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Why can the properties of steel be changed through heat treatment? Oa) Because the steel expands as it heats up. Ob) Because when the steel is held at elevated temperatures grains shrink in size. Oc) Because of the phase change from ferrite to cementite. Od) Because of the phase changes from BCC to FCC to BCG. What does the following illustration show? N Oa) An electromagnet with a magnetic field. Ob) A bar-magnet with a magnetic field. Oc) A magnetic yoke. Od) Lines of induced magnet saturation.

Why can the properties of steel be changed through heat treatment? Oa) Because the steel expands as it heats up. Ob) Because when the steel is held at elevated temperatures grains shrink in size. Oc) Because of the phase change from ferrite to cementite. Od) Because of the phase changes from BCC to FCC to BCG. What does the following illustration show? N Oa) An electromagnet with a magnetic field. Ob) A bar-magnet with a magnetic field. Oc) A magnetic yoke. Od) Lines of induced magnet saturation.

ENGR.ECONOMIC ANALYSIS
ENGR.ECONOMIC ANALYSIS
14th Edition
ISBN:9780190931919
Author:NEWNAN
Publisher:NEWNAN
Chapter1: Making Economics Decisions
Section: Chapter Questions
Problem 1QTC
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Why can the properties of steel be changed through heat treatment? Oa) Because the steel expands as it heats up. Ob) Because when the steel is held at elevated temperatures grains shrink in size. Oc) Because of the phase change from ferrite to cementite. Od) Because of the phase changes from BCC to FCC to BCG.
Transcribed Image Text:Why can the properties of steel be changed through heat treatment? Oa) Because the steel expands as it heats up. Ob) Because when the steel is held at elevated temperatures grains shrink in size. Oc) Because of the phase change from ferrite to cementite. Od) Because of the phase changes from BCC to FCC to BCG.
What does the following illustration show? N Oa) An electromagnet with a magnetic field. Ob) A bar-magnet with a magnetic field. Oc) A magnetic yoke. Od) Lines of induced magnet saturation.
Transcribed Image Text:What does the following illustration show? N Oa) An electromagnet with a magnetic field. Ob) A bar-magnet with a magnetic field. Oc) A magnetic yoke. Od) Lines of induced magnet saturation.
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