A.Pumice stone
B.Graphite
C.Carborundum
D.Diamond
Explanation: The correct answer is Diamond.
Submitted by: Academy of Pakistan
Chemical Engineering MCQs: 8,342 practice questions with answer choices and available explanations. Page 357 of 557.
Chemical Engineering MCQs
Showing page 357 of 557 · 8,342 total solved questions available.
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A.Only when the fluid is at rest having zero velocity
B.Only when the fluid is frictionless
C.Regardless of the motion of one fluid layer relative to an adjacent layer
D.When there is no motion of one fluid layer relative to an adjacent layer
Explanation: The correct answer is When there is no motion of one fluid layer relative to an adjacent layer.
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A.All A, B. and C.
B.After filtration, combats the corrosiveness of water due to the presence of O2 & CO2
C.Is to adjust the pH value
D.Before filtration, reduces the bacterial load on filters
Explanation: The correct answer is All A, B. and C..
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A.Smaller height chimney can be used
B.All A., B. & C.
C.Furnace control is easier
D.Combustion of fuel is complete
Explanation: The correct answer is All A., B. & C..
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A.Fick
B.Levenspiel
C.Higbie
D.Ergun
Explanation: The correct answer is Higbie.
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A.f1/2
B.2f1
C.4f2
D.f1/4
Explanation: The correct answer is f1/4.
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A.Controlling the dust nuisance while charging the coal
B.Reducing the cracking of hydrocarbons in the gas and increasing the percentage of CO &
C.Prevention of clinker formation in the oven
D.All A., B. and C.
Explanation: The correct answer is All A., B. and C..
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A.Soles of shoes
B.Gaskets
C.Coated fabrics
D.Front wheel tyres of aeroplanes (i.e., heavy duty tyres)
Explanation: The correct answer is Front wheel tyres of aeroplanes (i.e., heavy duty tyres).
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A.Lead chromates
B.Zinc sulphides
C.Ferrous sulphate
D.Titanium dioxide
Explanation: The correct answer is Lead chromates.
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A.Constant temperature gradient exists
B.Material is anisotropic
C.Boundary surfaces are isothermal
D.There is no internal heat generation
Explanation: The correct answer is Material is anisotropic.
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A.Reversible endothermic
B.Reversible exothermic
C.Irreversible endothermic
D.Irreversible exothermic
Explanation: The correct answer is Reversible endothermic.
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A.Higher specific heat
B.Lower neutron capture cross-section
C.Non-reactivity to uranium
D.Lower density
Explanation: The correct answer is Higher specific heat.
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A.Difference
B.Sum
C.Ratio
D.Product
Explanation: The correct answer is Product.
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A.Rheopectic
B.Thixotropic
C.Neither A. nor B.
D.Both A. & B.
Explanation: The correct answer is Both A. & B..
Submitted by: Academy of Pakistan
A.Y = Cp/Cv
B.1.5
C.1
D.1.4
Explanation: The correct answer is 1.
Submitted by: Academy of Pakistan