A. 0.01
B. 0.3
C. 0.75
D. 0.95
CHEMICAL ENGINEERING
______________ is produced by the dehydrogenation of ethyl benzene ?
A. Styrene
B. Ethyl alcohol
C. Cumene
D. Phenol
A screen is said to be blinded, when the___________________?
A. Over-sizes are present in undersize fraction
B. Under-sizes are retained in oversize fraction
C. Screen is plugged with solid particles
D. Screen capacity is abruptly increased
Very small pressure difference (< 5 mm water column) can be most conveniently measured by a/an _____________ manometer?
A. U-tube water
B. U-tube mercury
C. Inclined tube mercury
D. Inclined tube water
Bernoulli’s equation for steady, frictionless, continuous flow states that the ______________ at all sections is same?
A. Total pressure
B. Total energy
C. Velocity head
D. None of these
Which of the following is a rich fuel gas ?
A. Producer gas
B. Coal gas from underground gasification of coal
C. Refinery gases
D. None of these
In case of an absorber, the operating _______________?
A. Line always lies above the equilibrium curve
B. Line always lies below the equilibrium curve
C. Line can be either above or below the equilibrium curve
D. Velocity is more than the loading velocity
Pick out the wrong statement about cavitation?
A. Sudden reduction of pressure in a fluid flow system caused by flow separation, vortex formation or abrupt closing of valve leads to cavitation
B. Cavitation may be caused due to boiling of liquid by decreasing the pressure resulting in
formation & collapse of vapor cavities
C. Cavitation begins at higher static pressure and lower velocity in larger diameter pipelines
resulting in audible noise
D. Large scale cavitation cannot damage pipeline, restrict fluid flow and damage steam turbine
blades
The molecular weight of heavy water is_________________?
A. 10
B. 18
C. 20
D. 36
Wrought iron is a suitable material of construction for handling _____________ solutions?
A. Dilute acidic
B. Concentrated acidic
C. Alkalis & alkaline
D. None of these
