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Materials Engineering: 


Materials Engineering deals in the study of material at atomic and molecular level. It is an amalgamation of engineering physics and chemistry, covering design, discovery and advancement of different materials . It includes understanding of building structure of materials at various subatomic levels including the influence in its properties with several external factors. 


Materials Engineering Sample Questions:


Question 1: The structure formed by the distribution and arrangement of crystal within material

a) Electronic structure        b) Microstructure

c) Macrostructure              d) Crystal structure


Answer: d) Crystal structure

Explanation: Crystal structures are basically the ordered arrangement of atoms and molecules within


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Question 2: Which of the following materials is made from two or more materials.

a) Metal and non-metal      b) Ceramic and organic

c) Composite and alloy       d) Ions and compound

Answer:  c) Composite and alloy

Explanation: Composite material is made up by combining two or more fibres with the help of binders, to obtain desired material properties.


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Question 3: How many bravais lattices are there in three dimensional space ?


(a)  10                          (b) 12


(c) 13                          (d) 14

Answer:  d) 14

Explanation: In the three dimensional space there are 14 distinct


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Question 4:  The type of defect when a pair of cation and anion are missing from the ionic crystal is


a) Schottky defect           b) Frenkel defect

c) Vacancy defect            d) Interstitial defect 

Answer: a) Schottky defect

Explanation: Schottky defects are point defects caused by a vacant position that


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Question 5: Which of the following are not hardness test.

a) Rockwell test              b) Brinell test

c) Izod test                     d) Mho test


Answer:  c) Izod test 

Explanation: All the tests are hardness test except izod


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Question 6: Which of the following micro constituents of steel is the combination of ferrite and cementite?

a) Pearlite                b) Austentite

c) Bainite                 d) Sorbite

Answer:  a) Pearlite

Explanation: Pearlite is a combination of about 87% of ferrite and 13%


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Question 7: In an Iron-carbide equilibrium diagram, Iron carbon alloys containing __ % carbon are called steels.


a) 1.2%            b) 2.5%

c) 2.1%            d) 2.3%


Answer: c) 2.1%

Explanation: In an Iron-carbide equilibrium diagram, Iron carbon alloys containing 2.1% carbon are called steels and those containing over 2.1% carbon are called cast irons.


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Question 8: Which of the following heat treatment processes involves heating steel to a temperature above critical point, holding, and then rapidly cooling in water or oil bath.? 

a) Annealing                  b) Tempering

c) Normalising               d) Quenching


Answer:  d) Quenching

Explanation: In quenching (hardening), a metal is heated to temperature greater than normal condition


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Question 9: Hardness in surface hardening followed by sequence 

a) Nitriding > Cyaniding > Carburizing         b) Nitriding < Cyaniding < Carburizing

c) Nitriding > Cyaniding = Carburizing        d) Nitriding = Cyaniding > Carburizing

Answer:  a) Nitriding > Cyaniding > Carburizing 

Explanation: Normally, Carburising is followed by hardening and low temperature tempering.


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Question 10: Which of the following alloying elements increases the strength and toughness of cast iron?


a) Vanadium          b) Nickel

c) Copper              d) Molybdenum


Answer: d) Molybdenum

Explanation: 0.25% - 1.25% of  Molybdenum


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