Fluid Statics MCQ with answer and solution

Concept

Fluid statics is the study of fluids at rest.

Step-by-step solution

1. Fluid at rest means there is no motion. 2. The branch that studies fluids at rest is called fluid statics. 3. So the answer is D.

Explanation

Fluid mechanics has three main branches: statics, kinematics and dynamics. Fluid statics studies fluids at rest, for example pressure and hydrostatic forces. The other branches study fluids in motion.

Why the other options are wrong

A: Fluid mechanics is the whole subject, covering both rest and motion. B: Fluid dynamics studies motion together with the forces that cause it. C: Fluid kinematics studies motion only, without considering forces.

Shortcut

Static = at rest, so fluid at rest = fluid statics.

Common mistake

Choosing 'fluid mechanics' because it is the general name of the subject.