# Governing Principles of Hydraulic System - 2 - MCQs and Answers

## Governing Principles of Hydraulic System – 2 – MCQs and Answers

1. Which factor helps in obtaining high speed of the piston rod in the hydraulic system?

a. decreased friction
b. pump capacity
c. increased flow rate
d. all the above

2. During any operation in hydraulic system, oil prefers the path of

a. least resistance
b. maximum resistance
c. both a and b
d. none of the above

3. In a hydraulic circuit a pump is provided with two outlet paths, one where load is attached and other to the reservoir. Which path will the oil choose to flow first?

a. oil will flow to the path where load is attached
b. oil will flow back to the reservoir first
c. oil will flow through both the paths simultaneously
d. none of the above

ANSWER: b. oil will flow back to the reservoir first

4. Pressure applied on a fluid in a container is equally distributed in all directions and acts with

a. equal force on equal areas parallelly
b. equal force on different areas and at right angles
c. equal force on equal areas and at right angles
d. none of the above

ANSWER: c. equal force on equal areas and at right angles

5. Which law explains the behavior of hydraulic fluids under pressure?

a. Charles's law
b. Newtons law
c. Pascal's law
d. None of the above

6. Flow of oil in a pipe takes place due to

a. balanced forces
b. unbalanced forces
c. both balanced and unbalanced forces
d. none of the above

7. Pressure drop in pipes, occurs due to

a. frictional resistance