Test: Dimensional & Model Analysis - 1

Question 1

Dimensional analysis is useful in

Dimensional analysis deals with the process whereby all the important factors involved in a physical phenomenon are systematically arranged into dimensional group.

Accepted Answer

determining the dimensionless groups from the given variables

Answer

checking the correctness of a physical equation

Answer

determining the number of variables involved in a particular phenomenon

Answer

the exact formulation of a physical phenomenon

Question 2

The principle of dimensional homogenity implies that

Accepted Answer

only the variables with the same dimensions may be added or subtracted.

Answer

only the dimensional quantities may be added or substracted.

Answer

only the variables with the same dimensions may be multiplied or divided.

Answer

dimensions of the two sides of the equation may not be same.

Question 3

A 1 : 20 model of a spillw ay dissipated 0.25 hp. The corresponding prototype horsepower dissipated will, be

Accepted Answer

8944.30 hp

Answer

0.25 hp

Answer

5.00 hp

Answer

447.20 hp

Question 4

Which of the following is not a dimensionless number?

Accepted Answer

the Manning’s coefficient, N

Answer

the coefficient of lift, C_L

Answer

the pipe friction factor, f

Answer

the coefficient of discharge, C_d

Question 5

Dynamic similarity between model and prototype implies that

Accepted Answer

the forces acting at corresponding locations are same

Answer

the flow pattern is similar

Answer

there is point to point correspondence between the two systems

Answer

both the systems undergo similar rates of change of motion

Question 6

Principles of similitude form the basis of

Accepted Answer

designing and testing models so that the results can be worked out for the prototype

Answer

performing acceptance tests

Answer

comparing two identical equipments

Answer

comparing similarty between design and actual equipment

Question 7

Reynolds model law is applicable for

Accepted Answer

flow through low speed turbomachines

Answer

flow over the spillway of a dam

Answer

flow of blood in veins and arteries

Answer

water hammer created in penstocks

Question 8

The Froude’s model law would not be applicable for the analysis of

Accepted Answer

pressure rise due to sudden closure of valves

Answer

flow over the spillway of a dam

Answer

flow of liquid jets from orifices

Answer

motion of ship in rough and turbulent seas

Question 9

Mach number is significant in

Accepted Answer

motion of rocket

Answer

flow of highly viscous fluids . .

Answer

water waves breaking against a wall

Answer

motion of submarine completely in water

Question 10

Weber number will be an important consideration in the study of

Accepted Answer

surface wave generated in liquids

Answer

flow of water through a pipe line

Answer

steel balls dropping through oil

Answer

formation of spherical drops-rain drops

Dimensional & Model Analysis - 1 - Free MCQ Practice Test with solutions,

MCQ Practice Test & Solutions: Test: Dimensional & Model Analysis - 1 (10 Questions)

Dimensional analysis is useful in
Dimensional analysis deals with the process whereby all the important factors involved in a physical phenomenon are systematically arranged into dimensional group.

The principle of dimensional homogenity implies that

A 1 : 20 model of a spillw ay dissipated 0.25 hp. The corresponding prototype horsepower dissipated will, be

Which of the following is not a dimensionless number?

Dynamic similarity between model and prototype implies that

Principles of similitude form the basis of

Reynolds model law is applicable for

The Froude’s model law would not be applicable for the analysis of

Mach number is significant in

Weber number will be an important consideration in the study of

Fluid Mechanics for Mechanical Engineering

Fluid Mechanics for Mechanical Engineering

Top Courses for Mechanical Engineering

About this Mechanical Engineering Practice Test

Explore more Mechanical Engineering Study Resources

Dimensional & Model Analysis - 1 - Free MCQ Practice Test with solutions,

MCQ Practice Test & Solutions: Test: Dimensional & Model Analysis - 1 (10 Questions)

Dimensional analysis is useful inDimensional analysis deals with the process whereby all the important factors involved in a physical phenomenon are systematically arranged into dimensional group.

The principle of dimensional homogenity implies that

A 1 : 20 model of a spillw ay dissipated 0.25 hp. The corresponding prototype horsepower dissipated will, be

Which of the following is not a dimensionless number?

Dynamic similarity between model and prototype implies that

Principles of similitude form the basis of

Reynolds model law is applicable for

The Froude’s model law would not be applicable for the analysis of

Mach number is significant in

Weber number will be an important consideration in the study of

Fluid Mechanics for Mechanical Engineering

Fluid Mechanics for Mechanical Engineering

Top Courses for Mechanical Engineering

About this Mechanical Engineering Practice Test

Explore more Mechanical Engineering Study Resources

Dimensional analysis is useful in
Dimensional analysis deals with the process whereby all the important factors involved in a physical phenomenon are systematically arranged into dimensional group.