Home » Mechanical Engineering » Hydraulics and Fluid Mechanics

Definition check: ideal fluid properties An ideal fluid is defined by two key properties in continuum mechanics. Decide whether the statement is correct: "An ideal fluid is frictionless and incompressible." Choose the correct option.

Q: Definition check: ideal fluid properties An ideal fluid is defined by two key properties in continuum mechanics. Decide whether the statement is correct: "An ideal fluid is frictionless and incompressible." Choose the correct option.

Concept/Approach An ideal fluid has no viscosity (frictionless) and is incompressible. These assumptions underpin Euler's equations and Bernoulli's equation for inviscid flow. Final Answer True

Difficulty: Easy

True
False

Correct Answer: True

Explanation:

Concept/Approach
An ideal fluid has no viscosity (frictionless) and is incompressible. These assumptions underpin Euler's equations and Bernoulli's equation for inviscid flow.

Final Answer
True

← Previous Question Next Question→

More Questions from Hydraulics and Fluid Mechanics

Head loss due to sudden enlargement in a pipe: write the correct formula A pipeline of diameter d₁ along AB carries liquid and is suddenly enlarged at B to diameter d₂ for the downstream length BC. Assume steady incompressible flow with negligible losses other than the separation loss at the enlargement. Choose the expression for the head loss across the sudden enlargement.
Rectangular notch (weir) discharge formula For a sharp-crested rectangular notch of width b with head H above the sill and coefficient of discharge C_d, select the correct standard expression for discharge.
External mouthpiece: pressure at vena contracta relative to atmosphere In a free-discharging external mouthpiece, the absolute pressure head at the vena contracta is ____ the atmospheric pressure head by approximately 0.89 times the height of liquid above the vena contracta. Choose the correct completion.
Equation of continuity for incompressible, steady flow Let a₁, v₁ be area and mean velocity at section 1, and a₂, v₂ at section 2 of the same streamtube. Select the correct continuity relation.
Definition of a broad-crested weir A weir is termed broad-crested when the width of its crest is ____ half of the head (water depth) over the crest. Choose the correct completion.
Capillary rise in a small tube dipped in water: identify the cause A narrow glass tube is dipped into water and the water rises in the tube. State whether the rise is due to viscosity or another effect.
Piezometer reading: what quantity does it measure? A simple piezometer tube is connected to a pipeline to measure pressure. Choose the correct form of the measured quantity.
Experimental determination of coefficient of viscosity Which of the following methods can be used to determine a liquid's dynamic viscosity? Select the correct option.
Energy grade line (TEL) vs hydraulic grade line (HGL) In pipe flow, the total energy line lies above the hydraulic gradient line by what amount? Choose the correct quantity.
Euler's equation of motion for inviscid flow: differential form Select the correct differential relation along a streamline for steady, frictionless flow of a fluid of density ρ.

Discussion & Comments

No comments yet. Be the first to comment!

Join Discussion