List of practice Questions

The coefficient of friction increases by 5 times when a slab is hot rolled in a specific mill. The maximum possible reduction:
Addition of Pb in Brass improves:
The strength of grain boundary and grains are equal:
The Larson-Miller parameter is used to:
According to Griffith's theory, the critical condition for crack propagation in a brittle material is when the energy release rate \( G \) equals:
In which crystal structure is dislocation motion most difficult due to limited slip systems?
Strain hardening in metals leads to:
Which of the following is in the decreasing order of hardness in Rockwell C-scale?
For an ASTM grain size number of 8, approximately how many grains would be visible per square inch at a magnification of 100$\times$?
The structure of a polymer depends on:
The incubation period at nose temperature region of TTT diagram of eutectoid steel is shorter than below and above nose regions. This is due to:
Pearlitic content of normalized steel is slightly higher than slowly cooled steel, because:
Spheroidal grey cast iron (SG Iron) will be produced by:
The (\(\alpha + \beta\)) Ti alloys are solution treated in the:
Which of the following elements/compound has high bonding energy?
An example of long chain polymer which exhibit unique rubbery behaviour is:
The polymer used as sound proofing in refrigerators and buildings is:
Which of the following is a peritectic reaction?
Razor blades are made of:
To produce malleable cast iron, the silicon content must be:
In refining process, ............ of a system works against the refiner.
Forsterite is a mineral of:
The Rhombohedral crystal structure has (where a, b, c are lattice parameters and \(\alpha, \beta, \gamma\) are their angles):
The relationship between spread out film (S) and the radius of the powder camera (R) in Debye-Scherrer powder diffraction is (where \(\theta\) is the angle):
In X-ray diffraction analysis, the condition for BCC crystal where the reflections are allowed is (where h, k, l are Miller indices):