What is the hydraulic grade line? How does it differ from the energy grade line? Under what conditions do both lines coincide with the free surface of a liquid?

Define static, dynamic, and hydrostatic pressure. Under what conditions is their sum constant for a flowstream?

A hair dryer is basically a duct of constant diameter in which a few layers of electric resistors are placed. A small fan pulls the air in and forces it through the resistors where it is heated. If the density of air is 1.20 kg / m $^3$ at the inlet and 0.95 kg / m $^3$ at the exit, determine the percent increase in the velocity of air as it flows through the dryer.

A hair dryer is basically a duct of constant diameter in which a few layers of electric resistors are placed. A small fan pulls the air in and forces it through the resistors where it is heated. If the density of air is $1.20 \mathrm{~kg} / \mathrm{m}^{3}$ at the inlet and $1.05 \mathrm{~kg} / \mathrm{m}^{3}$ at the exit, determine the percent increase in the velocity of air as it flows through the dryer.

When is the flow through a control volume steady?

Express the Bernoulli equation in three different ways using (a) energies, (b) pressures, and (c) heads.

When is the flow through a control volume steady?

A hair dryer is basically a duct of constant diameter in which a few layers of electric resistors are placed. A small fan pulls the air in and forces it through the resistors where it is heated. If the density of air is $1.20 ~\mathrm{\frac{kg}{m^3}}$ at the inlet and $0.95 ~\mathrm{\frac{kg}{m^3}}$ at the exit, determine the percent increase in the velocity of air as it flows through the dryer.

A hair dryer is basically a duct of constant diameter in which a few layers of electric resistors are placed. A small fan pulls the air in and forces it through the resistors where it is heated. If the density of air is $1.20 \mathrm{~kg} / \mathrm{m}^3$ at the inlet and $1.05 \mathrm{~kg} / \mathrm{m}^3$ at the exit, find the percent increase in the velocity of air as it flows through the hair dryer.

The water level in a tank is 55 ft above the ground. A hose is connected to the bottom of the tank, and the nozzle at the end of the hose is pointed straight up. The tank is at sea level, and the water surface is open to the atmosphere. In the line leading from the tank to the nozzle is a pump, which increases the water pressure by 10 psia. Determine the maximum height to which the water stream could rise.

In a steady, two-dimensional flow field in the xy - plane, the x-component of velocity is $u=a x+b y+c x^{2}$ where a, b, and c are constants with appropriate dimensions. Generate a general expression for velocity component v such that the flow field is incompressible.

Express the Bernoulli equation in three different ways using (a) energies,(b) pressures, and (c) heads.

Briefly explain the similarities and differences between the material derivative and the Reynolds transport theorem.

Express the Bernoulli equation in three different ways using

(a) energies,

(b) pressures, and

(c) heads.