A.Silica
B.Carbon black
C.Fireclay
D.High alumina refractory
Explanation: The correct answer is Carbon black.
Submitted by: Academy of Pakistan
Chemical Engineering MCQs: 8,342 practice questions with answer choices and available explanations. Page 72 of 557.
Chemical Engineering MCQs
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A.Ortho-phosphoric acid
B.Superphosphate
C.None of these
D.White phosphorous
Explanation: The correct answer is Ortho-phosphoric acid.
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A.Chalcopyrite
B.Monazite sand
C.Pitchblende
D.Cassiterite
Explanation: The correct answer is Pitchblende.
Submitted by: Academy of Pakistan
A.Accelerating the rate of scaling
B.Attacking the grain boundaries; particularly severe on low carbon and nickel bearing steels at
C.Causing metal embrittlement
D.All A., B. and C.
Explanation: The correct answer is All A., B. and C..
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A.Both ‘a’ & ‘b’
B.Neither ‘a’ nor ‘b’
C.Mean velocity
D.Flow rate
Explanation: The correct answer is Mean velocity.
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A.Neither A. nor B.
B.Aerobic oxidation
C.Using the activities of bacteria and other micro organisms
D.Both A. & B.
Explanation: The correct answer is Both A. & B..
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A.< 0.1
B.> 0.6
C.0.5
Explanation: The correct answer is > 0.6.
Submitted by: Academy of Pakistan
A.Cure pimples & dandruff
B.Fasten lather formation
C.Increase its cleansing action
D.Improve the soap texture
Explanation: The correct answer is Cure pimples & dandruff.
Submitted by: Academy of Pakistan
A.Poor grindability
B.Easier grindability
C.High power consumption in grinding
D.None of these
Explanation: The correct answer is Easier grindability.
Submitted by: Academy of Pakistan
A.All A., B. and C.
B.Rapid industrialisation
C.Increased transportation activity
D.Deforestation
Explanation: The correct answer is All A., B. and C..
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A.All A., B. and C.
B.Boron
C.Concrete
D.18/8 stainless steel
Explanation: The correct answer is All A., B. and C..
Submitted by: Academy of Pakistan
A.Increase in average molecular speed
B.Decrease in mean free path
C.Increased collision rate among molecules
D.Increase in molecular attraction
Explanation: The correct answer is Increase in molecular attraction.
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A.40
B.2
C.0.5
D.75
Explanation: The correct answer is 2.
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A.Phosphatic
B.Complex
C.Nitrogenous
D.Mixed
Explanation: The correct answer is Mixed.
Submitted by: Academy of Pakistan
A.Raoult’s law
B.Trouton’s rule
C.Boyle’s law
D.Amagat’s law
Explanation: The correct answer is Raoult’s law.
Submitted by: Academy of Pakistan