English
Hindi

Question

Download Solution PDF

In which of the following numbers gravitational force is the most significant?

This question was previously asked in
MPPSC AE Mechanical Official Paper (Held on 3 July 2022)
Download PDF Attempt in App
View all MPPSC AE Papers >
  1. Froude Number
  2. Mach Number
  3. Weber Number
  4. Euler Number

Answer (Detailed Solution Below)

Option 1 : Froude Number
Free Tests
View all Free tests >
Free
MPPSC AE Civil (Important Topics): Mini Mock Test
20 Qs. 60 Marks 25 Mins
Start Now

Detailed Solution

Download Solution PDF

Concept: Various Numbers that are used for dimensional analysis are tabulated below.

Reynolds Number (Re)

Froude Number (Fr)

Euler Number (Eu)

Newton Number (N)

Mach Number (M)

Weber Number (W)

Explanation:

Froude number is the ratio of inertial force to the gravitation force:

Froude number =  

Where fi = inertial force, fg = gravitation force

So, for the Froude Number number, the gravitational force is the most significant.

Download Solution PDF
Latest MPPSC AE Updates

Last updated on Jul 8, 2025

-> MPPSC AE exam date 2025 will be conducted in July. 

-> Successfully registered candidates will be issued the MPPSC Assistant Engineer admit card 2025. 

-> MPPSC AE 2025 Notification was released on 31st December, 2024. Candidates can apply online starting from 14th March to 13th April, 2025 (12:00 pm).

-> A total of 23 vacancies of Assistant Engineers (AE) in the Civil, Mechanical and Electrical disciplines have been announced.

-> Candidates will be shortlisted on the basis of the MPPSC State Engineering Services Exam. 

->  Candidates who will be selected will finally get a salary range between Rs. 15,600 to RS. 39,100/-.

-> With Degree in Engineering as the basic educational qualification, it is a great opportunity for various job seekers.

-> Candidates appearing in the exam can refer to the MPPSC AE syllabus and exam pattern for their preparations. 

-> Applicants can practice MPPSC AE previous year question papers to ace the exam with a good score. 

Exams Tests Super Practice

More Froude Model Law Questions

Q1.The Froude number is the ratio of two forces, which are:
Q2.In which of the following numbers gravitational force is the most significant?
Q3.When Froude’s number is more than 1, then the flow is termed as
Q4.In a flow condition where both viscous and gravity forces dominate and both the Froude number and Reynolds’s number are same in model and prototype, and the ratio of kinematic viscosity of model to that of the prototype is 0.0894, what is the model scale?
Q5.If the Froude number in open channel flow is less than 1, then the flow is called ________.
Q6.The relationship between the length scale ratio  and the velocity scale ratio  in hydraulic models, in which Froude dynamic similarity is maintained, is:
Q7.The model of a propeller, 3 m diameter, cruising at 10 m/s in air, is tested in a wind tunnel on a 1 : 10 scale model. If thrust of 50 N is measured on the model at 5 m/s wind speed, then thrust on prototype will be
Q8.For similitude with gravity force, velocity ratio is

More Dimensional and Model Analysis Questions

Q1.In case of incompressible flow, for flow around immersed bodies
Q2.Which of the following is correct equation of Weber's number (We)? (where Fi = inertia force, Fs = surface tension force)
Q3.Calculate the Reynolds number if the kinematic viscosity of water is 0.01 × 10-4 m2/s, which is flowing through a pipe of diameter 200 mm with the velocity of 5 m/s.
Q4.The ratio of the inertia and viscous forces acting in any flow, ignoring other forces is called as 
Q5.The Froude number is the ratio of two forces, which are:
Q6.In 1 in 30 model of a spillway, the velocity is 3 m/s. The corresponding velocity in the prototype is: 
Q7.Consider the following statements and identify the correct answer. Statement A: The Froude's number is used to compare the wave making resistance between bodies of various sizes and shapes. Statement B: The Froude's number is defined as the square root of the ratio of the inertia force of a flowing fluid to the gravity force.
Q8.Mach number is the ratio of interia force to:
Q9.The time scale ratio for a model based on Froude's law criterion in terms of length scale ratio (le) is :
Q10.Kinematic similarity between model and prototype is :
Suggested Test Series
View All >
AE & JE Mechanical Engg. Exams Previous Year Papers Mock Test
178 Total Tests with 3 Free Tests
Start Free Test
MPPSC State Service Prelims Mock Tests 2025
259 Total Tests with   1 Free Tests
Start Free Test

More Fluid Mechanics Questions

Q1.Which of the following best defines vapour pressure in a liquid?
Q2.Priming of a pump refers to:
Q3.How does the volute shape in a single volute pump casing affect performance?
Q4.One challenge associated with double volute casings is:
Q5.Manometric head is defined as:
Q6.Compared to axial flow pumps, radial flow pumps typically:
Q7.How does atmospheric pressure influence gauge pressure measurements?
Q8.Fluid pressure is defined as:
Q9.A pitot tube is primarily used to measure:
Q10.A pump discharges water with a manometric head of 20 m. If the density of water is 1000 kg/m3 and gravity is 9.81 m/s2 , what is the approximate pressure increase provided by the pump?
Testbook Edu Solutions Pvt. Ltd.
1st & 2nd Floor, Zion Building,
Plot No. 273, Sector 10, Kharghar,
Navi Mumbai - 410210
support@testbook.com
Toll Free:1800 833 0800
Office Hours: 10 AM to 7 PM (all 7 days)
Company
About usCareers We are hiringTeach Online on TestbookPartnersMediaSitemap
Products
Test SeriesTestbook PassOnline CoursesOnline VideosPracticeBlogRefer & EarnBooks
Copyright © 2014-2022 Testbook Edu Solutions Pvt. Ltd.: All rights reserved
User PolicyTermsPrivacy
Hot Links： teen patti master game teen patti gold downloadable content teen patti game - 3patti poker teen patti casino download