Answer:
B. restricting the dislocation motion
Explanation:
Solid solution strengthening is a type of alloying that is carried out by the addition of the atoms of the element used for the alloying to the crystallized lattice structure of the base metal, which the metal that would be strengthened. The purpose of this act is to increase the strength of metals. It actually works by impeding or restricting the motion in the crystal lattice structure of metals thus making them more difficult to deform.
The solute atoms used for strengthening could be interstitial or substitutional. The interstitial solute atoms work by moving in between the space in the atoms of the base metal while the substitutional solute atoms make a replacement with the solvent atoms in the base metal.
Answer:
Fermi energy is the highest energy occupied by an electron at absolute zero degree Kelvin (0K).
Explanation:
i) Fermi energy function, E - Ef = h²/2mo{3π²N/V} (where, N = number of particle; h = Planck constant; V = Volume of the system; mo = mass of each electron)
ii) Let 4% probability state = Kβ = 0.04
∴ To calculate Fermi temperature = Ef/Kβ = 0.3eV/0.04 =7.5°C
But in degree Kelvin = (273 + 7.5)K = 280.5K
Answer:
Out of the options given
option (a) preventing fires
is not a function of hydraulic fluid.
Explanation:
Hydraulic fluid is the medium for energy tranfer in all hydraulic sytems. Simple functioning of hydraulic fluid can be easily gained by using a fluid that does not trap gasses easily.
To transmit energy is the basic and the core function of any hydraulic fluid. Apart from this function, there are four other basic functions:
1) to transfer heat
2) to remove contaminant
3) to provide sealing
4) for lubrication