc oxide
The first law of the thermodynamics is stated as δE = δQ - δW
Lead can be produced in a blast furnace
T. ferrooxidans is a fungus that can be used for leaching chalcopyrite
Above the highest
Above the lowest
Between the first & second
Between the second & third
Cementite
Austenite
Martensite
Pearlite
Turbulent
Viscous
Gravity
Pressure
The electrolyte consists of molten Na3AlF6 with approximately 1 to 8% Al2O3
Approximately 80% of the aluminium deposited on the cathode comes from cryolite
Sodium is deposited along with aluminium, but is immediately vaporised
Anode effect sets in when the cryolite concentration goes below 40%.
Atomisation
Grinding/milling
Hammering
Electrolytic deposition
H2
He
Ar
O2
Electronic
Structural
Process
Heavy
N2O4
N2O
N2O5
N2O3
Boiling
Forced convection in air
Free convection in air
Conduction in air
Octane number of fuel is decreased
Fuel supply for ignition is not sufficient
Vaporisation of the fuel is decreased
Pour point of fuel decreases
Temperature - entropy
Temperature - pressure
Enthalpy - entropy
Enthalpy-pressure
Close the surface porosity
Break the continuity of columnar grains
Flatten the weldment
Introduce texture in the weld
Lead
Glass
Mica
Silver
Less than the wet bulb temperature
More than the wet bulb temperature
More than the dry bulb temperature
Equal to wet bulb temperature
1.2 to 2.5
4.5 to 6.2
7.5 to 8.5
10.5 to 15.5
Upward thrust due to air
Viscous force exerted by air
Surface tension effects of water
Force of gravity
Flatness
Angle
Rotor balancing
Roughness
Alloy steel
Grey cast iron
Mild steel
High carbon steel
Oxide only
Sulphate only
Oxide and sulphate
Dependent on temperature and partial pressure of oxygen & sulphur dioxide
Brass
Aluminium
Copper
Lead
Soft ferrites
High purity iron
Grain oriented Fe-Si alloy
Al-Ni-Co alloy
Cermets
High speed steel
Alloy steel
Tungsten carbide
Flow output
Head developed
Overall efficiency
Weight
No
Acid
Basic
Neutral
TNT
CMC
RDX
Lead azide
Tensile
Compressive
Yield
Bearing
Conduction
Convection
Radiation
Both 'a' & 'b'
Borosilicate glass
Silica glass
Soda lime glass
None of these