A.Decreases
B.Increases linearly
C.Remain constant
D.Increases
Explanation: The correct answer is Decreases.
Submitted by: Academy of Pakistan
Chemical Engineering MCQs: 8,342 practice questions with answer choices and available explanations. Page 340 of 557.
Chemical Engineering MCQs
Showing page 340 of 557 · 8,342 total solved questions available.
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A.0.5 RT
B.2 RT
C.-RT ln 0.5
D.-2 RT ln 0.5
Explanation: The correct answer is -RT ln 0.5.
Submitted by: Academy of Pakistan
Two solutions A1 and A2 have pH value of 2 and 6 respectively. It implies that the solution________?
0A.A1 is very slightly acidic
B.Both A. & C.
C.A1 is highly acidic
D.A2 is more alkaline than solution A2
Explanation: The correct answer is Both A. & C..
Submitted by: Academy of Pakistan
A.Not a function of the roughness of pipe wall
B.Neither A. nor B.
C.Inversely proportional to Reynolds number
D.Both A. & B.
Explanation: The correct answer is Both A. & B..
Submitted by: Academy of Pakistan
A.Is a measure of its caking tendency
B.Gives an idea of the fusion temperature of ash
C.Is a measure of its size stability, when stored & exposed to weather
D.Is related to its calorific value
Explanation: The correct answer is Is a measure of its size stability, when stored & exposed to weather.
Submitted by: Academy of Pakistan
A.0.25 p
B.0.5 p
C.p
D.2 p
Explanation: The correct answer is 2 p.
Submitted by: Academy of Pakistan
A.All A, B. & C.
B.Type and size of packing
C.Concentration of each fluid
D.Flow rates of each fluid
Explanation: The correct answer is All A, B. & C..
Submitted by: Academy of Pakistan
A.Increasing its cross-sectional area of flow
B.Passing it through a pressure reducing valve
C.None of these
D.Forcing it downwards through a vertical tube
Explanation: The correct answer is Passing it through a pressure reducing valve.
Submitted by: Academy of Pakistan
A.Nusselt
B.Both B. & C.
C.Reynolds
D.Grashoff
Explanation: The correct answer is Both B. & C..
Submitted by: Academy of Pakistan
A.200 °C
B.200 °K
C.200 °F
D.200 °R
Explanation: The correct answer is 200 °F.
Submitted by: Academy of Pakistan
A.Because it is less costly
B.When heat transfer area required is very low, i.e. (100-200 ft2).
C.When heat transfer area required is very high
D.Because it occupies less floor area
Explanation: The correct answer is When heat transfer area required is very low, i.e. (100-200 ft2)..
Submitted by: Academy of Pakistan
A.2HW/(H + W)
B.HW/2 (H + W)2
C.√(HW/π)
D.HW/4 (H + W)2
Explanation: The correct answer is HW/2 (H + W)2.
Submitted by: Academy of Pakistan
A.Is economical in operation
B.Both B. & C.
C.Employs high velocity, high heat transfer rate and less heating surface requirement
D.Employs a centrifugal pump placed between external downtake from vapor drum and inlet to
Explanation: The correct answer is Both B. & C..
Submitted by: Academy of Pakistan
A.Nickel
B.Lead
C.Iron
D.Aluminium
Explanation: The correct answer is Iron.
Submitted by: Academy of Pakistan
A.Laminar
B.Transition region
C.Creeping
D.Turbulent
Explanation: The correct answer is Turbulent.
Submitted by: Academy of Pakistan