Aux 1 Unit 9 Q2

1 / 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.

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

C) It reduces the size of the rams.

A) It eliminates the need for isolation valves.

2 / 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

C) The ability to reduce the vessel's draft

A) The ability to increase the vessel's speed

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

3 / 10

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

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

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

D) By using a single, larger ram for redundancy

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

4 / 10

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

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

A) The vessel's speed

C) The temperature of the hydraulic fluid

D) The vessel's draft

5 / 10

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

D) It reduces the pressure in the system.

C) It increases the temperature of the hydraulic fluid.

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

A) It reduces the need for hydraulic fluid.

6 / 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

B) An isolation valve

C) A flow meter

A) A pressure gauge

7 / 10

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

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

A) It increases hydraulic pressure.

C) It reduces the need for hydraulic fluid.

D) It monitors the temperature of the rudder.

8 / 10

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

D) To monitor the pressure in each circuit

C) To increase the flow rate of hydraulic fluid

A) To decrease hydraulic fluid temperature

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

9 / 10

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

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

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

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

D) It reduces the weight of the hydraulic system.

10 / 10

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

C) To monitor the temperature of the hydraulic fluid

A) To increase the flow of hydraulic fluid

D) To reduce the hydraulic pressure

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

Your score is