Pick out the wrong statement: o Longer tubes are less expensive per unit heat transfer area as compared to shorter tubes o Plates with butt welded joints are cheaper than lap welded joints since...

Pick out the wrong statement:

o Longer tubes are less expensive per unit heat transfer area as compared to shorter tubes
o Plates with butt welded joints are cheaper than lap welded joints since squaring of plates is unnecessary
o A cost index is merely a number for a given year showing the cost at the time relative to a certain base year
o None of these
o Turnover ratio of a chemical plant is the ratio of gross annual sales to the fixed capital investment