Question 23Electricity & Electronics - 1st Asst/Chief

A) 6 is the correct answer. The symbol for a normally closed flow switch is a symbol with two parallel lines and an arrow pointing down, which represents the default closed position of the switch. This matches the symbol labeled 6 in the illustration EL-0059. The other options are incorrect because they represent different electrical components, such as a transformer (7), a normally open switch (11), or a fuse (14), which do not accurately depict the symbol for a normally closed flow switch.