Sail E0 Webinar

MCQs

Total Questions : 137 | Page 11 of 14 pages
Question 101. Lower bainite is formed at ___________ temperature range.
  1.    750-550°C
  2.    550-350°C
  3.    350-250°C
  4.    250-150°C
 Discuss Question
Answer: Option C. -> 350-250°C
Answer: (c).350-250°C
Question 102. Phase transformation during hardening transforms _________
  1.    BCC to FCC
  2.    FCC to BCT
  3.    BCT to HCP
  4.    FCC to HCP
 Discuss Question
Answer: Option B. -> FCC to BCT
Answer: (b).FCC to BCT
Question 103. For hardening of steel by quenching, the steel is cooled in __________
  1.    Furnace
  2.    Still air
  3.    Oil bath
  4.    Cooling tower
 Discuss Question
Answer: Option C. -> Oil bath
Answer: (c).Oil bath
Question 104. The cooling rate must be _________ the critical cooling rate for hardening of steel by quenching.
  1.    Higher than
  2.    Lower than
  3.    Equal to
  4.    Half of
 Discuss Question
Answer: Option A. -> Higher than
Answer: (a).Higher than
Question 105. Which of the following factors do not affect the critical cooling rate?
  1.    Chemical composition
  2.    Hardening temperature
  3.    Number or nature of grains
  4.    Purity of steel
 Discuss Question
Answer: Option C. -> Number or nature of grains
Answer: (c).Number or nature of grains
Question 106. Tempering of martensite steel is done _________
  1.    Below eutectic temperature
  2.    Below eutectoid transformation temperature
  3.    At room temperature
  4.    At 1000°C
 Discuss Question
Answer: Option B. -> Below eutectoid transformation temperature
Answer: (b).Below eutectoid transformation temperature
Question 107. Internal stresses in martensite steel are relieved by heating at __________
  1.    200°C
  2.    500°C
  3.    800°C
  4.    1000°C
 Discuss Question
Answer: Option A. -> 200°C
Answer: (a).200°C
Question 108. What kind of transformation occurs during tempering of martensite steel?
  1.    BCC to FCC
  2.    BCT to HCP
  3.    FCC to BCT
  4.    BCT to α+Fe₃C
 Discuss Question
Answer: Option D. -> BCT to α+Fe₃C
Answer: (d).BCT to α+Fe₃C
Question 109. How is the tensile strength of the material affected due to tempering?
  1.    Increases with an increase in temperature
  2.    Decreases with an increase in temperature
  3.    Increases constantly
  4.    Does not change
 Discuss Question
Answer: Option B. -> Decreases with an increase in temperature
Answer: (b).Decreases with an increase in temperature
Question 110. How is the ductility of the material affected due to tempering?
  1.    Increases with an increase in temperature
  2.    Decreases with an increase in temperature
  3.    Increases constantly
  4.    Does not change
 Discuss Question
Answer: Option A. -> Increases with an increase in temperature
Answer: (a).Increases with an increase in temperature

Latest Videos
Chapter 1 - GLOBAL STEEL SCENARIO & INDIAN STEEL INDUSTRY Part 1 : (13-04-2024) INDUSTRY AND COMPANY AWARENESS (ICA)
Direction Sense Test Part 1 Reasoning (Hindi)
Chapter 1 - RMHP / OHP / OB & BP Part 1 : (14-02-2024) GPOE
Cube & Cuboid Part 1 Reasoning (Hindi)
Data Interpretation (DI) Basic Concept Reasoning (Hindi)
Counting Figures Part 1 Counting Of Straight Lines Reasoning (Hindi)
Sail E0 free webinar Webinars
Real Numbers Part 7 Class 10 Maths
Real Numbers Part 1 Class 10 Maths
Polynomials Part 1 Class 10 Maths

Latest Test Papers

GPOE / GPA Combined 1 Free Mock Test SAIL JO E-0 2024
Chapter 3.1 : INTRODUCTION Chapter 3 : Sinter Plant SAIL E0 - GPOE/GPA 2024
Chapter 2.3 : COAL HANDLING PLANT - Set 1 Chapter 2 : Coke Ovens and Coal Chemicals SAIL E0 - GPOE/GPA 2024
Chapter 1.1 : INTRODUCTION Chapter 1 : Raw Material Handling Plant SAIL E0 - GPOE/GPA 2024
DSP Combined 1 Free Revision Test SAIL JO E-0