CHEMICAL ENGINEERING BASICS QUIZ

Routing in production, planning & control is concerned with the

Progress of work performed

Sequence of operation to be performed

Authorisation of work to be performed

Balancing of load on machines

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Which of the following heat treatment processes is usually applied to castings ?

Normalising

Annealing

Tempering

Carburising

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Materials having __________ lattice structure are usually the most ductile.

Body centred cubic (bcc)

Hexagonal close packed (hcp)

None of these

Face centred cubic (fcc)

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Notched bar test is used for testing the __________ of a material.

Machinability

Endurance limit

Corrosion resistance

Impact strength

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Area under the stress-strain curve upto the __________ is referred to as the modulus of resilience.

Proportional limit

Elastic limit

Yield strength

Maximum point

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In age-hardenable alloys, maximum ductility is obtained

Immediately after solution treatment and subsequent quenching

In as cast state

After optimum ageing

After overageing

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Specific __________ is a dimensionless quantity.

None of these

Weight

Humidity

Heat

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In the Bayer's process, bauxite is digested under pressure using

NaOH

HCl

H₂SO₄

NH₃

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Which of the following are made out of the carbon steel having carbon content of 0.9 to 1% ?

Forgings like can shaft, structural steel plate, threading dies and drawing dies

Small punches, broaches reamers and springs

Mandrels, twist drills, small lathe tools and razors

Cutlery, screws, rivets and files

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Nusselt number is related to Grashoff number (Gr) in turbulent & laminar flow respectively, in respect of free convection over a vertical flat plate as

Gr, Gr0.25

Gr0.25, Gr0.33

Gr0.25, Gr

Gr0.33, Gr0.25

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