A.Lead oxide
B.Zinc sulphide
C.Cellulosic photographic material
D.Zinc oxide
Explanation: The correct answer is Lead oxide.
Submitted by: Academy of Pakistan
Chemical Engineering MCQs: 8,342 practice questions with answer choices and available explanations. Page 224 of 557.
Chemical Engineering MCQs
Showing page 224 of 557 · 8,342 total solved questions available.
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A.Gravity filter
B.Pressure filter
C.Vacuum filter
D.Centrifugal filter
Explanation: The correct answer is Vacuum filter.
Submitted by: Academy of Pakistan
A.y = 1.44
B.1.66
C.0
D.1
Explanation: The correct answer is 0.
Submitted by: Academy of Pakistan
A.The nucleus of a hydrogen atom is identical with a proton
B.Mass of an electron is about 1/1800th of the lightest nucleus
C.A, β-ray particle is identical with an electron
D.Positron is heavier than a proton
Explanation: The correct answer is Positron is heavier than a proton.
Submitted by: Academy of Pakistan
A.Lime & Magnesia
B.None of these
C.Alumina
D.Alkali oxide
Explanation: The correct answer is Lime & Magnesia.
Submitted by: Academy of Pakistan
A.[(DP2/18). (ρs – ρ/μ)] ω2r
B.[(DP/18). (ρs – ρ/μ)] ω2r2
C.[(DP/18). (ρs – ρ/μ)] ω2r
Explanation: The correct answer is [(DP2/18). (ρs – ρ/μ)] ω2r.
Submitted by: Academy of Pakistan
A.Covalent
B.Ionic
C.None of these
D.Hydrogen
Explanation: The correct answer is Hydrogen.
Submitted by: Academy of Pakistan
A.Binding
B.Threshold
C.Thermal
D.Activation
Explanation: The correct answer is Activation.
Submitted by: Academy of Pakistan
The ratio of Murphree plate efficiency to point efficiency is always > 1 in a ________ flow model?
0A.Neither A. nor B.
B.Both A. & B.
C.Perfectly mixed
D.Plug
Explanation: The correct answer is Plug.
Submitted by: Academy of Pakistan
A.(atm)Δx, when Δx is positive
B.Dimensionless, when Δx = 0
C.(atm)Δx, when Δx is negative
D.(atm)Δx2, when Δx > 0
Explanation: The correct answer is (atm)Δx2, when Δx > 0.
Submitted by: Academy of Pakistan
A.As plasticiser for PVC & nitrocellulose
B.For fibre making
C.For surface coating of automobiles & air crafts
D.For film forming materials
Explanation: The correct answer is For fibre making.
Submitted by: Academy of Pakistan
A.None of these
B.Hirschfelder
C.Wilke and Chang
D.Gilliland
Explanation: The correct answer is Gilliland.
Submitted by: Academy of Pakistan
A.Teflon
B.Bakelite
C.Glass
D.Glass lined steel
Explanation: The correct answer is Glass lined steel.
Submitted by: Academy of Pakistan
A.Superduty fireclay
B.Carborundum
C.Silica
D.High alumina
Explanation: The correct answer is Carborundum.
Submitted by: Academy of Pakistan
The term “cooling range” in a cooling tower refers to the difference in the temperature of________?
0A.Hot water entering the tower and the cooled water leaving the tower
B.Cold water leaving the tower and the wet bulb temperature of the surrounding air
C.Hot water entering the tower and the wet bulb temperature of the surrounding air
D.None of these
Explanation: The correct answer is Hot water entering the tower and the cooled water leaving the tower.
Submitted by: Academy of Pakistan