Sensible heat carried away by the flue gases
Heat carried away by the steam from the moisture content of the fuel
Heat lost by radiation
Heat carried away by steam from the combustion of hydrogen in the fuel
D. Heat carried away by steam from the combustion of hydrogen in the fuel
Pressure change to temperature change occuring during adiabatic compression of a gas
Pressure change to temperature change occuring during adiabatic throttling of a gas
Temperature change to pressure change occuring during adiabatic compression of a gas
Temperature change to pressure change occuring during adiabatic throttling of a gas
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%.
Veneering
Galvanising
Electroplating
Calorising
10
30
50
80
Minor
Major
Pitch
None of these
Liquid density
Vapour density
Temperature difference
Heat of evaporation
Stainless steel
Mild steel
High speed steel
High carbon steel
Slush
Die
Investment
True centrifugal
CCl2F2
CCl3F
CClF3
CCl4F
Cermets
High speed steel
Tungsten carbide
Stellite
Above the highest
Above the lowest
Between the first & second
Between the second & third
Tempering
Rapid heating
Rapid cooling
Slow cooling
A ferromagnetic material becomes paramagnetic above the 'Curie temperature'
Permanent magnets are made of hard materials, whereas electromagnets require soft magnetic materials
Soft magnetic materials (e.g., pure iron) have higher permeability and low hysterisis loss and coercive forces
Tungsten steel and alnico are not hard magnetic materials
Refine coarse grain structure obtained during hot working
Improve ductility
Improve yield strength
Improve mechanical properties
Composition
Temperature
Both (A) & (B)
Neither (A) nor (B)
Collar
Flanged
Bell and Spigot
Expansion
High heat capacity
Low heat capacity
High thermal conductivity
Both (B) and (C)
Water alkalinity & leakage
Hydrazine addition during feed water treatment
Release of non-condensable gas from water in the boiler
Scale formation
Slip
Fracture
Winning
Dislocation
Surface tension
Density
Viscosity
Buoyancy
0.015
0.055
0.505
0.805
Cast iron pipe for domestic water supply
Aluminium curtain rods
Stainless steel tubes used in furnitures
Any of these
Babbitt metal
Gun metal
Stainless steel
Duralumin
S < 0.05% and P < 0.05%
S < 0.05% and P < 1.5%
S < 0.05% and P > 1.5%
S > 1.5% and P < 0.05%
50
300
500
800
Watt/m
Joule/
Newton/
Joule/m
Volume
Pressure
Heat
None of these
Cold
Work
Age
Induction
Grain size
Fatigue limit
Surface hardness
Wear resistance
10-3
103
10-15
1015