A.25 cms
B.40% of the I.D. of the shell
C.I.D. of the shell
D.5 cms
Explanation: The correct answer is 5 cms.
Submitted by: Academy of Pakistan
Chemical Engineering MCQs: 8,342 practice questions with answer choices and available explanations. Page 44 of 557.
Chemical Engineering MCQs
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A.6.35 kWh/ton
B.25.4 kWh/ton
C.9.0 kWh/ton
D.18 kWh/ton
Explanation: The correct answer is 18 kWh/ton.
Submitted by: Academy of Pakistan
A.(CA/2)n
B.(CA/2)1/n
C.(1⁄2)n CA
D.(CA)1/2n
Explanation: The correct answer is (1⁄2)n CA.
Submitted by: Academy of Pakistan
A.Low weight per unit volume
B.Large surface per unit volume
C.Large weight of liquid retained
D.Large free cross-section
Explanation: The correct answer is Large weight of liquid retained.
Submitted by: Academy of Pakistan
A.Natural uranium
B.Monazite sand
C.Enriched uranium
D.Plutonium
Explanation: The correct answer is Enriched uranium.
Submitted by: Academy of Pakistan
A.Enough plasticity
B.Low thermal conductivity
C.High toughness
D.Low co-efficient of friction
Explanation: The correct answer is Low thermal conductivity.
Submitted by: Academy of Pakistan
A.Cascade
B.Split flow
C.Cross flow
D.Radial flow
Explanation: The correct answer is Cross flow.
Submitted by: Academy of Pakistan
A.H2, & CO
B.CO, & CO2
C.H2, & CH4
D.CH4, & CO
Explanation: The correct answer is H2, & CH4.
Submitted by: Academy of Pakistan
A.150
B.200
C.400
D.300
Explanation: The correct answer is 200.
Submitted by: Academy of Pakistan
A.Protect rubber goods from attack by oxygen & ozone present in the atmosphere
B.Increase its viscosity
C.Reduce its viscosity to permit easier processing
D.Reduce the time of vulcanisation and quantity of vulcanising agent
Explanation: The correct answer is Reduce its viscosity to permit easier processing.
Submitted by: Academy of Pakistan
A.Rotary
B.Freeze
C.Tray
D.None of these
Explanation: The correct answer is Tray.
Submitted by: Academy of Pakistan
A.Is normally much more for a continuous furnace as compared to a batch furnace
B.Is the ratio of maximum to minimum permissible heat input rates
C.Should be as low as possible i.e., 1 : 2
D.Should be 1:1 for a batch type furnace
Explanation: The correct answer is Is the ratio of maximum to minimum permissible heat input rates.
Submitted by: Academy of Pakistan
Presence of nitrogen and phosphorous in waste water discharged into lakes and ponds causes________?
0A.Foaming
B.Odour nuisances
C.Turbidity
D.Undesirable plant growth
Explanation: The correct answer is Undesirable plant growth.
Submitted by: Academy of Pakistan
A.Yield of ammonia present in coke oven gas
B.Difference in gross & net calorific value of the coke oven gas
C.Free carbon content in tar
D.Yield percentage of coke
Explanation: The correct answer is Difference in gross & net calorific value of the coke oven gas.
Submitted by: Academy of Pakistan
A.Means the amount of heat thrown away (KCal/hr.) by the cooling tower
B.Both A. & B.
C.Neither A. nor B.
D.Is equal to the number of kg, of water circulated times the cooling range
Explanation: The correct answer is Both A. & B..
Submitted by: Academy of Pakistan