Aux 1 Unit 10 Q3

1 / 10

What should be the first step if the CPP control system fails while the vessel is maneuvering in a port?

D) Wait for the system to reset automatically

B) Switch to manual control from a local control station near the propeller or engine room

A) Increase the vessel’s speed

C) Drop anchor immediately

2 / 10

If the control system of an electro/hydraulic CPP fails, how can the vessel's maneuvering be maintained?

C) By immediately shutting down the main engine

A) By reducing the vessel’s speed to idle

B) By manually overriding the pitch control using a mechanical or local hydraulic control system

D) By disconnecting the propeller from the shaft

3 / 10

If the CPP system fails and the vessel is in open waters with zero pitch, what alternative actions can be taken to maintain safety?

B) Adjust the vessel's ballast to improve stability while awaiting assistance

C) Disengage the propeller

D) Speed up the vessel’s auxiliary systems

A) Increase the ship’s draft

4 / 10

Why is it important to notify maritime authorities if the CPP system fails and the vessel loses propulsion?

D) To deactivate the vessel’s navigation systems

A) To increase the vessel's insurance coverage

C) To reduce the vessel's operational costs

B) To ensure that other vessels in the area are aware of the situation, and to arrange for assistance, such as towage, if necessary

5 / 10

What is a common feature in CPP systems that allows for continued operation in the event of a control system failure?

C) A local manual control system for pitch adjustment

D) An emergency anchor deployment system

B) A backup hydraulic pump

A) An auxiliary propeller

6 / 10

What should the crew do if the manual override to adjust the pitch fails after a hydraulic failure in a CPP system?

A) Drift until help arrives

B) Consider deploying the anchor and notify the appropriate maritime authorities while preparing for potential towage

C) Increase engine RPM to create some propulsion

D) Use the vessel’s auxiliary engines for propulsion

7 / 10

How does manual control of the CPP assist in maintaining maneuverability when the control system fails?

C) It shuts down the propeller to avoid damage.

A) It locks the propeller in a fixed position.

D) It disengages the hydraulic system.

B) It allows the crew to directly set the pitch of the propeller, thereby controlling thrust and vessel direction.

8 / 10

What is the main risk associated with a hydraulic system failure in a CPP that results in zero pitch while the vessel is en route?

D) Reduction in vessel speed

A) Overheating of the engine

B) Loss of propulsion, leading to potential drift, collision, or grounding

C) Increased fuel consumption

9 / 10

Why is it critical to maintain the ability to adjust the propeller pitch manually if the control system fails?

A) To increase the vessel’s speed

C) To decrease fuel consumption

B) To ensure the vessel can still be safely navigated and maneuvered, particularly in tight or congested areas

D) To prevent the propeller from overheating

10 / 10

If the hydraulic system irreparably fails and the CPP blades assume zero pitch while en route, what is the first action that should be taken?

C) Shut down the main engine

A) Increase engine RPM to full speed

D) Engage the bow thruster

B) Attempt to manually override the pitch to a positive or negative angle using any available emergency or manual control

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