SSI open water final exam questions with correct answers

Which of the statements concerning sound transmission underwater is incorrect? -Sound will travel farther underwater then in air -Divers find it difficult to locate the direction of a sound producing source -Divers find it easy to talk to each other directly through water -Sound travels four times faster underwater than in air - Ans - -Divers find it easy to talk to each other directly through water The absolute pressure expressed in terms of atmospheres absolute at 33 feet in sea water is: -2 ata -1 ata - 4 ata - 3 ata - Ans - 2 ata The condition in which certain colors are diminished as depth increases is called: -Refraction -Turbidity -Diffusion -Absorption - Ans - Absorption Earplugs -Aid equalization of the middle of the ear - Protect against cold -Should never be worn while diving -Protect ears from squeeze - Ans - -Should never be worn