Painted steel
Galvanised iron
Case hardened steel
Lead lined reactor
B. Galvanised iron
Asbestos cement
Steel
Cement concrete
Stoneware
100
900
9000
10000
Dislocation climb
Cross-slip
Twinning
Recrystallisation
Its higher boiling point (290°C) increases its heat carrying capacity
Comparatively less weight of coolant is required
Smaller radiator can be used
All a, b & c
5
10
20
40
Easily available
Not soluble in blood at high pressure
Lighter than nitrogen
Completely miscible with oxygen
Fracture
Dislocation
Slip
Twinning
Without melting the base metal
With a non-ferrous filler
Both (A) & (B)
Neither (A) nor (B)
Machinability
Toughness
Internal stress level
Softness
Blades of gas turbine
Piston of an I. C. engine
Flywheel of steam engine
Cycle chain
PCl5
Quick lime
CaCl2
Concentrated H2SO4
Glass
Diamond
Brine
Kerosene
Manganese
Phosphorous
Magnesium
Chromium
Turbulent
Viscous
Gravity
Pressure
Impact
Completely reversed
Dynamic
Static & dynamic
Cutting torch
Drilling
Punching
None of these
Cotton, silk and paper
Asbestos, glass, porcelain and mica
Rubber and polymeric resins
All refractory materials
Equal to
Greater than
Less than
Either (A), (B) or (C); depends on the size of atom
Aluminium
Brass
Cast iron
Steel
Powder
Gaseous mixture
Solution
Emulsion
The better insulation material should be put just next to pipe (i.e., inside)
The better insulating material should be put outside
Either of the insulating material could be put on either side
Steam temperature is considered before deciding as to which insulating material is to be put inside (i.e., just next to the pipe)
Number of electrons
Oxidation number
Number of ions
All (A), (B) & (C)
Copper
Aluminium
Wrought iron
Lead
Temperature is low
Atmospheric pressure is low
Atmospheric pressure is high
None of these
Percentage elongation
Brinell hardness
Tensile strength
All 'a', 'b' & 'c'
Plastic deformation of material does not occur
Initiation of crack from below the surface does not occur
Initiation of crack occurs on the surface of the machine part
Presence of both rough & smooth zone with conchoidal markings in smooth zone of the surface
Soft
Hard
Tough
Ductile & malleable
Natural
Neoprene
Butadiene
Nitrile
-55°
-40°
-33°
-58°
Isothermal expansion
Isochoric heat addition
Polytropic expansion
Isobaric heat addition