Aux 2 Unit 15 Quiz 4

Aux 2 Unit 15 Q4

1 / 10

What feature of watertight doors ensures that they can be opened manually during a power failure?

D) A key-operated switch

A) A digital code lock

C) A sliding handle

B) A manual handwheel or lever

2 / 10

What is a common operational feature of watertight doors on the weather deck?

A) They are manually operated only

B) They can be both manually and hydraulically operated

D) They have automatic locks

C) They are always open for ventilation

3 / 10

Watertight doors on the weather deck must comply with which type of regulations?

B) International safety and maritime regulations (e.g., SOLAS)

C) Electrical codes only

A) Fashion and design standards

D) Local building codes

4 / 10

Where are watertight doors commonly placed on a vessel?

B) At strategic points on the weather deck and between compartments

A) Only at the stern

C) On the bridge for easy access

D) Randomly throughout the vessel

5 / 10

What type of material is most commonly used for constructing watertight doors on the weather deck?

C) Wood

A) Lightweight plastic

B) Steel or high-strength aluminum alloy

D) Glass

6 / 10

Why are watertight doors typically reinforced with crossbars or ribs?

C) To make them lighter

B) To increase their strength and ability to withstand pressure from water

D) To provide a handle for opening

A) To make them look more aesthetic

7 / 10

What mechanism is used to ensure a watertight seal on these doors?

B) A rubber gasket combined with a compression handle

D) Hinges only

C) A sliding lock

A) A simple latch

8 / 10

What is the primary purpose of watertight doors on the weather deck?

A) To allow easy access to different parts of the ship

C) To prevent water ingress and maintain the vessel's watertight integrity during rough sea conditions

B) To provide ventilation

D) To reduce noise levels on the deck

9 / 10

Why is regular inspection and maintenance of watertight doors necessary?

B) To ensure the rubber gaskets remain flexible and the sealing mechanism functions properly

D) To remove rust only

C) To repaint them frequently

A) To keep them looking clean

10 / 10

Which feature is essential for the safe operation of watertight doors in emergencies?

D) A decorative panel

B) An audible alarm system and warning lights

A) A color-coded label

C) A keypad entry system

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