List of top Questions asked in Tamil Nadu Common Entrance Test

The correct order of co-ordination number in BCC, FCC and HCP unit cells is
How many number of atoms are present in the unit cell of HCP structure?
Specify the sequence correctly
Nanostructured materials have crystallites ranging in the size of ____________
The faces in a tetragon are
The fracture toughness values of Ceramic Matrix Composites lie between
If \( K \) and \( \sigma \) be the thermal and electrical conductivities of a metal at temperature \( T \), then
Cermet are examples of
Polyvinyl chloride is
If resistivity is \( 1.7 \times 10^{-6} \) \( \Omega \)cm, area of cross-section is \( 19.6 \times 10^{-8} \) m\(^2\), length is 31.4 m, the resistance is found to be
Choose the correct statement
If the first reflection from an FCC crystal has a Bragg angle \( \theta = 21.5^\circ \), the \( \theta \) corresponding to the second reflection is
The Fe-Fe bond length is 2.48Å, the radius of iron atom is
Choose the wrong statement
In a binary system of A and B, if a liquid of 30% A is co-existing with a solid of 75% A, for an overall composition of 40% A, the fraction of liquid is given by
In a cubic crystal, a plane makes intercepts \( 1,2,2 \) on the \( x, y, \) and \( z \) axes respectively. The Miller indices of that plane is
In flat plate test, concave glazed side refers to _________ in glaze which will lead to _________.
Martensitic transformations
Conductive polymers are mainly synthesized by
_________ is used to calculate theoretical weight deposited on the electrode during electrolysis.
Addition of ________ to alumina increases its toughness.
________is the property of titania.
The carbon content required in steels to produce scissors and knives is
A continuous and aligned glass fibre reinforced composite consists of 40 vol% of glass fibres having a modulus of elasticity 69 GPa and 60 vol% of a polyester resin that when hardened displays a modulus of elasticity 3.4 GPa. What is the modulus of elasticity in longitudinal direction?
Which of the following structures has the highest density of packing?