A.Permutit
B.Reverse osmosis
C.Sand filter
D.Lime soda
Explanation: The correct answer is Reverse osmosis.
Submitted by: Academy of Pakistan
Chemical Engineering MCQs: 8,342 practice questions with answer choices and available explanations. Page 323 of 557.
Chemical Engineering MCQs
Showing page 323 of 557 · 8,342 total solved questions available.
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Mass transfer co-efficient (K) and diffusivity D. are related according to film theory as________?
0A.K ∝ D1.5
B.K ∝ D
C.K ∝ D2
Explanation: The correct answer is K ∝ D.
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A.Increases the reducing potential of the gas
B.Increases the hydrogen content in the metal
C.Increases the flame temperature
D.No significant change occurs
Explanation: The correct answer is Increases the reducing potential of the gas.
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A.Remain unaffected
B.Decrease or increase; depends on the type of liquid
C.Decrease
D.Increase
Explanation: The correct answer is Increase.
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A.Forged/cast steel
B.Alloy steel
C.Cast iron
D.Lead
Explanation: The correct answer is Lead.
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A.Thermal & electrical insulator
B.Conductor of electricity
C.Conductor of heat
D.Both B. & C.
Explanation: The correct answer is Both B. & C..
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A.Unity
B.None of these
C.Infinity
D.Zero
Explanation: The correct answer is Zero.
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A.Double pipe
B.U-tube
C.Fixed tube
D.Floating head
Explanation: The correct answer is Double pipe.
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A.Both A. and B.
B.Open
C.Neither A. nor B.
D.Closed
Explanation: The correct answer is Closed.
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A.Calcium cyanamide is used as weed killer in onion fields
B.A straight fertilizer contains only one nutrient
C.All the nitrogenous fertilisers are not soluble in water
D.The phosphorous nutrient makes the plant stem stronger and increases its branches
Explanation: The correct answer is All the nitrogenous fertilisers are not soluble in water.
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A.Holes
B.Conduction electrons
C.Ions
D.Free electrons
Explanation: The correct answer is Holes.
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A.Hemispherical
B.Flat plate
C.Conical
D.Ellipsoidal (2 : 1)
Explanation: The correct answer is Ellipsoidal (2 : 1).
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A.0.04 πgH/3
B.0.01 πgH/4
C.0.01 πgH/8
D.4πg/3
Explanation: The correct answer is 4πg/3.
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A.Carborundum
B.Magnesite
C.Fireclay
D.Silica
Explanation: The correct answer is Fireclay.
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A.Both A. & B.
B.Neither A. nor B.
C.Ethylene
D.Ethyl alcohol
Explanation: The correct answer is Both A. & B..
Submitted by: Academy of Pakistan