Aux 2 Unit 2 Quiz 2

Aux 2 Unit 3 Q1

1 / 10

What is the fundamental operating principle of a hydraulic system?

C) It converts chemical energy into thermal energy

B) It uses fluid under pressure to transmit and amplify force

A) It converts electrical energy into sound energy

D) It operates solely using air as the working medium

2 / 10

How does a pressure relief valve protect a hydraulic system?

B) It limits the maximum pressure to prevent damage

C) It diverts fluid to the actuator when the pressure is too low

A) It increases the fluid temperature

D) It serves as the main source of power

3 / 10

What happens to the hydraulic fluid after it leaves the actuator?

C) It stays in the actuator

A) It is released into the environment

B) It returns to the reservoir for reuse

D) It evaporates

4 / 10

What role does the pump play in a hydraulic system?

A) It cools down the hydraulic fluid

B) It generates pressure to move the fluid through the system

D) It stores the fluid for later use

C) It converts mechanical energy into electrical energy

5 / 10

What is the primary function of an actuator in a hydraulic system?

B) To convert hydraulic energy into mechanical energy

A) To store hydraulic fluid

C) To mix the fluid with additives

D) To cool the system

6 / 10

Which of the following is NOT a main component of a hydraulic system?

A) Pump

C) Battery

B) Actuator

D) Reservoir

7 / 10

Why is hydraulic oil preferred over water in hydraulic systems?

B) Hydraulic oil provides better lubrication and is less compressible

D) Water cannot be pressurized

C) Water evaporates quickly under pressure

A) Water is too expensive

8 / 10

What is the function of a directional control valve in a hydraulic system?

C) To direct the flow of hydraulic fluid to various components

A) To filter contaminants from the fluid

D) To maintain a constant temperature in the system

B) To regulate the speed of fluid flow

9 / 10

What type of fluid is typically used in hydraulic systems?

A) Water with high salt content

D) Compressed air

B) Special hydraulic oil or synthetic fluid

C) Gaseous carbon dioxide

10 / 10

What type of actuator is used for linear motion in a hydraulic system?

B) Hydraulic cylinder

D) Centrifugal pump

C) Gear pump

A) Hydraulic motor

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