Trivia questions and answers, drawn fresh from the well

• Intermediate Intermediate difficulty.
• Submarines

Which Indian submarine became the country’s first nuclear-powered ballistic-missile submarine?

Answer

INS Arihant

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• Easy Easy difficulty.
• Submarines

Which German submarine sank itself in 1945 after a malfunctioning high-pressure toilet allowed seawater into the boat?

Answer

U-1206

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• Intermediate Intermediate difficulty.
• Submarines

Which submarine sank U-864 off Norway in 1945 in the first successful submerged submarine-versus-submarine attack?

Answer

HMS Venturer

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• Hard Hard difficulty.
• Submarines

Which submarine is the only preserved German Type XXI U-boat and is displayed at Bremerhaven?

Answer

Wilhelm Bauer

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• Easy Easy difficulty.
• Submarines

Which U.S. Navy submarine class was the most numerous nuclear-powered attack-submarine class, with 62 boats built?

Answer

Los Angeles class

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• Intermediate Intermediate difficulty.
• Submarines

Which submarine became the first to use an operational air-independent propulsion system based on Stirling engines?

Answer

HMS Gotland

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• Intermediate Intermediate difficulty.
• Submarines

Which submarine class introduced Germany’s late-World War II design intended for sustained high-speed underwater travel?

Answer

Type XXI

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• Intermediate Intermediate difficulty.
• Submarines

What type of submarine propulsion uses a fuel cell to generate electricity without burning fuel in an engine?

Answer

Air-independent propulsion

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• Easy Easy difficulty.
• Submarines

What device lets a surfaced or shallow-running submarine receive air from above while keeping its diesel engines operating?

Answer

Snorkel

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• Easy Easy difficulty.
• Submarines

What underwater detection system uses sound to locate and track objects around a submarine?

Answer

Sonar

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• Easy Easy difficulty.
• Submarines

In submarine engineering, what are the smaller tanks used to adjust a vessel’s fore-and-aft balance called?

Answer

Trim tanks

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• Easy Easy difficulty.
• Submarines

In submarine design, what tank is flooded or emptied to control whether the vessel rises or dives?

Answer

Ballast tank

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