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Chemical Engineering Basics

Chemical Engineering Basics
Cold chiesel & hammers are made of

High carbon steel
High speed steel
Forged steel
Mild steel

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Chemical Engineering Basics
Transformation range for ferrous material is the temperature interval during which __________ is formed during its heating.

Pearlite
Martensite
Cementite
Austenite

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Chemical Engineering Basics
__________ is the most suitable lubricant for drawing mild steel wires?

Lime water
Sodium stearate
Kerosene
Water

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Chemical Engineering Basics
The most commonly used combustion system manufactured in India for the thermal power plant boilers is the __________ combustion system.

Fluidised bed
Pulverised fuel
Travelling grate stoker firing
Circulating fluidised bed

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Chemical Engineering Basics
Load cells used for the measurement of weight has

All of these
Compact & rugged construction with an accuracy of 0.1 to 1%
No moving parts and incurs negligible deflection under load
Provision of thermal compensation and is hermetically sealed

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Chemical Engineering Basics
Austempering of steel requires.it to be heated to 875°C followed by sudden cooling to 250-525°C, thereby changing austenite to

Sorbite
Bainite
Troostite
Martensite

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