Lakshya Education MCQs

Question: Which of the following constituents of steels is softest and least strong?
Options:
A. Austenite
B. Pearlite
C. Ferrite
D. Cementite
Answer: Option C
Explanation :

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More Questions on This Topic :

Question 1. Crystal structure of a material is, generally, examined by
  1.     Naked eye
  2.     Optical microscope
  3.     Metallurgical microscope
  4.     X-ray techniques
Answer: Option D
Explanation :
Question 2. Which of the following property is desirable in parts subjected to shock and impact loads?
  1.     Strength
  2.     Stiffness
  3.     Brittleness
  4.     Toughness
Answer: Option D
Explanation :
Question 3. Pig iron is the name given to
  1.     Raw material for blast furnace
  2.     Product of blast furnace made by reduction of iron ore
  3.     Iron containing huge quantities of carbon
  4.     Iron in molten form in the ladles
Answer: Option B
Explanation :
Question 4. The bond formed by transferring electrons from one atom to another is called
  1.     Ionic bond
  2.     Covalent bond
  3.     Metallic bond
  4.     None of these
Answer: Option A
Explanation :
Question 5. Crystal structure of a material is, generally, examined by
  1.     Naked eye
  2.     Optical microscope
  3.     Metallurgical microscope
  4.     X-ray techniques
Answer: Option D
Explanation :
Question 6. If a refractory contains high content of silicon, it means refractory is
  1.     Acidic
  2.     Basic
  3.     Neutral
  4.     Brittle
Answer: Option C
Explanation :

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