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What are a schnorchel used in submarines for?

to take fresh air into the boats

to neutralize odors

ventilation of a submerged ship

wastewater disposal

A submarine snorkel is a device which allows a submarine to operate submerged while still taking in air from above the surface. British Royal Navy personnel often refer to it as the snort. A concept devised by Dutch engineers, it was widely used on German U-boats during the last year of World War II and known to them as a schnorchel.

ShadowMaster

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Dorothy wikipedia → Submarine snorkel

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Answers by country

Australia

80%

0%

20%

0%

10

the Netherlands

70%

5%

15%

10%

20

Poland

47%

7%

24%

19%

2724

Germany

46%

6%

25%

20%

64

the United States

43%

7%

24%

24%

53

the United Kingdom

43%

2%

37%

13%

37

Greece

33%

8%

41%

16%

12

Canada

30%

7%

30%

30%

13

Republic of Ireland

25%

12%

37%

25%

16

Egypt

18%

9%

9%

63%

11

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Which Queen was called the Grandmother of Europe?

Marie Antoinette