1) The pressure of 14m water head is A O) 98.0566m2N; B O) X137293 Pa; C O) 98066.5 Pa; D O) none 2) The pressure of 120ft water head is A O) 1202.3ft2lbf; BXO) 7491.57ft2lbf; C O) 122.3ft2lbf; D O)none 3) A simple U-tube manometer is installed across an orifice meter. The manometer is filled with mercury (specific gravity of 13.6) and a liquid A (specific gravity 1.74). If the manometer reads 400mm, the density mercury is A O) 1360kg/m3; BXO) 13600kg/m3; C O) 136000kg/m3; D O) None; the measured pressure difference is AX O) 46522.7 Pa; B O) 2701.8 Pa; C O) 26941.92 Pa; D O) None