Question

Match List I (Non-dimensional number) with List II (It is the ratio of):

LIST I	LIST II
A. Reynold’s Number	III. Inertia force to viscous force
B. Mach Number	I. Inertia force to elastic force
C. Froude’s Number	II. Inertia force to gravity force
D. Weber’s Number	IV. Inertia force to surface tension force

Choose the correct answer from the options given below:

• A. (A)- (III), (B)- (I), (C)- (II), (D)- (IV)
• B. (A)- (I), (B)- (III), (C)- (II), (D)- (IV)
• C. (A)- (II), (B)- (I), (C)- (III), (D)- (IV)
• D. (A)- (IV), (B)- (II), (C)- (I), (D)- (III)

Hint:

Each non-dimensional number has its specific use in fluid mechanics representing the ratio of inertial forces to other forces

Answer 1

The Correct Option is A

The non-dimensional numbers and their force ratios are defined as: Reynold’s Number: Inertia force to viscous force; Mach Number: Inertia force to gravity force; Froude’s Number: Inertia force to surface tension force; Weber’s Number: Inertia force to elastic force.