Question

What is maximum speed of low speed centrifuge?

(a) 1000-2000rpm

(b) 3000-4000rpm

(c) 4000-5000rpm

(d) 5000-6000rpm

This question was addressed to me at a job interview.

My query is from Mechanical Separation in section Mechanical Separation of Food Processing Unit Operations

Answer 1

The correct answer is (c) 4000-5000rpm

To explain: Most laboratories have a low-speed centrifuge used for routine sedimentation of heavy particles and the low-speed centrifuge has a maximum speed of 4000-5000rpm.