A.Ceramic recuperators
B.Muffle furnace
C.Zinc smelting furnace
D.All A., B. and C.
Explanation: The correct answer is All A., B. and C..
Submitted by: Academy of Pakistan
Chemical Engineering MCQs: 8,342 practice questions with answer choices and available explanations. Page 54 of 557.
Chemical Engineering MCQs
Showing page 54 of 557 · 8,342 total solved questions available.
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A.Polyacrylonitrile
B.Polyamide
C.Unsaturated polyesters
D.Saturated polyesters
Explanation: The correct answer is Unsaturated polyesters.
Submitted by: Academy of Pakistan
A.None of these
B.Strength
C.Spalling resistance
D.Thermal conductivity
Explanation: The correct answer is Spalling resistance.
Submitted by: Academy of Pakistan
A.Gain a proton
B.Gain an electron
C.Lose a proton
D.None of these
Explanation: The correct answer is Gain a proton.
Submitted by: Academy of Pakistan
A.Monel
B.Silicon bronze
C.White metal
D.Phosphorous bronze
Explanation: The correct answer is Phosphorous bronze.
Submitted by: Academy of Pakistan
A.350-400
B.5-10
C.30-80
D.150-250
Explanation: The correct answer is 30-80.
Submitted by: Academy of Pakistan
A.Polymers made of more than one monomer is called copolymer or mixed polymer
B.Vulcanised rubber is more elastic than natural rubber
C.The intermolecular forces in thermoplastic polymers are intermediate to that of elastomers &
D.Polymers made of only one monomer is called homopolymer
Explanation: The correct answer is Polymers made of only one monomer is called homopolymer.
Submitted by: Academy of Pakistan
A.In differential (simple) distillation, the vapour is removed as soon as it is formed without appreciable condensation
B.Flash distillation, differential distillation & steam distillation are all continuous distillation processes
C.In flash (equilibrium) distillation, a definite fraction of liquid is vaporised in such a way that the evolved vapour & residual liquids are in equilibrium with each other
D.Distillation under vacuum is a substitute for steam distillation
Explanation: The correct answer is Flash distillation, differential distillation & steam distillation are all continuous distillation processes.
Submitted by: Academy of Pakistan
A.Both liquids flow at fixed rate
B.Both liquids can have any desired flow rate
C.Liquid’s flow rate depends upon the temperature and pressure
D.Only one of the liquids may be pumped at any desired rate
Explanation: The correct answer is Only one of the liquids may be pumped at any desired rate.
Submitted by: Academy of Pakistan
A.Re, Gr
B.Re, Pr
C.Mainly Gr
D.Re only
Explanation: The correct answer is Re, Pr.
Submitted by: Academy of Pakistan
A.d(E – TS) T, V < 0
B.ΔF = ΔH + T [∂(ΔF)/∂T]P
C.ΔF = ΔH – TΔT
D.dP/dT = ΔHvap/T.ΔVvap
Explanation: The correct answer is ΔF = ΔH + T [∂(ΔF)/∂T]P.
Submitted by: Academy of Pakistan
A.Aluminium
B.Carbon steel
C.Copper
D.Stainless steel
Explanation: The correct answer is Copper.
Submitted by: Academy of Pakistan
A.Low porosity
B.Neither A. nor B.
C.Both A. and B.
D.High thermal conductivity
Explanation: The correct answer is Neither A. nor B..
Submitted by: Academy of Pakistan
A.T2
B.T
C.1/T
Explanation: The correct answer is T.
Submitted by: Academy of Pakistan
A.(x + y)/xy
B.2xy/(x + y)
C.(x + y)/2xy
D.xy/(x + y)
Explanation: The correct answer is 2xy/(x + y).
Submitted by: Academy of Pakistan