Question 1 a. Define the terms: Atmospheric pressure and Absolute pressure. [4 marks] b. For the tank shown in Figure 1 below, calculate the depth of the water if the depth of the oil is 6.90 m and the gauge at the bottom of the tank reads 125.3 kPa. 18 marks) Oil Og = 0.861 HT Water Figure 1 c. For the differential manometer shown in Figure 2 below, calculate the pressure difference between points A and B. [8 marks] 150 mm Oil (59 = 0.90) Water 750 min Mercury isg=1354) SO Figure 2