1.The pressure in Pascals at a depth of 1 m below the free surface of a body of water will be equal to

2.A hydraulic press has a ram of 15 cm diameter and plunger of 1.5 cm. It is required to lift a weight of 1 tonne. The force required on plunger is equal tc

3.At the centre line of a pipe flowing under pressure where the velocity gradient is zero, the shear stress will be

4.Cavitation will begin when

5.Bernoulli equation deals with the law of conservation of