A.Same as that of A
B.Four times as that of A
C.Twice as that of A
D.One fourth as that of A
Explanation: The correct answer is One fourth as that of A.
Submitted by: Academy of Pakistan
Chemical Engineering MCQs: 8,342 practice questions with answer choices and available explanations. Page 137 of 557.
Chemical Engineering MCQs
Showing page 137 of 557 · 8,342 total solved questions available.
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A.Greater degree of separation with a fixed number of trays
B.Increased reflux ratio
C.Increased reboiler load
D.None of these
Explanation: The correct answer is Increased reflux ratio.
Submitted by: Academy of Pakistan
A.Cross-current
B.Counter-current
C.Direct contact
D.Co-current
Explanation: The correct answer is Direct contact.
Submitted by: Academy of Pakistan
A.Increased drying & hardening time of paints
B.All A., B. and C.
C.Reduction in strength of leather & cloth
D.Acceleration of corrosion rates of metals
Explanation: The correct answer is All A., B. and C..
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A.PTFE and porcelain
B.None of these
C.Stainless steel and high silicon cast iron
D.Cast iron and aluminium
Explanation: The correct answer is PTFE and porcelain.
Submitted by: Academy of Pakistan
A.Finned
B.Double pipe
C.Plate type
D.Regenerative
Explanation: The correct answer is Double pipe.
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A.Gilliland
B.Toor and Marcello
C.Fick
D.Stefan
Explanation: The correct answer is Toor and Marcello.
Submitted by: Academy of Pakistan
A.1
B.1⁄2
C.2
D.0
Explanation: The correct answer is 1⁄2.
Submitted by: Academy of Pakistan
A.Smelting
B.Froth floatation
C.Electromagnetic separation
D.Roasting
Explanation: The correct answer is Froth floatation.
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A.88
B.32
C.72
D.52
Explanation: The correct answer is 32.
Submitted by: Academy of Pakistan
A.All A., B. and C.
B.Vapour velocity in the volume between the plates
C.Plate spacing
D.Depth of liquid above the bubble cap slots
Explanation: The correct answer is All A., B. and C..
Submitted by: Academy of Pakistan
A.500
B.>1350
C.>2000
D.1000
Explanation: The correct answer is >1350.
Submitted by: Academy of Pakistan
A.(E + ED)/2
B.(E + ED) where ED is activation due to diffusion
C.The intrinsic activation energy E
D.ED/2
Explanation: The correct answer is ED/2.
Submitted by: Academy of Pakistan
In condenser, the cooling water is passed in the tube side in a pass arrangement, because________?
0A.It makes condenser compact
B.More thinner tubes can be used
C.It reduces heat transfer area
D.Pressure drop is reduced
Explanation: The correct answer is It reduces heat transfer area.
Submitted by: Academy of Pakistan
A.Vapor pressure
B.Freezing point
C.Viscosity
D.All A., B. & C.
Explanation: The correct answer is All A., B. & C..
Submitted by: Academy of Pakistan