CHIEF ENGINEER Unit 15 Q4

1 / 10

Which of the following is a commonly used method to test the watertight integrity of a vessel's hull?

C) Checking the vessel’s weight

A) Visual inspection from shore

D) Observing crew operations

B) Ultrasonic testing

2 / 10

Which method would best test a compartment’s watertight integrity by directly assessing its seal?

D) Painting the compartment

B) Inspecting from a distance

C) Weighing the compartment

A) Using water pressure testing

3 / 10

What is an advantage of using vacuum testing to check a hull’s watertight integrity?

B) It can detect leaks without fully immersing the hull

D) It requires no specialized equipment

A) It requires no access to the hull exterior

C) It is only used for aesthetic purposes

4 / 10

What is the purpose of using vacuum testing for the hull?

A) To measure the speed of the vessel

C) To increase fuel efficiency

B) To ensure an airtight seal around openings

D) To repaint the hull

5 / 10

Which of the following is a primary reason for dry-docking a vessel?

B) To remove marine growth and clean the hull

C) To provide additional crew training

A) To increase the vessel’s cargo capacity

D) To re-paint the interior cabins

6 / 10

Why is ultrasonic testing favored for checking watertight integrity in certain areas of the hull?

A) It is non-destructive and can reveal internal cracks

C) It measures the weight of the hull

B) It paints the hull

D) It fills the hull with water

7 / 10

Why is hull inspection and repair a common reason for dry-docking?

A) To change the vessel’s weight

D) To adjust cargo storage areas

B) To improve crew accommodation

C) To check for damage and perform maintenance on areas below the waterline

8 / 10

In which situation is water pressure testing most commonly used for hull integrity?

B) When ultrasonic testing fails

D) When painting is required

A) When visual inspection is enough

C) When compartments need to be verified under actual service conditions

9 / 10

Which of the following maintenance tasks is typically performed during a vessel’s dry-docking?

C) Replacing all crew members

D) Rearranging passenger seating

A) Installation of new electronic systems

B) Repainting and recoating of the hull

10 / 10

What is a significant reason for conducting an underwater inspection of a vessel during dry-docking?

B) To adjust the engine’s power output

D) To enhance the interior design of cabins

A) To increase the vessel’s speed

C) To inspect and maintain the vessel’s underwater fittings, such as propellers and sea chests

Your score is