A. 0.5

B. 3

D. 1.5

A. Machining properties

B. Ductility

D. Resilience

A. 750

B. 1100

D. 500

B. Adiabatic compression of air

C. Adiabatic expansion of steam in turbine

D. Ideal compression of air

A. Iron pyrite

B. Sand

D. Magnesium silicate

A. Copper

B. Lead

D. Aluminium

A. Equal to

C. Greater than

D. Unpredictable; depends on the bubble size

A. Normalised

C. Hardened

D. Tempered

B. Volume

C. Enthalpy

D. Entropy

A. Neutral

B. Acid

C. Basic

A. Product of coal tar distillation

C. Very heat sensitive material

D. None of these

A. Gr0.33, Gr0.25

B. Gr0.25, Gr0.33

C. Gr, Gr0.25

A. Bronze

B. Stellite

D. Lead

B. Infinity

C. Indeterminate

D. Same as that at any other temperature

A. Its high melting temperature

B. Chances of cracking

D. Chromium carbide formation

A. y = k1t3 + k2

C. y = k1 ln (k2t + k3)

D. y = k1 t + k2

A. Error ratio

C. Differential gap

D. Derivative time

A. Steel

B. None of these

C. Aluminium

A. Grain refinement

C. Increasing corrosion resistance

D. Reducing porosity

A. N2O5

B. N2O3

D. N2O4

B. Fluid density & viscosity

C. Pipe roughness

D. Mass flow rate of fluid

A. Tempering

B. Work hardening

C. Toughening

A. Eyebolt

B. Grouting

C. Refractory castables

A. None of these

C. Shank diameter

D. Head diameter

A. Age

B. Cold

D. Induction

A. Nuclear fission

B. Nuclear fusion

D. None of these

A. None of these

C. Thinner

D. Dryer

A. Pig iron

B. Wrought iron

C. None of these

B. Eutectic temperature

C. Critical point

D. Inversion temperature

B. Manganese

C. Nickel

D. Chromium

A. X-rays

B. Infrared rays

C. Ultraviolet rays

A. Of higher wavelength than visible light

B. Positively charged

C. Negatively charged

A. Room temperature

C. 75C

D. 150C

A. 212

B. 273

C. 32

A. Unpredictable

B. Equal

D. More

A. Provide protective atmosphere to weld

C. Add alloying elements

D. Stabilise the arc

B. Creep

C. Tensile

D. Endurance

A. 90 & 10

B. 50 & 50

D. 30 & 70

A. A high temperature neutral gas

B. A source of steady and highest controllable pressure

C. Formed at very low temperature

A. ?3/2

B. ?2

D. 2

A. Thermal properties

B. Induced stresses

C. Density

B. Prior cold deformation is increased

C. Grain size is increased

D. Not affected by any of the above parameters

A. 120

B. 60

D. 30

A. About 373

B. <100

D. About 273

A. None of these

C. Full annealing

D. Bright annealing

A. Liquid density

B. Temperature difference

C. Heat of evaporation

A. HCl

B. H2SO4

C. NH3

A. Tinning

C. Galvanising

D. None of these

A. Fuel supply for ignition is not sufficient

B. Octane number of fuel is decreased

D. Pour point of fuel decreases

A. None of these

C. Galena

D. Chalcocite