A.P and R
B.P and S
C.P and Q
D.R and S
Explanation: The correct answer is P and S.
Submitted by: Academy of Pakistan
Chemical Engineering MCQs: 8,342 practice questions with answer choices and available explanations. Page 188 of 557.
Chemical Engineering MCQs
Showing page 188 of 557 · 8,342 total solved questions available.
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A.Propane
B.Freon-12
C.Ethyl chloride or methyl chloride
D.NH3 or CO2
Explanation: The correct answer is Ethyl chloride or methyl chloride.
Submitted by: Academy of Pakistan
A.Fuller’s earth
B.Vermiculite
C.Diatomaceous earth
D.Semi-plastic clay
Explanation: The correct answer is Diatomaceous earth.
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A.14.1
B.5
C.28.2
D.56.22
Explanation: The correct answer is 28.2.
Submitted by: Academy of Pakistan
A.μ2
B.μ
C.1/μ
Explanation: The correct answer is 1/μ.
Submitted by: Academy of Pakistan
A.All A., B. and C.
B.High RUL (1600°C) and refractoriness (> 2000°C)
C.High spalling resistance
D.Low co-efficient of expansion
Explanation: The correct answer is All A., B. and C..
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A.None of these
B.1
Explanation: The correct answer is 1.
Submitted by: Academy of Pakistan
A.None of these
B.P/m = K. ln D̅ sa/D̅ sb
C.P/m = K. (1/ D̅ sb – 1/D̅ sa)
D.P/m = K/ √Dp
Explanation: The correct answer is P/m = K. (1/ D̅ sb – 1/D̅ sa).
Submitted by: Academy of Pakistan
A.Polished surface
B.Very thick walls
C.High transmissivity of radiation
D.Low emissivity
Explanation: The correct answer is High transmissivity of radiation.
Submitted by: Academy of Pakistan
A.Is constant over the entire cross-section
B.Is zero at the plates and increases linearly to the mid-plane
C.None of these
D.Varies parabolically across the section
Explanation: The correct answer is Varies parabolically across the section.
Submitted by: Academy of Pakistan
A.The rate constant for a first order reaction does not change on changing the concentration units
B.A chemical reaction accompanied by absorption of heat is called an exothermic reaction
C.Chemical equilibrium state is dynamic in nature
D.A chemical reaction accompanied by evolution of heat is called an endothermic reaction
Explanation: The correct answer is The rate constant for a first order reaction does not change on changing the concentration units.
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A.95
B.67
C.38
D.19
Explanation: The correct answer is 38.
Submitted by: Academy of Pakistan
A.Constant rate
B.Varying pressure
C.Constant pressure
D.Varying rate
Explanation: The correct answer is Constant rate.
Submitted by: Academy of Pakistan
A.Smog & ozone
B.Hydrogen fluoride & nitrogen oxides
C.Carbon monoxide
D.Sulphur dioxide & spray of weed killers
Explanation: The correct answer is Carbon monoxide.
Submitted by: Academy of Pakistan
A.Newtonian
B.Pseudo-plastic
C.Bingham plastic
D.Dilatent
Explanation: The correct answer is Dilatent.
Submitted by: Academy of Pakistan