Steel
Cast iron
Aluminium
None of these
B. Cast iron
Ambient
Dry bulb
Dew point
Wet bulb
Degradation of energy
Decrease in system pressure
Increase in the availability of energy
Increase in the temperature
Spheroidising
Hardening
Annealing
Normalising
Lower melting temperature
Same melting temperature
Same composition
Both 'b' & 'c'
Rises in the tube
Rotates at higher speed
Rotates at lower speed
Drops down in the tube
Can be determined only experimentally
Can be determined from the stoichiometry of the reaction
Cannot be zero
Can be fractional
2-5
18-20
12-15
6-12
Atomisation
Grinding/milling
Hammering
Electrolytic deposition
Hexagonal close, packed (hcp)
Face centred cubic (fcc)
Body centred cubic (bcc)
Simple cubic
Fine grains
Coarse grains
Homogeneity
Dissolved elements (except cobalt)
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)
Conduction
Radiation
Natural convection
Forced convection
Water passes through tubes and flue gases around it
Tube carrying hot flue gases are immersed in a pool of water
Tubes are placed in vertical position
None of these
Outside
Inside
Mean
None of these
Blow moulding
Calendaring
Extrusion
Injection
Iron
Copper
Rubber
Nickel
Air
Water
Mercury
Alcohol
Steel
Glass wood
Copper
Fireclay bricks
0.3-0.4
12-14
3-4
20-25
Grain size
Fatigue limit
Surface hardness
Wear resistance
Surface tension
Density
Viscosity
Buoyancy
Engine having carburettor
Diesel engine
Compression ignition engine
Both (B) & (C)
Horizontal
Vertical
Inclined
Any
0
1
∞
None of these
Heat capacity
Specific heat capacity
Thermal conductivity
Water equivalent
Abrasion resistant
Corrosion resistant
Prone to season cracking
Machinable
Boiler
Condenser
Evaporator
All (A), (B) & (C)
High speed steel
Stainless steel
Tungsten carbide
Superalloys
Specific gravities
Densities
Gas characteristic constants
Molecular weights
Reduce the speed
Obtain variable speed
Increase the speed
Produce high torque