Search
.Management Sciences
Category: CHEMICAL ENGINEERING
Maintenance cost of a ______________ pump for a particular duty is the least?
A. Centrifugal
B. Reciprocating
C. Volute
D. Gear
Cumene is the starting material for the production of________________?
A. Benzoic acid
B. Phenol and acetone
C. Isoprene
D. Styrene
When does the heat generated by fluid friction becomes appreciable compared to the heat transferred between the fluids ?
A. At high fluid velocity
B. At low velocity
C. When fluid flows past a smooth surface
D. None of these
In a drilling process, the metal is removed by both shearing & extrusion. General purpose drills are made of_________________?
A. Stainless steel
B. Mild steel
C. High speed steel
D. High carbon steel
Vertical vessels are not supported by____________________?
A. Brackets
B. Skirts
C. Columns
D. Saddles
Weep holes provided in the plates of a distillation column ____________________?
A. Facilitate draining out liquid from a tray when the unit is not in operation
B. Are normally located near the overflow weir so that any delivery of liquid during operation
follows approximately the same path as the overflow fluid
C. Must be large enough (usually 1/4″ to 5/8″ dia) to prevent plugging but should not deliver
excessive amount of fluid during operation
D. All A., B. and C.
Pick out the correct statement___________________?
A. Centre to centre distance between two consecutives rivets in a row is called the pitch
B. A riveted joint made in overlapping plates is called butt joint
C. Hole size drilled in riveted plates is less than the actual size of the rivet
D. None of these
Stoke’s equation is valid in the Reynolds number range__________________?
A. 0.01 to 0.1
B. 0.1 to 2
C. 2 to 10
D. 10 to 100
Recent Comments