Thermit
Electrical resistance
Oxy-acetylene
Any of these
B. Electrical resistance
Extrusion
Rolling
Deep drawing
Wire drawing
Can be determined only experimentally
Can be determined from the stoichiometry of the reaction
Cannot be zero
Can be fractional
Copper
Steel
Zinc
Aluminium
Brass
Mild steel
Cast iron
Lead
Low toughness
No tendency to distort
High density
Very high toughness
Waiting
Idle
Inspection
Tool replacement
Viscous force is larger than the inertia force
Inertia force is larger than the viscous force
Inertia force is larger than the surface tension force
Inertia force is larger than the gravitational force
Condensation
Deaeration
Scavenging
Exhaust
Reduce the speed
Obtain variable speed
Increase the speed
Produce high torque
4
8
14
20
Inventory control
Production schedule
Sales forecasting
Quality control
0
1
∞
None of these
1 kg/cm2
1 bar
1 atmosphere
1 kilo Pascal
Mach
Reynolds
Froude
Weber
μ , α and θ all have units of m/s
μ , α and θ all have units of m2/s
α and θ have units of m2/s, while μ has unit of m/s
α and θ have units of m/s, while μ has unit of m2/s
Is an electrical insulating material
Of low resistivity is preferred
Should have high thermal conductivity
Need not defy the corrosive action of chemicals
Limestone
Iron scrap
Iron ore
Pig iron
Promotes graphite module formation
Improves its ductility
Does not promote graphite flakes formation
Increases the fluidity of molten metal
Wet steam
Saturated steam
Superheated steam
Saturated water
Refine coarse grain structure obtained during hot working
Improve ductility
Improve yield strength
Improve mechanical properties
Lower cost
Abundant availability
Resistance to vegetable acids as the tin plate are commercially used in 'canning' industry
None of these
Mild steel
Stainless steel
Carbides
High carbon steel
Suspension
Emulsion
Gel
Solution
Sorbite
Bainite
Martensite
Troostite
10 atm-1
105 atm-1
10 (dimensionless)
105 (dimensionless)
Adiabatic
Quasi-static
Isothermal
Isentropic
Pressure falls below the vapour pressure
Pressure becomes very high
Temperature becomes low
All 'a', 'b' & 'c'
lbm/lbf. ft/sec2
lbf/lbm. ft/sec2
ft/sec2
lbm/lbf. sec2/ft
Specific gravities
Densities
Gas characteristic constants
Molecular weights
Lead can creep under its own weight at room temperature
The electrical conductivity of gold is considerably reduced by alloying additions due to the decrease in electron movement
Recrystallisation temperature decreases with decrease in strain in a cold worked metal
With increase in temperature, the electrical conductivity of intrinsic semi-conductor will increase