The two elements required to form substitutional solid solution should not have
Same crystalline structure
Same valency
Widely differing electronegativity
Same atomic sizes
- The laminar boundary layer thickness in zero pressure gradient flow over a flat plate along the x-direction…
- Resistance of an electrical conductor is proportional to its (where, l = length and A = cross-sectional…
- Pick out the wrong statement.
- Stresses encountered in the metal forming processes are less than the __________ of the material.
- Titanium is produced by __________ of Ti Cl4.
- Which of the following terminology is used for the temperature at which new grains are formed in a metal?
- __________ test is the appropriate test to determine whether a material is ductile or brittle.
- What is the pH of distilled water?
- In practice, the compression ratio of compression-ignition (CI) engine ranges from
- Which one can be directly solidified from gaseous state without entering into liquid state?
- The lightest non-inflammable gas is
- Silicon percentage in acid resistant cast iron is about
- Main constituent of bone ash is
- Tin based white metals are used, where bearings are subjected to
- Pipelines carrying various utilities in chemical industries are identified by their colour codes. The…
- The critical pressure at which the latent heat of vaporisation of steam becomes zero is __________ Kg/cm2.
- A psychrometer does not measure the __________ temperature of moist air.
- Regeneration of molecular sieve requires it to be heated to a temperature of about __________ °C.
- In inventory control theory, the economic order quantity (EOQ) is the
- Diffusion co-efficient of a metal in a solid solution depends upon its
- For a thermodynamic system undergoing a process, which of the following pairs best expresses the relationship…
- Which of the following are considered applications of ultrasonic testing?
- The refractory brick which has good thermal shock resistance at high temperature but cracks on cooling…
- For infinite parallel planes having emissivities ε1 & ε2, the interchange factor for radiation…
- For efficient performance of a blast furnace, the extent of reduction of Wustite (FeO) should be
- A spring material should have low
- The amount of different substances produced, when the same quantity of electricity is passed through…
- Metalloids
- Corona discharge is related to the operation of a/an
- In case of brasses, with decreasing zinc percentage and increasing copper percentage, its __________…