Technician A says that a hat can help keep your hair clean when working on a vehicle. Technician B says that chemical gloves may be used when working with solvent. Who is correct?
O Technician A
O Technician B
O Both Technician A and Technician B
O Neither Technician A nor Technician B

Water in a partially filled large tank is to be supplied to the roof top, which is 8 m above the water level in the tank, through a 2.2-cm-internal-diameter pipe by maintaining a constant air pressure of 300 kpa (gage) in the tank. if the head loss in the piping is 2 m of water, determine the discharge rate of the supply of water to the roof top in liters per second.