padi IDC theory – SCUBA equipment

Q9
The difference between “J” and “K” valve is
d)   A “J” valve is a reserve system, “K” valve is a simple on / off calve

Q10
A burst disc is designed to_____ and can be found on
a)    Reduce the possibility that an over-pressurised tank will explode / SPG
b)   Reduce the possibility that an over-pressurised BCD will explode / Inflator hose
c)    Reduce the possibility that an over-pressurised tank will explode / Tank
d)   Reduce the possibility that an over-pressurised regulator will explode / First stage