Aux 1 Unit 9 Q2

1 / 10

In a dual-circuit hydraulic system for a two-ram steering gear, what is the purpose of a cross-connection valve?

B) To allow fluid to flow between the two circuits in case of a failure in one circuit

C) To increase the flow rate of hydraulic fluid

A) To decrease hydraulic fluid temperature

D) To monitor the pressure in each circuit

2 / 10

How can a hydraulic system for a two-ram steering gear ensure that steerage is maintained during a hydraulic pipe failure?

B) By incorporating a dual, independent hydraulic circuit system, each capable of operating the steering gear independently

A) By having a single hydraulic circuit with a backup pump

C) By reducing the amount of hydraulic fluid in the system

D) By using a single, larger ram for redundancy

3 / 10

What should be regularly tested to ensure the reliability of a dual-circuit hydraulic system in a two-ram steering gear?

A) The vessel's speed

B) The emergency steering mode and the functionality of all isolation and cross-connection valves

D) The vessel's draft

C) The temperature of the hydraulic fluid

4 / 10

How does the use of two independent hydraulic pumps contribute to the reliability of a two-ram steering gear system?

A) It allows for the use of different types of hydraulic fluid.

C) It increases the overall hydraulic pressure in the system.

D) It reduces the weight of the hydraulic system.

B) It ensures that one pump can take over if the other fails, maintaining hydraulic pressure and steerage.

5 / 10

How does the use of feedback from a rudder position sensor enhance the operation of a two-ram steering gear system?

D) It monitors the temperature of the rudder.

C) It reduces the need for hydraulic fluid.

A) It increases hydraulic pressure.

B) It provides real-time data to adjust the hydraulic flow, ensuring accurate rudder positioning.

6 / 10

What is a primary design consideration for a hydraulic system used in a two-ram steering gear?

D) The ability to decrease hydraulic pressure under load

B) The ability to maintain steerage even in the event of hydraulic pipe failure

A) The ability to increase the vessel's speed

C) The ability to reduce the vessel's draft

7 / 10

What component is crucial in a two-ram steering gear hydraulic system to isolate a failed section of the hydraulic circuit?

D) A temperature sensor

C) A flow meter

A) A pressure gauge

B) An isolation valve

8 / 10

What advantage does an accumulator provide in the hydraulic system of a two-ram steering gear?

C) It increases the temperature of the hydraulic fluid.

A) It reduces the need for hydraulic fluid.

D) It reduces the pressure in the system.

B) It stores hydraulic energy to be used in case of a pump failure, ensuring temporary steerage.

9 / 10

What is the role of a non-return valve in the hydraulic system of a two-ram steering gear?

B) To prevent backflow of hydraulic fluid, ensuring that pressure is maintained in the active circuit

C) To monitor the temperature of the hydraulic fluid

D) To reduce the hydraulic pressure

A) To increase the flow of hydraulic fluid

10 / 10

What is a key benefit of using a variable displacement pump in the hydraulic system of a two-ram steering gear?

D) It increases the amount of hydraulic fluid required.

C) It reduces the size of the rams.

B) It allows for efficient control of hydraulic flow and pressure, optimizing steering response and energy consumption.

A) It eliminates the need for isolation valves.

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