The element visible in the picture, called a nut, is a part of a ...

door lock

tap

bicycle hub

crossbow

Nut is a rolling cylindrical pawl. It has a perpendicular centre slot for the bolt, and an intersecting axial slot for the string, along with a lower face or slot against which the internal trigger sits.

Ninjai

wikipedia → Crossbow

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Weapons quiz Technology quiz

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Answers by country

the Netherlands

36%

63%

Greece

10%

40%

50%

Poland

24%

17%

49%

11664

the United Kingdom

28%

12%

20%

39%

the United States

20%

14%

25%

39%

Germany

16%

20%

30%

34%

Republic of Ireland

18%

31%

India

36%

26%

Which country was the first to use military night vision devices?

What was planned by the Nazis as V-3 super-weapon?

rocket missiles on U-boats

a multi-charge gun

chemical weapon launcher

long range laser weapon

What is the active component of pepper spray?

A stick with a perpendicular handle attached a third of the way down the length of the stick is called a ...