Chemical Engineering MCQs

A. Is always below
B. Is the evolute of
C. Intersects at right angle
D. Is tangential to

A. 0.5
B. 1
C. 1.5
D. 2

A. Cavitation
B. Low speed of impeller
C. Its operation with delivery valve closed for considerable time after starting the pump
D. Off centering of pump with motor

A. Less than the vapour pressure of the liquid at that temperature
B. Greater than the vapour pressure of the liquid at that temperature
C. Equal to the vapour pressure
D. Equal to the developed head

A. Axial flow mixers
B. Low speed impeller
C. Used for mixing liquids of high viscosity
D. Radial flow mixers

A. Use of floats of different densities
B. No means
C. Increasing the diameter of the float
D. Decreasing the diameter of the float

A. 1,300
B. 10,000
C. 100,000
D. None of these

A. 0.1
B. 0.5
C. 0.94
D. 1

A. More
B. Less
C. Same
D. Unpredictable

A. Kinetic head gets converted into static head
B. Moving stream gradually reduces velocity
C. Mean velocity remains constant
D. None of these