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Process Equipment and Plant Design

Process Equipment and Plant Design
Height of the flights in the rotary drier is in the range of

0.08 to 0.12 d
0.5 to 0.6 d
0.2 to 0.5 d
0.02 to 0.05 d

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Process Equipment and Plant Design
For a cylinderical vessel of moderate height, the weld joint efficiency for joints parallel to the cylinderical axis is given as 1.0, while for joints along the girth (circumference) it is given as 0.8. In calculating the shell wall thickness using code formula for an internally pressurised cylinderical vessel, what value of weld joint efficiency should be used?

(0.8)0.5
1
0.9
0.8

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Process Equipment and Plant Design
Holes of a sieve tray are arranged in triangular pitch of __________ times the hole diameter.

10 to 15
2.5 to 5
1.5 to 2
5 to 10

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Process Equipment and Plant Design
A binary liquid azeotropic mixture has boiling point lower than either of the components, when it shows __________ deviation from Raoult's Law.

No
None of these
Positive
Negative

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Process Equipment and Plant Design
__________ of water makes it a widely used coolant in heat exchangers.

Low corrosiveness
Low dirt factor
Low viscosity
High specific heat

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Process Equipment and Plant Design
Floating head heat exchangers are used for the

Heat transfer between corrosive fluids
Counter-current heat transfer systems
Cases where temperature difference between the shell and the tubes is more (>50°C)
Co-current heat transfer systems

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