In which parts are not loaded
In which stress remains constant on increasing load
In which deformation tends to loosen the joint and produces a stress reduced
Stress reduces on increasing load
C. In which deformation tends to loosen the joint and produces a stress reduced
Are formed into shape under heat and pressure and results in a permanently hard product
Do not become hard with the application of heat and pressure and no chemical change occurs
Are flexible and can withstand considerable wear under suitable conditions
Are used as a friction lining for clutches and brakes
Grain growth, recrystallisation, stress relief
Stress relief, grain growth, recrystallisation
Stress relief, recrystallisation, grain growth
Grain growth, stress relief, recrystallisation
Copper
Chromium
Nickel
Silicon
50 : 50
40 : 60
60 : 40
10 : 90
Controls the grade of pig iron
Acts as an iron bearing mineral
Supplies heat to reduce ore and melt the iron
Forms a slag by combining with impurities
Nickel
Chromium
Nickel and chromium
Sulphur, lead and phosphorus
Sulphur
Vanadium
Tin
Zinc
Does not effect
Decreases
Increases
None of these
Mild steel
Copper
Nickel
Aluminium
Boron steel
High speed steel
Stainless steel
Malleable cast iron
Point defect
Line defect
Plane defect
Volumetric defect
Ferritic stainless steel
Austenitic stainless steel
Martenistic stainless steel
Nickel steel
770°C
910°C
1050°C
Below recrystallisation temperature
Below 0.5 %
Below 1 %
Above 1 %
Above 2.2 %
Amount of carbon it contains
The shape and distribution of the carbides in iron
Method of fabrication
Contents of alloying elements
Vanadium 4%, chromium 18% and tungsten 1%
Vanadium 1%, chromium 4% and tungsten 18%
Vanadium 18%, chromium 1% and tungsten 4%
None of the above
Hysteresis
Creep
Visco elasticity
Boeschinger effect
Stainless steel
Gun metal
German silver
Duralumin
Resilience
Creep
Fatigue strength
Toughness
Paramagnetic
Ferromagnetic
Ferroelectric
Dielectric
Percentage of carbon
Percentage of alloying elements
Heat treatment employed
Shape of carbides and their distribution in iron
63 to 67% nickel and 30% copper
88% copper, 10% tin and rest zinc
Alloy of tin, lead and cadmium
Iron scrap and zinc
Chromium
Silicon
Manganese
Magnesium
Ability to undergo large permanent deformations in compression
Ability to recover its original form
Ability to undergo large permanent deformations in tension
All of the above
0.2 %
0.8 %
1.3 %
2 %
Below 10°K
Above 100°K
Around 0°C
Around 100°C
Amorphous material
Mesomorphous material
Crystalline material
None of these
Acidic
Basic
Neutral
Brittle
Air is burning out silicon and manganese
Silicon and manganese has burnt and carbon has started oxidising
The converter must be titled to remove the contents of the converter
The brown smoke does not occur during the operation of a Bessemer converter
Brass
Bronze
Gun metal
Muntz metal