Increases
Decreases
Remain constant
Either (A) or (B), depends on the type of semi-conductor
A. Increases
Increases the reducing potential of the gas
Increases the flame temperature
No significant change occurs
Increases the hydrogen content in the metal
Bomb
Throttling
Junker's
Boy's
Increases
Decreases
Remain constant
Either (A) or (B), depends on the type of semi-conductor
Removed by acid pickling
Hammered into the surface
Removed with coarse emery cloth
Left as such to protect the surface
Elaiden test
Reichert-Meissl value test
Hunter value test
Iodine value test
0.03
0.3
0.8
1.5
Finer
Coarser
Medium
Any type of
200 BTU/minute
50 kcal/minute
50 kJ/sec
3.5 KW
Lower melting temperature
Same melting temperature
Same composition
Both 'b' & 'c'
Septic tank
Oxidation well
Digestor
Lagoon
Spheroidising
Annealing
Tempering
Normalising
Hot temper
Hot hardness
Fatigue
Creep
Fuel cells
Photo voltaic cell
Magneto hydrodynamic generator
None of these
Insulator for heat & electricity transmission
Ferritic
Behave like paramagnetic materials
Superconductor
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)
Nipple
Socket
Union
Bell and spigot
Suspended salt
Dissolved salt
Silica
Turbidity
Chromatography
Evaporation
Filtration
Fractional distillation
Passive
Active
Capacitive
None of these
Lead
Copper
Aluminium
Wrought iron
Boiling
Forced convection in air
Free convection in air
Conduction in air
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
Sulphur
Silicon
Lead
Phosphorous
Is at rest & has zero viscosity
Is frictionless
Fluid layer has no motion relative to an adjacent layer of fluid
is incompressible & frictionless
A soft magnetic material should have high permeability and small area of hysteresis loop
Poisson's ratio of high melting point metals is more than unity
Solders generally melt at less than 185°C
Steel produced by B.O.F process is ideally suited for manufacturing flat product
Mild steel
Copper
Soft iron
Stainless steel
Wet
Saturated
Superheated
None of these
Grouting
Eyebolt
Anchor bolts
Refractory castables
A ferromagnetic material becomes paramagnetic above the 'Curie temperature'
Permanent magnets are made of hard materials, whereas electromagnets require soft magnetic materials
Soft magnetic materials (e.g., pure iron) have higher permeability and low hysterisis loss and coercive forces
Tungsten steel and alnico are not hard magnetic materials
Cation speed
Atomic number of the cation
Equivalent mass of the electrolyte
None of these