Explore topic-wise MCQs in Bioprocess Engineering Questions and Answers.

This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Bioprocess Engineering Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.

1.

For the pelleting of the microsomal fraction from a liver homogenate, an ultracentrifuge is operated at a speed of 40000 rpm. What is the angular velocity, ω, in radians per second?

A. 3888.8 rad s-1
B. 5680.8 rad s-1
C. 4188.8 rad s-1
D. 4288.8 rad s-1
Answer» D. 4288.8 rad s-1
Discussion
2.

What is the applied centrifugal field at a point equivalent to 5 cm from the centre of rotation and an angular velocity of 3000 rad s-1?

A. 4.5 × 10-7 cm s-2
B. 5.4 × 10-7 cm s-2
C. 3.4 × 10-7 cm s-2
D. 6.5 × 10-7 cm s-2
Answer» B. 5.4 × 10-7 cm s-2
Discussion
3.

A viscous solution contains particles with a density is to be clarified by centrifugation. The solution density is and its viscosity is 80 cp. The centrifuge has a bowl with and 3 1200 / p ρ = kg m3 ρ = 850 / kg m2r m = 0.02 1 r = 0.01 m and height b=0.25 m. Calculate the critical particle diameter of the largest particles in the exit stream if N=15000 rpm and flow rate q=0.002 m3 /hr?

A. 2.9 μm
B. 2.66 μm
C. 3.15 μm
D. 2.57 μm
Answer» E.
Discussion
4.

In 500 × g, what does g represent in accordance to centrifugation?

A. Gravitational force
B. Centrifugal force is 500 times greater than earthly gravitational force
C. Centrifugal force is 500 times less than earthly gravitational force
D. Centrifugal force is 500 times same as that of earthly gravitational force
Answer» C. Centrifugal force is 500 times less than earthly gravitational force
Discussion