Pick out the wrong statement pertaining to the use of valve tray, seive tray and bubble cap trays in continuous distillation column ?

Question

Xaibi Aslam · Accepted Answer

Maintenance cost for valve and sieve trays are comparatively more than bubble cap tray due to their relatively complicated construction features

Xaibi Aslam · Answer

Bubble cap trays though most expensive are the best in situations, where low vapour rates is to be handled and a positive liquid seal is essential at all flow rates

Xaibi Aslam · Answer

Murphree efficiency of all the three trays are nearly equal, however the peak efficiency is generally higher for sieve and valve trays than the bubble cap

Xaibi Aslam · Answer

Valve trays have the highest turn down ratio (i.e. the ratio of the highest to the lowest vapour flow rates) and thus provide the maximum flexible operating range

Question #85884