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.Management Sciences
Category: Chemical Engineering Basics
An example of unsteady non uniform flow is the flow of liquid under pressure through a__________________?
A. Tapering pipe at constant flow rate
B. Tapering pipe at either decreasing or increasing flow rate
C. Long pipeline of constant diameter
D. None of these
In chemical dehumidification of air___________________?
A. Both specific humidity & dry bulb temperature increases
B. Both specific humidity & dry bulb temperature decreases
C. Specific humidity decreases & dry bulb temperature increases
D. Specific humidity increases & dry bulb temperature decreases
Pick out the wrong statement about nucleate boiling ?
A. Bubble generation is by expansion of entrapped gas/vapour at small cavities in the surface
B. Surface temperature is greater than the saturation temperature of the liquid
C. Heat transfer from the surface of the liquid is less than that in film boiling
D. The temperature is less than that of film boiling
Maximum amount of thermal radiation is emitted at all wavelengths at any specified temperature by a/an ______________ body?
A. Grey
B. Black
C. Opaque
D. White
Lead is poured into the joint between two ______________ pipes?
A. Mild steel
B. Concrete
C. Cast iron
D. Asbestos cement
Circular cross section machine parts which are symmetrical about the axis of rotation are made by hot_____________________?
A. Piercing
B. Spinning
C. Drawing
D. Extrusion
Removal of non-condensable from steam or other vapour is termed as the ________________ process?
A. Condensation
B. Deaeration
C. Scavenging
D. Exhaust
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