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Chemical Engineering Basics

Chemical Engineering Basics
Presence of small quantity of sulphur in low carbon steel improves its

Formability
Weldability
Hardenarality
Machinability

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Chemical Engineering Basics
If the head is doubled in & centrifugal pump, the power required will increase in the ratio of

21/3
23/2
25/2
23

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Chemical Engineering Basics
Rankine cycle comprises of two isothermal and two __________ processes.

None of these
Isentropic
Polytropic
Isobaric

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Chemical Engineering Basics
The size of the tetrahedral void in the closest packing of atoms is __________ that of the octahedral void.

Either A, B or C; depends on the size of atom
Equal to
Less than
Greater than

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Chemical Engineering Basics
Which of the following is not used as a fuel in rocket propellaht ?

Liquid hydrogen
Liquid hydrazine
Liquid oxygen
Kerosene oil

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Chemical Engineering Basics
Filler material used in welding having the lowest melting point out of the following is

Silver solder
Aluminium
Soft solder
Brazing spelter

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