1- Viscous forces can typically be neglected in momentum balances for fluid flowing in horizontal pipes. True False 2- Pressure forces can often be neglected in momentum balances for flow in a horizontal pipe. True False 3- Which force is important for momentum balance of a jet striking a wall? A) Pressure Force B) Gravitational Force C) Viscous force D) Force of wall on the jet 4- Gravitational forces can often be neglected in momemtum balances for flow in a horizontal pipe. True False 5- Which of the following is not a vector quantity A) Momentum B) Velocity C) Mass D) Acceleration