A silicon carbide test coupon, 100 mm long (L) by 8 mm wide (b) by 6 mm high (d) is tested in a three point bend flexural test. If the specimen fails at a load of 450 N, and a part of this material with the same dimensions is used in service to support a load of 400 N, can we be confident that no failure will occur

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.