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Mechanical Engineering Exam  >  Mechanical Engineering Tests  >  Test: Heat Treatment of Steels - 2 - Mechanical Engineering MCQ

Test: Heat Treatment of Steels - 2 - Mechanical Engineering MCQ


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10 Questions MCQ Test - Test: Heat Treatment of Steels - 2

Test: Heat Treatment of Steels - 2 for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Test: Heat Treatment of Steels - 2 questions and answers have been prepared according to the Mechanical Engineering exam syllabus.The Test: Heat Treatment of Steels - 2 MCQs are made for Mechanical Engineering 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Heat Treatment of Steels - 2 below.
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Test: Heat Treatment of Steels - 2 - Question 1
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Arrange the following in terms of increasing severity of quench
P. Oil quenching
Q. Water quenching
R. Water quenching with agitation
S. Brine quenching

Test: Heat Treatment of Steels - 2 - Question 2
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Which one of the following does not improve fatigue life of a steel component?

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Test: Heat Treatment of Steels - 2 - Question 3
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As per the TTT diagram, bainite will form in eutectoid plain carbon steel when heated to 8500C followed by

Test: Heat Treatment of Steels - 2 - Question 4
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Match the heat treatment processes of steels in Group-1 with the microstructural features in Group-2:
Group-1
P. Quenching
Q. Maraging
R. Tempering
S. Austerepering
Group-2
1. Bainite
2. Martensite
3. Intermetallic precipitates
4. Epsilon carbide
Test: Heat Treatment of Steels - 2 - Question 5
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During carburising, carbon is introduced to form a layer of high carbon at the surface, The carbon is introduced in the form of
Detailed Solution for Test: Heat Treatment of Steels - 2 - Question 5

Carburizing is the most widely method of surface hardening. The surface layers of a low carbon steel (C ≤ 0.2%) is enriched with carbon up to 0.8 - 1 %. The source of carbon may be a solid , liquid or gas medium. In all cases, the carbon enters the steel at the surface-and diffuse into the steel as a function of time at an elevated temperature.

Test: Heat Treatment of Steels - 2 - Question 6
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Maximum surface hardness is attained by
Detailed Solution for Test: Heat Treatment of Steels - 2 - Question 6

Maximum surface hardness is produced by nitriding; next come cyaniding and carburising.

Test: Heat Treatment of Steels - 2 - Question 7
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Select the WRONG statement:
Test: Heat Treatment of Steels - 2 - Question 8
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Select the wrong statement:
Detailed Solution for Test: Heat Treatment of Steels - 2 - Question 8

In nitriding, only nitrogen is used.

Test: Heat Treatment of Steels - 2 - Question 9
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Killed steels
Test: Heat Treatment of Steels - 2 - Question 10
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The following structure is obtained by Austempering process of heat treatment
Detailed Solution for Test: Heat Treatment of Steels - 2 - Question 10

Bainite is produced by austempering process. In this process sample is heated and quenched to room temperature below the nose of T-T-T diagram and this temperature is maintained for a substantial period of time so that cooling curve enters into T-T-T diagram.

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