Explore topic-wise MCQs in Chemical Engineering.

This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Chemical Engineering knowledge and support exam preparation. Choose a topic below to get started.

1.

The area under the curve of exit age distribution integrated between time, t = 0 and t = ∞ is ____

A. 0
B. 2
C. Unity
D. Infinite
Answer» D. Infinite
Discussion
2.

The average residence time obtained from exit age distribution is ____

A. τ = t2ʃ tC(t)dt
B. τ = \(\int_0^∞\)E(t)dt
C. τ = \(\frac{ʃ tE(t)dt}{ʃ E(t)dt}\)
D. τ = \(\frac{ʃ tC(t)dt}{ʃ dt}\)
Answer» C. τ = \(\frac{ʃ tE(t)dt}{ʃ E(t)dt}\)
Discussion
3.

The average residence time obtained from cumulative age distribution is ____

A. τ = \(\frac{ʃtC(t)dt}{ʃ C(t)dt} \)
B. τ = ʃ tC(t)dt
C. τ = \(\frac{ʃ tC(t)dt}{ʃ dt} \)
D. τ = \(\frac{ʃ C(t)dt}{ʃ tC(t)dt} \)
Answer» B. τ = ʃ tC(t)dt
Discussion
4.

Exit age distribution and F(t) are related as ____

A. \(\frac{dF}{dt}\) = E
B. \(\frac{dE}{dt}\) = F
C. F × t = E
D. E × V = F
Answer» B. \(\frac{dE}{dt}\) = F
Discussion
5.

State true or false.The average residence time (t) of a fluid element is given by t = ʃ tF(t)dt, integrated between time t = 0 and t = ∞.

A. True
B. False
Answer» B. False
Discussion
6.

State true or false.The time spent by different fluid elements in the reactor is measured by a technique called the stimulus–response technique.

A. False
B. True
Answer» C.
Discussion
7.

If M is the total amount of tracer injected and v is the volumetric flow rate of the effluent, then what is the Relationship between cumulative and exit age distribution?

A. E = \(\frac{C}{(\frac{M}{v})} \)
B. E = \(\frac{M}{(v)} \)
C. E = \(\frac{C}{(Mv)} \)
D. E = \(\frac{MC}{(v)} \)
Answer» B. E = \(\frac{M}{(v)} \)
Discussion