Metallurgical Engineering · all questions

Miscellaneous in Metallurgy
practice.

Practice every MCQ with options. Use Show answers when you want the correct option and solution.

252

Questions

9/13

Page

Pick an option on a question to see the right answer and solution.

Q161

When a half plane is inserted between two perfect planes then the defect arises in two plane perpendiculars to each other is called

Select an option to see the answer and solution.

Q162

The heat treatment process in which heating of steel is done to a temperature above the A₃ temperature and it between 1000 - 1200°C and hold is for long time 10-20hr and followed by cooling is called

Select an option to see the answer and solution.

Q163

A large set of data for a given measurement has been found to be normally distributed around a mean 'μ' with standard deviation 'σ'. Which of the following limits would have about 95% of the data points around the mean and rest outside?

Select an option to see the answer and solution.

Q164

Two identical engineering components are made from alloys X and Y. The K_IC of alloy X is greater than that of alloy Y. If these components are subjected to the same stress during operation under mode-I loading, which one of the following statements is true?

Select an option to see the answer and solution.

Q165

Cork is a good insulator because

Select an option to see the answer and solution.

Q166

Kevlar is commercial name for

Select an option to see the answer and solution.

Q167

For a steady state two dimensional in-compressible flow of liquid iron, the x component of the velocity is given by μ = 5xy² - xy where x and y are rectangular co-ordinates.
Using the continuity equation, the y component of the velocity would be

Select an option to see the answer and solution.

Q168

The Kelvin is converted into Celsius

Select an option to see the answer and solution.

Q169

The two surfaces of a 5 mm thick plate of carbon steel are maintained at a carbon concentration of 10⁴ mol. m^-3 on one side and zero concentration on the other side. Taking the diffusion coefficient of carbon in austenite to be 10^-11 m^-2.s^-1, the steady state flux (mol.m^-3.s^-1) through the thickness of the steel is

Select an option to see the answer and solution.

Q170

A cylindrical rod subjected to a tensile strain within the elastic limit undergoes a volume change. If the volume strain is equal to half the applied tensile strain then the poisson's ratio of the rod is

Select an option to see the answer and solution.

Q171

Welding preferred for joining thin foils is

Select an option to see the answer and solution.

Q172

In drawing operation, the metal flows due to

Select an option to see the answer and solution.

Q173

Boundary layer thickens at solid-fluid interface

Select an option to see the answer and solution.

Q174

The figure below shows water flowing through a pipe. The pressure difference between points P and Q measured using a water-over-mercury manometer is
Miscellaneous in Metallurgy mcq question image

Miscellaneous in Metallurgy mcq question image

Select an option to see the answer and solution.

Q175

If density and diffusion coefficient are assumed constant, then governing equation for mass transfer of A dissolved in solid B is

Select an option to see the answer and solution.

Q176

What are the applications of nitriding?

Select an option to see the answer and solution.

Q177

By hot rolling process which of the following mechanical properties can be improved

Select an option to see the answer and solution.

Q178

Which of the following is not a method of carburizing?

Select an option to see the answer and solution.

Q179

One face of a furnace wall is at 1030°C and the othere is exposed to the room temperature (30°C). If the thermal conductivity of the furnace wall is 3W. m^-1 k^-1 and the wall thickness is 0.3 m the maximum heat loss (in W/m²) is

Select an option to see the answer and solution.

Q180

A square of 9 mm² area is subjected to simple shear displacement √3 mm along x-direction, as shown below: The strain imparted will be
Miscellaneous in Metallurgy mcq question image

Miscellaneous in Metallurgy mcq question image

Select an option to see the answer and solution.

Prev 7 8 9 10 11 Next