A.fertilizer
B.Inorganic fungicide
C.Explosive
D.Insecticide
Explanation: The correct answer is Inorganic fungicide.
Submitted by: Academy of Pakistan
Chemical Engineering MCQs: 8,342 practice questions with answer choices and available explanations. Page 37 of 557.
Chemical Engineering MCQs
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A.Longitudinal fins are used in extended surface heat exchangers, when the direction of fluid flow is parallel to the axis of the tube
B.In a shell and tube heat exchanger, the shell pressure drop is maximum for orifice baffles
C.S.I. unit of fouling factor is Watt/m2.°K
D.Superheated steam is preferably not used for process heating because of its low heat transfer film co-efficient
Explanation: The correct answer is S.I. unit of fouling factor is Watt/m2.°K.
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A.T2
B.√T
C.T3
Explanation: The correct answer is T2.
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A.Trebled
B.Halved
C.Doubled
D.Unpredictable
Explanation: The correct answer is Unpredictable.
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A.Remains same
B.Decreases
C.Increases
D.None of these
Explanation: The correct answer is Decreases.
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A.Dependent on its cross-sectional area
B.Dependent on fluid viscosity
C.The velocity of sound
D.Dependent on fluid density
Explanation: The correct answer is The velocity of sound.
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A.Reduction of pressure to vapour pressure
B.Adverse pressure gradient
C.Boundary layer thickness reducing to zero
D.Reduction of pressure gradient to zero
Explanation: The correct answer is Reduction of pressure gradient to zero.
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A.0
B.-ve
Explanation: The correct answer is -ve.
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A.The main stream velocity must approach the velocity of sound in that fluid medium
B.The body should be stream lined
C.Circulation around the body is essentially required
D.The body should be bluff body
Explanation: The correct answer is Circulation around the body is essentially required.
Submitted by: Academy of Pakistan
A.The capacity of an evaporator is reduced by the boiling point elevation
B.Heat sensitive materials should be concentrated in high pressure evaporators
C.Corrosive liquid is normally passed through the tubes in a shell and tube heat exchanger
D.Steam jet ejector is used for vapor compression in a thermal recompression evaporator
Explanation: The correct answer is Heat sensitive materials should be concentrated in high pressure evaporators.
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A.LμV/D2
B.Dρv2/L
C.μV/L
D.Lρv2/D
Explanation: The correct answer is Lρv2/D.
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A.Schmidt
B.Peclet
C.Weber
D.Brinkman
Explanation: The correct answer is Peclet.
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A.All A., B. and C.
B.Ignites easily and burns with long smoky flame
C.Produces very little of tar and gas on carbonisation
D.Would require smaller combustion chamber
Explanation: The correct answer is All A., B. and C..
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A.20
B.10
Explanation: The correct answer is 20.
Submitted by: Academy of Pakistan
A.Hydrometer
B.Specific gravity bottle
C.Pycnometer
D.Anemometer
Explanation: The correct answer is Anemometer.
Submitted by: Academy of Pakistan