1.1

Calculate the pressure due to a column of 0.5 m of

1. Water

2. Oil of specific gravity 0.8

3. Mercury of specific gravity 13.6.

1.2

The intensity of pressure at a point in a fluid is 4 N/cm ². Find the corresponding height of fluid when the fluid is

1. Water

2. Oil of specific gravity 0.9.

1.3

A bullet of mass 8 g travels at a speed of 400 m/s. It penetrates a target, which offers a constant resistance of 1000 N to the motion of the bullet. Calculate

1. The kinetic energy of the bullet

2. The distance through which the bullet has penetrated.

1.4

A hydraulic press has a ram of 25 cm diameter and a plunger of 4.0 cm diameter. Find the weight lifted by the hydraulic press when the force applied at the plunger is 400 N.

1.5

Calculate the gage pressure and absolute pressure at a point 3 m below the free surface of a liquid having a density of 1.53 10 ³ kg/m ³, if the atmospheric pressure is equal to 750 mm of mercury. The specific gravity of mercury is 13.6 and density of water is 1000 Kg/m ³.

1.6

The diameters of a pipe are 15 and 20 cm at sections 1 and 2 respectively. The velocity of water flowing through the pipe is 4 m/s at section 1. Determine the discharge through the pipe and also the velocity of flow at section 2.