Question

which of the following has no effect on water pressure and flow?
how smooth the pipe is
what the static pressure is
how fast the valve closes
how much water we are trying to move
how high we are pushing it uphill
question 47
to meet common standards, we have to inspect all of the following except
water supply and distribution system
waste disposal systems

Explanation:

1. For the first question: The smoothness of the pipe affects friction and thus flow and pressure. Static pressure is a key factor in determining water - pressure and flow. How fast the valve closes can cause water - hammer effects which impact pressure and flow. The amount of water being moved affects flow rate and pressure. The height of the uphill push affects the head pressure, but how high we are pushing it uphill in isolation (without considering the overall system) has no direct impact on the internal water - pressure and flow within the pipe in a steady - state situation.
2. For the second question (incomplete as options are not fully shown), but generally, water supply and distribution systems and waste disposal systems are important for meeting common standards in water - related infrastructure.

Answer:

1. how high we are pushing it uphill
2. (Incomplete question, unable to provide a full answer for this part)