Hydraulics Module 1 Quiz

<p>$\tau = \mu \frac{du}{dy}$ (D)</p> Signup and view all the answers

<p>The resistance of a fluid to compression. (B)</p> Signup and view all the answers

<p>Viscosity (D)</p> Signup and view all the answers

<p>$S = \frac{\gamma_{gas}}{\gamma_{air}} \times \frac{\rho_{gas}}{\rho_{air}}$ (C)</p> Signup and view all the answers

<p>The behavior of fluids that are either at rest or in motion (B)</p> Signup and view all the answers

<p>Hydraulics (A)</p> Signup and view all the answers

<p>The mass of fluid contained in a unit volume (A)</p> Signup and view all the answers

<p>$ ho = \frac{M}{V}$ (D)</p> Signup and view all the answers

<p>The weight of the fluid per unit volume (B)</p> Signup and view all the answers

<p>Liquids such as water and oil (D)</p> Signup and view all the answers

<p>$W = \rho g$ (B)</p> Signup and view all the answers

<p>Substances that can flow and change shape (B)</p> Signup and view all the answers

<p>Buoyant force (A)</p> Signup and view all the answers

<p>The weight of the fluid displaced (B)</p> Signup and view all the answers

<p>It is equal to the volume of the body (C)</p> Signup and view all the answers

<p>Conditions of static equilibrium (C)</p> Signup and view all the answers

<p>Depth of the object in the fluid (A)</p> Signup and view all the answers

<p>Dynamics of Rigid Bodies (B)</p> Signup and view all the answers

<p>4 units (A)</p> Signup and view all the answers

<p>Compute forces in submerged bodies (A)</p> Signup and view all the answers

<p>Dynamics of Rigid Bodies (B)</p> Signup and view all the answers

<p>Density (B)</p> Signup and view all the answers

<p>Characterize liquids according to their properties (D)</p> Signup and view all the answers

<p>The pressure of the liquids (D)</p> Signup and view all the answers

<p>4 units (D)</p> Signup and view all the answers

<p>Hydroelectric power generation (C)</p> Signup and view all the answers

<p>Jessa Mae A. Gomez (A)</p> Signup and view all the answers

<p>Comparing pressures in moving and static fluids (A)</p> Signup and view all the answers

<p>176.85 N (B)</p> Signup and view all the answers

<p>0.1785 kg/m³ (A)</p> Signup and view all the answers

<p>4.2 kN/m³ (A)</p> Signup and view all the answers

<p>79.5 KPa (A)</p> Signup and view all the answers

<p>11.76 kN (B)</p> Signup and view all the answers

<p>1260 kg/m³ (B)</p> Signup and view all the answers

<p>0.452 m³ (D)</p> Signup and view all the answers

<p>Gas constant for helium (B)</p> Signup and view all the answers

<p>$p_1V_1 = p_2V_2$ (A)</p> Signup and view all the answers

<p>$\frac{\mu}{\rho}$ (D)</p> Signup and view all the answers

<p>Pressure (B)</p> Signup and view all the answers

<p>Charles' Law (A)</p> Signup and view all the answers

<p>It is the same in all directions. (C)</p> Signup and view all the answers

<p>Absolute pressure = Gauge pressure + Atmospheric pressure (D)</p> Signup and view all the answers

<p>Pascal-seconds (Pa·s) (A)</p> Signup and view all the answers

<p>Combined Gas Law (D)</p> Signup and view all the answers

Characteristics of liquids that affect pressure, forces, and flow.

The force exerted by a fluid per unit area on a surface.

The branch of physics that studies fluids at rest.

A state where fluids are not in motion and maintain a constant pressure.

A state where fluids are actively flowing and exhibit different pressure characteristics.

Pressure exerted by the height of a fluid column above a point.

A measure of a fluid's resistance to flow.

An explanation of how the pressure of a fluid decreases as its speed increases.

The branch of physics that studies liquids and gases in motion and at rest.

The application of fluid mechanics in engineering with liquids, mainly water and oil.

The mass of a fluid per unit volume, expressed as 𝜌 = M/V.

The weight of a fluid per unit volume; usually used in fluid calculations.

Classification of fluids based on properties like viscosity, density, and compressibility.

States that pressure applied to a confined fluid is transmitted undiminished in all directions.

The ratio of a fluid's dynamic viscosity to its mass density.

An equation relating pressure, volume, mass, and temperature of an ideal gas: pV = mRT.

At constant temperature, the pressure and volume of a gas are inversely related: p1V1 = p2V2.

At constant pressure, the volume of a gas is directly proportional to its absolute temperature: V1/T1 = V2/T2.

At constant volume, the pressure of a gas is directly proportional to its absolute temperature: p1/T1 = p2/T2.

Relates pressure, volume, and temperature of a gas: p1V1/T1 = p2V2/T2.

The force acting normal to a given area: p = F/A.

The pressure intensity is the same at all points in a fluid at rest.

The upward force exerted by a fluid on a submerged object, equal to the weight of displaced fluid.

A principle stating that a body submerged in a fluid experiences a buoyant force equal to the weight of the fluid it displaces.

A condition where all forces acting on a body are balanced, resulting in no movement.

An object that is completely covered by a fluid.

The amount of fluid that is moved out of the way by a submerged object.

Characteristics of fluids, such as density, viscosity, and pressure, that affect their behavior in hydraulics.

Problems involving floating or submerged bodies and the forces acting on them due to fluid pressure.

Weight is the force due to gravity acting on an object's mass. For a 45 kg boulder at 395 m/s², weight = mass × gravity = 45 kg × (395 m/s²).

Mass density is the mass of a substance per unit volume. Helium density can be found using R and the ideal gas law with temperature and pressure.

Unit weight is the weight of a substance per unit volume, often expressed in KN/m³.

To find pressure below a reference point in a fluid, add the pressure at the reference point to the pressure contributed by the fluid column above it.

The mass and volume of glycerin can be used to find its weight and density. Given mass is 1200 kg, and volume is 0.952 m³.

Weight of glycerin can be calculated as weight = mass × gravity. For 1200 kg, use g = 9.81 m/s² to find its weight.

Density is the mass per unit volume of a substance, it helps to determine how heavy a material is for a given size.

Ratio of the density of a liquid or solid to the density of water.

Ratio of the density of a gas to the density of air.

Measure of a substance's resistance to uniform compression.

Fractional change in volume per unit change in pressure, at constant temperature.

Speed of sound in a material, determined by modulus and density.

Measure of internal resistance of a fluid to flow.

Force per unit area caused by fluid motion, related to viscosity.