EXAMIANS
The longitudinal stress induced in a thin walled cylinderical vessel under internal pressure is
YOUR ANSWER : ?
YOUR ANSWER : ?
Vertical condenser is advantageous to the horizontal condenser from operation point of view, when
YOUR ANSWER : ?
Which of the following efficiencies can be greater than 100%?
YOUR ANSWER : ?
Low pressure steam (with saturation temperature between 105 to 120°C) is usually used in the vacuum evaporators, which normally employ a vacuum of about __________ mm Hg (referred to a 760 mm mercury barometer).
YOUR ANSWER : ?
A high vapour velocity is required for high plate efficiency in a seive plate coloumn. The satisfactory value of operating vapor velocity for design purpose in seive plate column is about __________ percent of the flooding velocity.
YOUR ANSWER : ?
The function of manholes provided in the shell of a distillation column is to
YOUR ANSWER : ?
Angled baffles are preferred in the agitation tank to control the swirling action; if the viscosity of the liquid to be mixed is about 200 poise. However, the baffle may be completely eliminated for mixing liquids having viscoisty above __________ poise.
YOUR ANSWER : ?
Overall distillation column efficiency for most of the refinery columns can be given by (for μ = 0.07 - 1.4 cp and relative volatility < 4) (where η = overall column efficiency, % μ = molal average viscosity of feed at average column temperature and pressure, cp Δp = pressure drop per tray, psi)
YOUR ANSWER : ?
The ends of a cylinderical vessel can be closed by a head, which can be one of the four shapes. For the same thickness, choose the one which can withstand the highest pressure.
YOUR ANSWER : ?
Fresh water carrying pipelines in chemical industries are coloured with __________ color.
YOUR ANSWER : ?