1. Determine the flow rate through a 0.2-m gate valve with upstream pressure of 236 kPa when the valve is a. open; b. 1/4 closed; c. 1/2 closed; d. 3/4 closed 2. Water at 20 C flows through a...

1. Determine the flow rate through a 0.2-m gate valve with upstream pressure of 236 kPa when the valve is

a. open;

b. 1/4 closed;

c. 1/2 closed;

d. 3/4 closed

2. Water at 20C flows through a cast-iron pipe at a velocity of 34 m/s. The pipe is 400 m long and has a diameter of 0.18 m. Determine the head loss due to friction.