A regulator _________ is the part that connects to your scuba cylinder and a regulator _________ is the part you place in your mouth and use to breath.

Question

alternate air source / first stage
second stage/first stage
first stage/second stage
low pressure inflator/second stage

Answer 1

first stage/second stage

Answer 2

When I look at things underwater they often seem _________ than they look on the surface.
larger and/or nearer
larger and/or further away
smaller and/or further away
smaller and/or nearer

Answer 3

smaller and/or further away

Answer 4

If I work too hard and find it difficult to breathe underwater, I should
inflate my BCD.
stop all activity and rest, holding on to something for support if possible.
swim immediately to my buddy and signal for help.
do a controlled emergency swimming ascent (CESA – swimming up to the surface saying the ah-h-h-h sound).

Answer 5

stop all activity and rest, holding on to something for support if possible.

Answer 6

I know I am properly weighted for diving if I
float at neck level with my BCD about half full while I am holding a normal breath of air.
sink slowly holding a normal breath of air and with an empty BCD.
float at eye level while holding a normal breath of air and with an empty BCD.
sink easily with a partially filled BCD.

Answer 7

sink slowly holding a normal breath of air and with an empty BCD.

Answer 8

When diving at an altitude above 300 metres/1000 feet
I do not need to follow special procedures.
I can’t use my dive computer.
I do not need to follow special procedures, but my computer may need to be set for the altitude.
I need to follow special procedures and may need to set my computer for the altitude.

Answer 9

I need to follow special procedures and may need to set my computer for the altitude.