A.Decrease in crushing strength
B.Vitrification
C.Development of stable mineral form
D.Removal of water of hydration
Explanation: The correct answer is Decrease in crushing strength.
Submitted by: Academy of Pakistan
Chemical Engineering MCQs: 8,342 practice questions with answer choices and available explanations. Page 317 of 557.
Chemical Engineering MCQs
Showing page 317 of 557 · 8,342 total solved questions available.
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A.Pitch
B.Line
C.Tar
D.Molasses
Explanation: The correct answer is Line.
Submitted by: Academy of Pakistan
A.Detection of defects in metal
B.None of the above
C.Measurement of material thickness
D.Determination of elastic constant
Explanation: The correct answer is Detection of defects in metal.
Submitted by: Academy of Pakistan
A.None of these
B.Vaporisation
C.Fusion
D.Transition
Explanation: The correct answer is Transition.
Submitted by: Academy of Pakistan
A.Are easier to clean
B.Can be fitted into a smaller shell diameter hence the cost of the heat exchanger would be less
C.Are less prone to fouling
D.None of these
Explanation: The correct answer is Can be fitted into a smaller shell diameter hence the cost of the heat exchanger would be less.
Submitted by: Academy of Pakistan
A.20-25
B.12-14
C.0.3-0.4
D.3-4
Explanation: The correct answer is 3-4.
Submitted by: Academy of Pakistan
A.Supplying intense fields or beams of neutron for scientific experiments
B.The production of radioisotopes
C.Marine ship propulsion
D.None of these
Explanation: The correct answer is None of these.
Submitted by: Academy of Pakistan
A.Used to release any gases that might be vapour locking the pump
B.Generally a needle valve
C.Helpful in easy removal of samples
D.All A., B. and C.
Explanation: The correct answer is All A., B. and C..
Submitted by: Academy of Pakistan
A.Subjected to galvanising
B.Mainly CaO
C.A super cooled liquid
D.All A, B. and C.
Explanation: The correct answer is A super cooled liquid.
Submitted by: Academy of Pakistan
Replenishment of dissolved oxygen in water stream polluted with industrial waste occurs by________?
0A.Neither A. nor B.
B.Photosynthetic action of algae
C.Natural aeration of water stream
D.Both A. & B.
Explanation: The correct answer is Both A. & B..
Submitted by: Academy of Pakistan
A.Belt
B.Screw
C.Drag
D.Flight
Explanation: The correct answer is Flight.
Submitted by: Academy of Pakistan
A.Nickel and chromium
B.Lead and vanadium
C.Phosphorous and tungsten
D.Molybdenum and tungsten
Explanation: The correct answer is Nickel and chromium.
Submitted by: Academy of Pakistan
A.200°C and 10 atm
B.190°C and 200 atm
C.120°C and 300 atm
D.400°C and 550 atm
Explanation: The correct answer is 190°C and 200 atm.
Submitted by: Academy of Pakistan
A.Time for half change is half the time taken for completion of the reaction
B.Reaction rate is trebled when the initial concentration is trebled
C.Time for half change is independent of the initial concentration
D.Time for completion of the reaction is independent of the initial concentration
Explanation: The correct answer is Time for half change is half the time taken for completion of the reaction.
Submitted by: Academy of Pakistan
A.Polyurethane
B.Neoprene
C.SBR
D.PVC
Explanation: The correct answer is PVC.
Submitted by: Academy of Pakistan