A.10-12 cm
B.1 Angstrom
C.10-24 cm
D.10-24 cm2
Explanation: The correct answer is 10-24 cm2.
Submitted by: Academy of Pakistan
Chemical Engineering MCQs: 8,342 practice questions with answer choices and available explanations. Page 237 of 557.
Chemical Engineering MCQs
Showing page 237 of 557 · 8,342 total solved questions available.
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A.Presence or absence of inerts
B.Pressure of the system
C.Kinetics of the reaction
D.Temperature of the system
Explanation: The correct answer is Pressure of the system.
Submitted by: Academy of Pakistan
A.Very high pressure is required resulting in costly pressure vessel
B.Space velocity of gas is very low resulting in decreased conversion
C.Rate of reaction is very low
D.None of these
Explanation: The correct answer is Rate of reaction is very low.
Submitted by: Academy of Pakistan
A.Sulphuric acid (concentrated)
B.Ammonia (both aqueous & anhydrous)
C.Fruit juices, milk & its products and caustic soda solution
D.Nitric acid & hydrochloric acid (concentrated)
Explanation: The correct answer is Fruit juices, milk & its products and caustic soda solution.
Submitted by: Academy of Pakistan
A.Maximum conversion can be controlled
B.Residence time is constant
C.Velocity of reaction can be controlled
D.Both the reactants flow counter-currently
Explanation: The correct answer is Velocity of reaction can be controlled.
Submitted by: Academy of Pakistan
A.Blast furnace stove
B.None of these
C.High pressure boiler
D.Sintering furnace
Explanation: The correct answer is Blast furnace stove.
Submitted by: Academy of Pakistan
A.Decrease in activation energy
B.Increase in the average kinetic energy of the reacting molecules
C.None of these
D.Increase in the number of effective collisions
Explanation: The correct answer is Decrease in activation energy.
Submitted by: Academy of Pakistan
A.Becomes infinite
B.Decreases
C.Remain same
D.Increases
Explanation: The correct answer is Increases.
Submitted by: Academy of Pakistan
A.Adiabatically
B.Non-uniformly
C.Isobarically
D.Isothermally
Explanation: The correct answer is Isobarically.
Submitted by: Academy of Pakistan
A.Mass and energy transfer
B.No mass transfer but heat transfer
C.None of these
D.No heat and mass transfer
Explanation: The correct answer is No mass transfer but heat transfer.
Submitted by: Academy of Pakistan
A.Sticky
B.Granular
C.Dry
D.Free flowing
Explanation: The correct answer is Sticky.
Submitted by: Academy of Pakistan
A.Toothed roll crusher
B.Smooth roll crusher
C.Tube mill
D.Gyratory crusher
Explanation: The correct answer is Gyratory crusher.
Submitted by: Academy of Pakistan
A.Paraffins
B.Aromatics
C.Diolefins
D.Naphthenes
Explanation: The correct answer is Diolefins.
Submitted by: Academy of Pakistan
A.Newtonian
B.Dilatants
C.Bingham plastic
D.Pseudo plastic
Explanation: The correct answer is Pseudo plastic.
Submitted by: Academy of Pakistan
A.Carried out to get extreme hardness in its core
B.Followed by tempering or carburising
C.Done to get a soft ductile interior with a very hard surface
D.Preceded by its tempering
Explanation: The correct answer is Carried out to get extreme hardness in its core.
Submitted by: Academy of Pakistan