List of top Engineering Materials Science Questions

A certain ceramic has a theoretical density and sintered density of \( 6.76 \, \text{g/cm}^3 \) and \( 6.60 \, \text{g/cm}^3 \), respectively. The green compact has 18 volume percent porosity. For a sintered cube of side 2 cm, the required side of the cubic green compact in cm is \(\underline{\hspace{2cm}}\) (round off to 2 decimal places).
During heating, Ti undergoes allotropic transformation from hcp to bcc at 882 °C. The percent volume change accompanying this transformation is \(\underline{\hspace{2cm}}\) (round off to 1 decimal place).
The drift mobility of electron in an n-type Si crystal doped with \( 10^{16} \, \text{cm}^{-3} \) phosphorous atoms is \(\underline{\hspace{1cm}}\) (round off to nearest integer).
X-ray diffraction peak broadening enables the estimation of
Atmospheric air with Dry Bulb Temperature (DBT) of 24°C and Relative Humidity of 35%, entering in a circular duct (assume no pressure drop in the duct) is heated by an electrical resistance arrangement inside the duct. The DBT of air measured at the outlet of the duct is equal to 30°C. Considering the flow to be steady, which of the following statement(s) is (are) correct as regards to the outlet air, with respect to the inlet air?
Which of the following deposition conditions favour the formation of larger grains in thin film?
Amino acids react to form peptides and proteins. This process is known as
Condition to be satisfied for \( \alpha \) and \( \beta \) phases to be in equilibrium in a two-component (A and B) system at constant temperature and pressure is
The most favoured slip system in face centered cubic metal is
The dielectric constant of a material at ultraviolet frequencies is mainly due to
In scanning electron microscopy, the resolution of backscattered electron (BSE) image is poorer compared to that of secondary electron (SE) image, because