Which of the following statement is false? a) Orifice flow meters can be used in wide range of pipe sizes (1.25 cm to 150 cm). b) In rotameter, the float or bob material has a specific gravity higher than that of the fluid to be metered. c) Tapings communicate with the two limbs of a U-tube differential manometer. d) The coefficient of pressure in orifice meter has a very high value