Which of the following is the most preferable frequency for ultrasonic sterilization?

The steam is injected into the system via a nozzle.

Which of the following is not the property of Chromium film?

The AISI grade 316 contains _______ amount of chromium.

The AISI grade 317 contains ________ amount of molybdenum.

The purpose of aeration is to provide ___________

Which of the following is not the component of aeration and agitation system?

Which of the following agitator consists of blades directly attached to a boss on agitator shaft?

Which of the following sparger is made of ceramic or metals?

Who developed the combined-agitator sparger?

The nozzle sparger does not get blocked.

What led to the development of Walhof-type fermenter?

The diameter of Waldhof-type fermenter was _______

The tower beer fermenter was patented by _________

‘Dowpac’ is derivative of _____________

The resistance _________ with increase in temperature.

Which of the following devices is not used for pressure measurement?

Who invented the Bourdon tube?

Which of the following measures the pressure with change in electrical resistance?

Ion-specific sensors are the types of on-line sensors.

Antifoam probe is a type of off-line sensor.