3941. Removable connection of tubes to tube sheet is called
ferrule
socket
nipple
saddle
✅ The correct answer is option A.
Chemical Engineering
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3942. __________ is the determining factor for the number of bubble caps to be used per tray.
Permissible slot velocity
Tray diameter
Liquid load
Vapor load
✅ The correct answer is option A.
3944. Rivets are generally specified by the
head diameter
shank diameter
overall length
none of these
✅ The correct answer is option B.
3945. For a given design of bubble cap, the number of bubble caps to be used per tray is set by the
allowable gas velocity through the slots.
plate spacing.
diameter of the column.
all (a), (b) and (c).
✅ The correct answer is option A.
3946. Pick out the wrong statement pertaining to the design of the distillation column.
Generally, a skirt clerance of 0.5″ to 1.5′ is recommended to prevent plugging of the slots by residue build up.
The purpose of the slot is to disperse the gas into the liquid in the form of small bubbles.
If sufficient slot area is not provided, the gas may pass through the skirt clearance.
none of these.
✅ The correct answer is option D.
3947. Fresh water carrying pipelines in chemical industries are coloured with __________ color.
sea green
brown
yellow
red
✅ The correct answer is option A.
3948. In condenser, the cooling water is passed in the tube side in a pass arrangement, because
it reduces heat transfer area.
more thinner tubes can be used.
pressure drop is reduced.
it makes condenser compact.
✅ The correct answer is option A.
3949. Apex angle of conical heads used in the bottom heads of chemical process equipments is usually
30°
45°
60°
75°
✅ The correct answer is option C.
3950. The thermal stress in a metallic bar does not depend upon the
changes in temperature.
cross-sectional area.
both (a) and (b).
neither (a) nor (b).
✅ The correct answer is option B.