@⇒ Agitation and aeration ⇒ Biochemical Engineering ⇒ Medical Science Engineering Multiple Choice Questions / Objective type questions, MCQ's, with question and answers, download free PDF, short cut notes, rapid fire notes, best theory

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Q1.	The range of width for the baffle in the fermenter is __________ times of vessel diameter
A.	1/10 to 1/12 [Correct Answer]
B.	1/8 to 1/10 [Wrong Answer]
C.	1/5 to 1/8 [Wrong Answer]
D.	none of these [Wrong Answer]
View Answer 1 -1 Explanation:- Answer : A Discuss it below : Click here for more comments


Q2.	Radial flow impellers
A.	provide high shear conditions for breaking up bubbles [Wrong Answer]
B.	direct flow towards the walls of the reactor [Wrong Answer]
C.	Both (a) and (b) [Correct Answer]
D.	provide low shear conditions and are suited for use in shear sensitive procesess [Wrong Answer]
View Answer 1 -1 Explanation:- Answer : C Discuss it below : Click here for more comments


Q3.	Power number is ratio of
A.	imposed forced to intertial force [Correct Answer]
B.	bouyant force to inertial force [Wrong Answer]
C.	gravitation force to inertial force [Wrong Answer]
D.	imposed force to gravitational force [Wrong Answer]
View Answer 2 -1 Explanation:- Answer : A Discuss it below : Click here for more comments


Q4.	When liquid is pumped through cooling coil in a stirred tank reactor to cool. Which of the following is not correct?
A.	If the stirrer speed is increased, the rate will be faster [Wrong Answer]
B.	Baffles in the tank will increase the rate of cooling [Wrong Answer]
C.	Faster cooling rates at a slower rate of pumping [Correct Answer]
D.	Faster cooling rates at a faster rate of pumping [Wrong Answer]
View Answer 1 -1 Explanation:- Answer : C Discuss it below : Click here for more comments


Q5.	The Intermig impeller is
A.	an axial flow impeller which can be used for the culture of aerobic organisms [Wrong Answer]
B.	directed upwards rather than towards the base of the reactor [Wrong Answer]
C.	a fork shaped extensions to the impeller facilitate bubble break up [Wrong Answer]
D.	All of the above [Correct Answer]
View Answer 1 -1 Explanation:- Answer : D Discuss it below : Click here for more comments

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