Aux 1 Unit 10 Q3

1 / 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?

A) Increase engine RPM to full speed

C) Shut down the main engine

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

D) Engage the bow thruster

2 / 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?

C) Disengage the propeller

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

A) Increase the ship’s draft

D) Speed up the vessel’s auxiliary systems

3 / 10

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

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

D) It disengages the hydraulic system.

A) It locks the propeller in a fixed position.

C) It shuts down the propeller to avoid damage.

4 / 10

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

A) An auxiliary propeller

D) An emergency anchor deployment system

C) A local manual control system for pitch adjustment

B) A backup hydraulic pump

5 / 10

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

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

A) To increase the vessel’s speed

6 / 10

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

C) Drop anchor immediately

D) Wait for the system to reset automatically

A) Increase the vessel’s speed

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

7 / 10

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

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

A) Drift until help arrives

D) Use the vessel’s auxiliary engines for propulsion

C) Increase engine RPM to create some propulsion

8 / 10

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

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

A) To increase the vessel's insurance coverage

C) To reduce the vessel's operational costs

D) To deactivate the vessel’s navigation systems

9 / 10

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

D) By disconnecting the propeller from the shaft

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

C) By immediately shutting down the main engine

A) By reducing the vessel’s speed to idle

10 / 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?

C) Increased fuel consumption

D) Reduction in vessel speed

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

A) Overheating of the engine

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