A.Transportation lag
B.First order system
C.None of these
D.Second order system
Explanation: The correct answer is First order system.
Submitted by: Academy of Pakistan
Chemical Engineering MCQs: 8,342 practice questions with answer choices and available explanations. Page 243 of 557.
Chemical Engineering MCQs
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A.0.45
B.0.85
C.0.55
D.0.35
Explanation: The correct answer is 0.45.
Submitted by: Academy of Pakistan
A.Zeroth
B.First
C.Third
D.Second
Explanation: The correct answer is Second.
Submitted by: Academy of Pakistan
A.Stainless steel
B.Wrought iron
C.Cast iron
D.Steel
Explanation: The correct answer is Wrought iron.
Submitted by: Academy of Pakistan
A.For hard material’s crushing, the reduction ratio should not exceed 4
B.Both the rolls run necessarily at the same speed
C.Maximum feed size determines the required roll diameter
D.Reduction ratio and differential roll speed affect production rate & energy consumed per unit
Explanation: The correct answer is Both the rolls run necessarily at the same speed.
Submitted by: Academy of Pakistan
A.Treatment of spent fuel of nuclear reactor
B.Drilling of petroleum wells and pickling of steel sheets
C.Manufacture of cationic detergent
D.None of these
Explanation: The correct answer is Drilling of petroleum wells and pickling of steel sheets.
Submitted by: Academy of Pakistan
A.SO2
B.Neither A. nor B.
C.Both A. & B.
D.CO2
Explanation: The correct answer is Both A. & B..
Submitted by: Academy of Pakistan
A.Meta
B.Ortho
C.Pyro
D.None of these
Explanation: The correct answer is Ortho.
Submitted by: Academy of Pakistan
A.Neither A. nor B
B.Enthalpy
C.Internal energy
D.Either A. or B
Explanation: The correct answer is Internal energy.
Submitted by: Academy of Pakistan
A.Equal to
B.More than
C.Either B. or C; depends on the type of alloy
D.Less than
Explanation: The correct answer is Less than.
Submitted by: Academy of Pakistan
A.Cellulose derivatives, Polyamides, Polyurethane
B.Polypropylene, Poly vinyl chloride, Silicon
C.Butadiene copolymers, Polyamides, Urea-formaldehyde
D.Cellulose derivatives, Polyisoprene, Polyethylene
Explanation: The correct answer is Cellulose derivatives, Polyisoprene, Polyethylene.
Submitted by: Academy of Pakistan
A.γ & α
B.β & γ
C.α & β
D.α, β, & γ
Explanation: The correct answer is β & γ.
Submitted by: Academy of Pakistan
A.Re-0.8, Re0.5
B.Re0.8, Re-0.5
C.Re0.5, Re0.8
D.Re0.8, Re0.5
Explanation: The correct answer is Re0.8, Re0.5.
Submitted by: Academy of Pakistan
A.The intensity of X-rays can be measured by ionisation current produced due to the ionisation
B.The quality of X-rays can be controlled by varying the anode-cathode voltage
C.Crystal structure of a material can be studied by an electron microscope
D.The X-rays cannot be deflected by electric field unlike cathode rays
Explanation: The correct answer is The quality of X-rays can be controlled by varying the anode-cathode voltage.
Submitted by: Academy of Pakistan
A.Rate of drying decreases abruptly
B.Surface evaporation of unbound moisture occurs
C.Cracks develop on the surface of the solid
D.None of these
Explanation: The correct answer is Surface evaporation of unbound moisture occurs.
Submitted by: Academy of Pakistan