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Sample Questions for Mechanical Engineering Materials, Cheat Sheet of Vocational education

Vocational education

A set of sample questions covering various topics related to mechanical engineering materials. The questions cover a wide range of subjects, including hardness testing, crystal structures, optical microscopy, alloy steel composition, stainless steel types, steel specifications, heat treatment of steel, cast iron properties, porous bearings, aluminum alloys, and polymer materials. The questions are organized into six different topics, providing a comprehensive assessment of the student's understanding of the subject matter. By studying this document, students can prepare for exams, review lecture notes, and deepen their knowledge of the fundamental concepts in mechanical engineering materials.

Typology: Cheat Sheet

2022/2023

Uploaded on 02/09/2023

Tehzeeb_Sayyad
Tehzeeb_Sayyad 🇮🇳

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Sample Questions for 22343 - (Mechanical Engineering Materials)
Topic-1
1) The Brinell hardness number is calculated by dividing the
a) applied load with the surface area of the indentation.
b) surface area of the indentation with applied load.
c) applied load with depth of the indentation.
d) depth of the indentation with diameter of indentor
2) This equation is atomic radius of _________
a) BCC lattice
b) FCC lattice
c) HCP lattice
d) Simple Cube
3) In Optical microscope the prism reflector is so positioned that only about _________ of the area of the
objective aperture is obstructed.
a) 1/2
b) 1/3
c) 1/4
d) 2/3
Topic-2
4) Identify element from the following, which should be added in alloy steel to increase creep strength at
high temperature.
a) Titanium
b) Silicon
c) Molybdenum
d) Vanadium
5) Choose type of stainless steel from the following which is used to make heating elements for furnace.
a) Austenitic stainless steel
b) Martensitic stainless steel
c) Ferritic stainless steel
d) None of the above
6) Identify the meaning of following specification of steel
X10cr18ni9s3
a) High Alloy Steel, 0.10%C, 18%Cr, 9%Ni, Pickled Condition
b) High Alloy Steel, 1.0%C, 18%Cr, 0.9%Ni, Pickled Condition
c) High Alloy Steel, 0.10%C, 1.8%Cr, 9%Ni, Pickled Condition
d) High Alloy Steel, 1.0%C, 1.8%Cr, 0.9%Ni, Pickled Condition
pf3

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Sample Questions for 22343 - (Mechanical Engineering Materials)

Topic- 1

  1. The Brinell hardness number is calculated by dividing the a) applied load with the surface area of the indentation. b) surface area of the indentation with applied load. c) applied load with depth of the indentation. d) depth of the indentation with diameter of indentor

  2. This equation is atomic radius of _________

a) BCC lattice b) FCC lattice c) HCP lattice d) Simple Cube

  1. In Optical microscope the prism reflector is so positioned that only about _________ of the area of the objective aperture is obstructed. a) 1/ b) 1/ c) 1/ d) 2/

Topic- 2

  1. Identify element from the following, which should be added in alloy steel to increase creep strength at high temperature. a) Titanium b) Silicon c) Molybdenum d) Vanadium

  2. Choose type of stainless steel from the following which is used to make heating elements for furnace. a) Austenitic stainless steel b) Martensitic stainless steel c) Ferritic stainless steel d) None of the above

6) Identify the meaning of following specification of steel X10cr18ni9s a) High Alloy Steel, 0.10%C, 18%Cr, 9%Ni, Pickled Condition b) High Alloy Steel, 1.0%C, 18%Cr, 0.9%Ni, Pickled Condition c) High Alloy Steel, 0.10%C, 1.8%Cr, 9%Ni, Pickled Condition d) High Alloy Steel, 1.0%C, 1.8%Cr, 0.9%Ni, Pickled Condition

Topic -

  1. Annealing temperature range for hypoeutectoid steel is a) Upper critical temperature +50 ºc b) Upper critical temperature +250 ºc c) Lower critical temperature +50 ºc d) Below lower critical temperature

  2. Ductile cast iron ASTM A536 contains a) C=3.5-5.9% b) C=3.5-3.9% c) C=3.5-6.9% a) C=3.5-4.9%

  3. Cast iron pipes are mainly used. a) for conveying steam b) in water and sewage systems c) in pressure lubrication systems on prime movers d) all of the above

Topic- 4

  1. In porous bearing , oil which is forced from the loaded zone of the bearing is reabsorbed by ---------- a) Gravitational force b) Centrifugal force c) Capillary action d) Magnetic action

  2. ---------- is an alloy made up of 90% Aluminium, 4% Copper, 0.5-1% Magnesium, and less than 1% Manganese a) Y alloy b) Bronze c) Duralumin d) Hindalium

  3. If weights are same, the electrical conductivity of aluminum is ---------- conductor than copper. a) Higher b) Lower c) Equal d) Zero