- Chemical Engineering Basics - Section 1
- Chemical Engineering Basics - Section 2
- Chemical Engineering Basics - Section 3
- Chemical Engineering Basics - Section 4
- Chemical Engineering Basics - Section 5
- Chemical Engineering Basics - Section 6
- Chemical Engineering Basics - Section 7
- Chemical Engineering Basics - Section 8
- Chemical Engineering Basics - Section 9
- Chemical Engineering Basics - Section 10
- Chemical Engineering Basics - Section 11
- Chemical Engineering Basics - Section 12
- Chemical Engineering Basics - Section 13
- Chemical Engineering Basics - Section 14
- Chemical Engineering Basics - Section 15
- Chemical Engineering Basics - Section 16
- Chemical Engineering Basics - Section 17
- Chemical Engineering Basics - Section 18
- Chemical Engineering Basics - Section 19
- Chemical Engineering Basics - Section 20
- Chemical Engineering Basics - Section 21
- Chemical Engineering Basics - Section 22
- Chemical Engineering Basics - Section 23
- Chemical Engineering Basics - Section 24
- Chemical Engineering Basics - Section 25
- Chemical Engineering Basics - Section 26
- Chemical Engineering Basics - Section 27
- Chemical Engineering Basics - Section 28


Chemical Engineering Basics - Engineering
Q1: __________ are normally subjected to sub-zero treatment.A Highly stressed parts
B Gauges or precision parts
C Cold rolled sheets
D Non machinable materials
ANS:B - Gauges or precision parts Gauges or precision parts are commonly subjected to sub-zero treatment. Sub-zero treatment, also known as cryogenic treatment, involves exposing materials to very low temperatures, typically below -100°C (-148°F) for an extended period. This process is often used to improve the mechanical properties of materials, particularly those used in precision applications such as gauges or precision parts. Precision parts, such as gauges, cutting tools, molds, and other components used in precision engineering, require high dimensional stability, wear resistance, and durability to maintain accuracy and performance over time. Sub-zero treatment can provide several benefits for precision parts:
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