V/A
V/A2
V2/A
V2/A2
D. V2/A2
High viscosity
Low surface tension
High density
High surface tension
Sequence of operation to be performed
Progress of work performed
Authorisation of work to be performed
Balancing of load on machines
Carbon and silicon should be low
Silicon should be low but carbon should be high
Both silicon & carbon should be high
Silicon should be high but carbon should be low
Geothermal energy is a non-conventional source of energy
Mass is converted into energy in both nuclear fission & fusion reaction
Inhalation of mercury vapour is not harmful for human beings
Inhalation of arsenic causes cancer
Pewter
White
Babbitt
Gun
Copper
Aluminium
Nickel
Zinc
Sulphur stick, which on detection gives white smoke
Using chemical reagents
Its smell
Soap solution
Reduced chance of gas porosity
Greater dimensional stability of the casting
Uniform flow of molten metal into the mould cavity
Less sand expansion type of casting defect
Passive
Active
Capacitive
None of these
Carbon monoxide
Carbon dioxide
Nitrogen
Ozone
5
1.25
2.5
3.75
1 : 1
1 : 2
2 : 1
1 : 4
Increase
Decrease
Remain same
May increase or decrease; depending on the type of metal
Grouting
Eyebolt
Anchor bolts
Refractory castables
Relative humidity increases
Dew point remains constant
Dry bulb & wet bulb temperature increases
Both 'b' & 'c'
Parabolic
Hyperbolic
Straight line
None of these
Greater than
Less than
Equal to
Unpredictable; depends on the bubble size
Wetness
Mass flow rate
Both 'a' & 'b'
Neither 'a' nor 'b'
Nitrate
Sulphate
Carbonate
Chloride
X-rays
γ-rays
α-rays
β-rays
Cavitation
Frictional losses
Kinetic energy loss
Static head
CaF2
Ca3(PO4)2
CaCO3
CaCl2
Phosphate coating is used as an excellent base for paints & enamels
Phosphate coating is less corrosion resistant than chromate coating
The base metal to be electroplated is normally made the cathode of the electrolytic cell and coating metal is made the anode
Calorising is the process of coating steel with chromium
Magnetic susceptibility
Magnetic moment
Permeability of free space
Flux density
Impact strength
Endurance limit
Machinability
Corrosion resistance
Sintering
Casting
Cold heading
Spinning
Ductile fracture of a stressed material, which exhibits a large plastic deformation is commonly caused by the formation and coalescence of voids in the necked region
Brittle fracture is caused by the propagation of pre-existing cracks in the material and involves minimum plastic deformation
Fatigue fracture of a material is always brittle in nature and takes place due to the existence of line imperfections
Brittle materials are generally tested in tension
Graphite
Lead sulphide
Lead
Both (B) & (C)
Extrusion
Bending
Rolling
Forging