1. A pitot tube is exposed to air flow which has a uniform velocity of 10 m/s. The probe is connected to a U-tube manometer with a water column of m total length. The limb diameter is so chosen that the manometer is critically damped. Find the time required to make a measurement on the manometer. Hint : Show that the limb diameter is 0.78 mm. To reach 99% of the steady state reading (or better), show that time should satisfy the inequality
m total length. The limb diameter is so chosen that the manometer is critically damped. Find the time required to make a measurement on the manometer. Hint : Show that the limb diameter is 0.78 mm. To reach 99% of the steady state reading (or better), show that time 
should satisfy the inequality 
