A.Rotary kilns
B.Reverberatory furnace
C.Boiler furnace
D.Reheating furnace
Explanation: The correct answer is Boiler furnace.
Submitted by: Academy of Pakistan
Chemical Engineering MCQs: 8,342 practice questions with answer choices and available explanations. Page 114 of 557.
Chemical Engineering MCQs
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A.0.65
B.65
C.0.065
D.6.5
Explanation: The correct answer is 0.65.
Submitted by: Academy of Pakistan
A.Activated carbon
B.Ferric sulphate
C.Calcium sulphate
D.Chlorine
Explanation: The correct answer is Ferric sulphate.
Submitted by: Academy of Pakistan
A.R [{(1 + i)n – 1}/ i (1 + i)n]
B.R(1 + i)n
C.R [{(1 + i)n – 1}/ i ]
Explanation: The correct answer is R [{(1 + i)n – 1}/ i (1 + i)n].
Submitted by: Academy of Pakistan
A.Cannot be used to test the stability of a control system containing transportation lag
B.Cannot determine as to how many roots of the characteristics equation have positive real roots
C.Criterion provides information about the actual location of roots
D.Criterion is not applicable to systems with polynomial characteristic equation
Explanation: The correct answer is Cannot be used to test the stability of a control system containing transportation lag.
Submitted by: Academy of Pakistan
A.Copper & zinc
B.Copper & nickel
C.Copper & tin
D.Zinc & tin
Explanation: The correct answer is Copper & tin.
Submitted by: Academy of Pakistan
A.None of these
B.Packed towers are generally preferred over plate towers, if the liquids have a foaming tendency
C.When highly corrosive fluids are to be handled, the plate towers prove to be cheaper and easier to construct than packed tower
D.The pressure drop through the packed towers is generally more than the pressure drop through plate towers designed for same duty
Explanation: The correct answer is Packed towers are generally preferred over plate towers, if the liquids have a foaming tendency.
Submitted by: Academy of Pakistan
A.Is affected by the variation in earnings after the recovery of the investment
B.And economic life of a project are the same
C.Is the length of time over which the earnings on a project equals the investment
D.All A, B. and C
Explanation: The correct answer is Is the length of time over which the earnings on a project equals the investment.
Submitted by: Academy of Pakistan
A.Triple superphosphate
B.Ammonia
C.Superphosphate
D.Urea
Explanation: The correct answer is Urea.
Submitted by: Academy of Pakistan
A.Radiation
B.Conduction
C.Convection
D.None of these
Explanation: The correct answer is Conduction.
Submitted by: Academy of Pakistan
A.Throttling
B.Condenser
C.Evaporator
D.Refrigerant cooling
Explanation: The correct answer is Condenser.
Submitted by: Academy of Pakistan
A.Declining balance
B.Neither A. nor B.
C.Both A. and B.
D.Straight line method
Explanation: The correct answer is Neither A. nor B..
Submitted by: Academy of Pakistan
A.Decreases the hardness of coke
B.Decreases the abrasion resistance of coke
C.None of these
D.Causes brittleness in steel
Explanation: The correct answer is None of these.
Submitted by: Academy of Pakistan
A.The boiling point of a solution is affected by liquid head as well as boiling point elevation
B.Heat transfer from a hot body to cold body by the emission of heat waves is called radiation
C.Filmwise condensation takes place on non-wettable surfaces
D.None of these
Explanation: The correct answer is Filmwise condensation takes place on non-wettable surfaces.
Submitted by: Academy of Pakistan
A.Square root of time
B.Time
C.Square of time
D.Cube of time
Explanation: The correct answer is Square root of time.
Submitted by: Academy of Pakistan