Aux 1 Unit 7 Q9

1 / 10

What advantage does the high power-to-weight ratio of hydraulic systems provide?

B) Hydraulic systems can deliver a lot of power in a relatively compact and lightweight package.

D) Hydraulic systems have a slower response time due to their weight.

A) Hydraulic systems require larger, heavier components to operate.

C) Hydraulic systems are less efficient than pneumatic systems.

2 / 10

Why is the availability of air considered an advantage for pneumatic systems?

D) Air requires complex processing before it can be used.

A) Air is abundant and readily available, reducing the need for specialized storage.

B) Air is denser than hydraulic fluid, providing more power.

C) Air is only available in specific locations.

3 / 10

Why is the ability to maintain constant force and speed considered an advantage of hydraulic systems?

B) Hydraulic systems can maintain constant force and speed regardless of load variations.

D) Hydraulic systems require frequent adjustments to maintain performance.

C) Hydraulic systems are less efficient at maintaining constant force and speed.

A) Hydraulic systems are affected by changes in pressure and temperature.

4 / 10

What is one major advantage of using pneumatics in control systems?

D) Pneumatic systems have a higher energy density than hydraulic systems.

B) Pneumatic systems are less likely to cause contamination since air is clean and does not pose a spill risk.

A) Pneumatic systems are quieter than other types of systems.

C) Pneumatic systems are less expensive to operate because they do not require any energy input.

5 / 10

What is an advantage of the energy efficiency of hydraulic systems?

A) Hydraulic systems have low energy efficiency due to fluid leaks.

D) Hydraulic systems have no energy storage capability.

B) Hydraulic systems can store energy in hydraulic accumulators, allowing for efficient energy use and recovery.

C) Hydraulic systems waste more energy compared to pneumatic systems.

6 / 10

What is an advantage of the speed of response in pneumatic systems?

C) Pneumatic systems require more time to start up.

A) Pneumatic systems have a slower response time than other systems.

B) Pneumatic systems can achieve rapid movement and fast response times due to the low inertia of air.

D) Pneumatic systems have a delayed reaction to control inputs.

7 / 10

Why is simplicity and ease of maintenance considered an advantage of pneumatic systems?

A) Pneumatic systems are more complex and harder to maintain.

C) Pneumatic systems require specialized tools for maintenance.

B) Pneumatic systems have fewer components and are less prone to wear and tear, making them easier to maintain.

D) Pneumatic systems have more moving parts than hydraulic systems.

8 / 10

What is one major advantage of using hydraulics in control systems?

A) Hydraulic systems are more likely to cause contamination due to fluid leaks.

D) Hydraulic systems require less maintenance than pneumatic systems.

B) Hydraulic systems can generate very high forces and torque due to the incompressibility of fluids.

C) Hydraulic systems are quieter than pneumatic systems.

9 / 10

How does the compressibility of air benefit pneumatic systems?

B) Compressibility of air leads to higher system pressures.

D) Compressibility of air decreases the efficiency of the system.

A) Compressibility of air allows for the storage of energy in smaller volumes, providing an effective means for energy absorption and cushioning.

C) Compressibility of air makes pneumatic systems more complex.

10 / 10

How does the incompressibility of hydraulic fluid benefit control systems?

B) Incompressibility of hydraulic fluid ensures smooth and precise control with minimal fluid compressibility effects.

A) Incompressibility of hydraulic fluid leads to erratic system behavior.

D) Incompressibility of hydraulic fluid increases the system's temperature.

B) Incompressibility of hydraulic fluid ensures smooth and precise control with minimal fluid compressibility effects.

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