Steel
Glass wood
Copper
Fireclay bricks
B. Glass wood
1 kg/cm2
1 bar
1 atmosphere
1 kilo Pascal
1-5
20-30
100-150
200-250
Drain out water and sludge from the boiler during repair
Put off fire in the furnace when water level in the boiler falls to unsafe limit
Guard the boiler in case of abnormal rise in steam pressure
All (A), (B) & (C)
Mass
Volume
Surface area
All 'a', 'b' & 'c'
Veneering
Galvanising
Electroplating
Calorising
Boiling
Forced convection in air
Free convection in air
Conduction in air
Alloy steel
Grey cast iron
Mild steel
High carbon steel
PCl5
Quick lime
CaCl2
Concentrated H2SO4
Hard
Elastic
Ductile
Brittle
Cation speed
Atomic number of the cation
Equivalent mass of the electrolyte
None of these
Small punches, broaches reamers and springs
Cutlery, screws, rivets and files
Mandrels, twist drills, small lathe tools and razors
Forgings like can shaft, structural steel plate, threading dies and drawing dies
Achieve very high purity of aluminium (99.9%)
Keep the electrolyte in liquid condition by the generation of heat
Electrolytically dissociate alumina
Both (B) & (C)
Dryness
Moisture content
Coolness
Latent heat
Product yields and quality cannot be achieved in continuous process, because of long residence time
Sales demand of product is not steady
Same equipment cannot be used for several processes of the same nature
All (A), (B) & (C)
Aluminium
Brass
Cast iron
Steel
Makes it usable in almost all magnetic circuits where alternating current is used
Increases its electrical resistivity and decreases the hysteresis loss
Is present upto 5% & 4% respectively when used in transformers & motor armatures
All 'a', 'b' & 'c'
Blow off cock
Feed check valve
Feed water pump
Stop valve
High speed steel
High carbon steel
Forged steel
Mild steel
Low temperature of
High temperature of
High % of CO in
High % of CO2 in
Blow down valve
Blow off cock
Fusible plug
Safety valve
Clamping methods
Electrodes
Current
Filler material
0
1
1/2
1/3
Indeterminate
Zero
Infinity
Same as that at any other temperature
1/k
k
k2
1/k2
0.015
0.055
0.505
0.805
Ambient
Dry bulb
Dew point
Wet bulb
Tin
Lead
Zinc
Glass
Close the surface porosity
Break the continuity of columnar grains
Flatten the weldment
Introduce texture in the weld
Stretchability
Drawability
Bendability
None of these
Flatness
Angle
Rotor balancing
Roughness