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Chemical Engineering Basics

Chemical Engineering Basics
What is the value of included angle of a triangular notch for maximum discharge ?

60°
90°
30°
120°

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Chemical Engineering Basics
Which of the following is an example of cathodic protection of metals against corrosion ?

Galvanised iron
Lead lined reactor
Painted steel
Case hardened steel

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Chemical Engineering Basics
Castability of aluminium is increased by the addition of __________ in it.

Lead
Bismuth
Manganese
Silicon

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Chemical Engineering Basics
Principal alloying elements of cast tool alloys which have very high wear resistance & high temperature strength are

Cobalt, chromium & nickel
Cobalt, zirconium & molybdenum
Cobalt, chromium & tungsten
Molybdenun, tungsten & chromium

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Chemical Engineering Basics
There are one octahedral void and __________ tetrahedral void in the closest packing of atoms.

Three
One
None of these
Two

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Chemical Engineering Basics
Ignition of fuel in a diesel engine is by

Hot compressed air
None of these
Fuel injection
Spark

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