Topic: Fluid Mechanics
List-I gives 4 dimensionless numbers and List-II gives the types of forces, which are one of the constituents describing the numbers. Match List I with List II and select the correct answer using the codes given below the lists:
List I
A. Euler number
B. Froude number
C. Reynolds number
D. Weber number
List II
1. Pressure force
2. Gravity force
3. Elastic tension
4. Surface tension
5. Viscous force
- A. A-2, B-3, C-4, D-5
- B. A-3, B-2, C-4, D-5
- C. A-1, B-2, C-5, D-4
- D. A-2, B-1, C-5, D-4
Answer: C. A-1, B-2, C-5, D-4
Explanation: Reynolds number = Inertia Force / Viscous Force. Froude number = Inertia Force / Gravity Force. Euler number = Inertia Force / Pressure Force. Weber number = Inertia Force / Surface Tension. Mach number = Inertia Force / Elastic Tension.