Fluid Mechanics MCQ on Dimensional and Model Analysis

This is an MCQ-based quiz on the topic of Fluid Mechanics MCQ on Dimensional and Model Analysis.

This includes the following:-

  1. Dimensional Homogenity

  2. Rayleighs Method

  3. Model Analysis

  4. Similitude-Types of Similarities

  5. Types of Forces Acting in Moving Fluid

  6. Model Testing of Partially Submerged Bodies

  7. Dimensionless Numbers

Start Quiz

What is the mathematical technique used to predict physical parameters?

Combustion analysis Pressure analysis Dimensional analysis Temperature analysis

Which among the following method is used to find a functional relationship with respect to a parameter?

Rayleigh’s method Rutherford’s method Newton’s laws Doppler effect

Which among the following is not the correct symbol?

Size- l Velocity – v Gravity – g Viscosity – a

Which among the following is the correct format for Rayleigh’s method?

D = f(l,ρ,μV,g) D = (l,ρ,μV,g) D = f D = f(lpv)

Why does Rayleigh’s method have limitations?

To many variables Format Exponents in between variables Many exponents

Which among the following is same as the Rayleigh’s method?

Buckingham method Dead weight method Conveyor method Ionization method

Which among the following is not a dimensionless number?

Reynolds Froude Mach Cartesian

What is a prototype?

A small-scale replica Actual structure Theory structure. Adopted structure

Advantage of a model analysis is_________

Performance cannot be predicted The relationships between the variable cannot be obtained Shear stress to thermal diffusivity Alternative designs can be predicted

Why do we need a model analysis?

For determining the dimensions To provide a safe design To check the shear stress To check the thermal diffusivity

The similarity between the motion of model and prototype is_________

Dynamic similarity Potential similarity Kinematic similarity Design similarity

The similarity between the forces of model and prototype is ________

Dynamic similarity Potential similarity Kinematic similarity Design similarity

Which among these forces does not act in a moving fluid?

Inertial force Viscous force Gravity force Drag

What is the formula for elastic force?

Elastic stress/area Elastic strain/area Elastic stress*area Elastics stress* Elastic strain

What is a model analysis?

A small-scale replica Actual structure Theory structure. Adopted structure
Quiz/Test Summary
Title: Fluid Mechanics MCQ on Dimensional and Model Analysis
Questions: 15
Contributed by:
NEO