Explore topic-wise MCQs in Fluid Mechanics.

This section includes 3 Mcqs, each offering curated multiple-choice questions to sharpen your Fluid Mechanics knowledge and support exam preparation. Choose a topic below to get started.

1.

A water drop of diameter 1 cm breaks into 1000 similar droplets of same diameter. What will be the gain or loss in the surface energy? (Take surface tension as 0.075 N/m)

A. gain of 0.424 mJ
B. gain of 0.212 mJ
C. loss of 0.212 mJ
D. loss of 0.424 mJ
Answer» C. loss of 0.212 mJ
Discussion
2.

If a glass tube of 10 mm diameter is immersed in water, what will be the rise or fall in capillary?
(Take surface tension = 0.075 N/m, g = 10 m/s2 and angle of contact = 0)

A. 0.75
B. 1.5
C. 3
D. 6
Answer» D. 6
Discussion
3.

The ratio of the surface tension S and density of liquid 1 and 2 are 1:2 and 1:4 respectively. Equal amount of the two liquids is poured into two identical tubes. what will be the ratio of the rise in the liquid level in the two tubes? (Assume the angle of contact to be same)

A. 1:2
B. 2:1
C. 8:1
D. 1:8
Answer» C. 8:1
Discussion