SDI Chapter three: Scuba Equipment Questions and Answers with complete solution
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Course
SDI Chapter three: Scuba Equipment
Institution
SDI Chapter Three: Scuba Equipment
How do you know if a mask fits correctly? - ️️First, you need to press the mask
against your face without using the strap Then make sure there's no hair under the skirt
of the mask while inhaling slightly. If the mask tightens against your face and doesn't fall
off, it's a good fit.
Describ...
How do you know if a mask fits correctly? - ✔️✔️First, you need to press the mask
against your face without using the strap Then make sure there's no hair under the skirt
of the mask while inhaling slightly. If the mask tightens against your face and doesn't fall
off, it's a good fit.
Describe the function of a scuba regulator first stage and second stage - ✔️✔️The first
stage attaches to tank and reduces the high pressure air to an intermediate pressure for
breathing (attaches to the tank valve). The second stage delivers air at ambient
pressure directly to the diver(has the mouthpiece and purge button)
Name at least one visual and one audible rescue signaling device - ✔️✔️Your safety
sausage, or a whistle/horn.
What extra attire can enhance a diver's warmth when worn with a wet or dry suit? -
✔️✔️Some extra attire diver's can use are boots, hoods, and gloves.
Name two functions of wet suit boots. - ✔️✔️Two functions are protection and for
warmth.
Define maximum dive depth. - ✔️✔️It is the deepest point reached during a dive
Define no-stop time - ✔️✔️It is the amount of time remaining at any point during a dive
before incurring a mandatory decompression stop.
What are two ways a PDC may alert a diver that he or she are ascending too fast? -
✔️✔️The PDC does visual alarms and audible alarms to warn drivers.
How do you determine the time limit for a repetitive dive from a PDC? - ✔️✔️By using
the Surface Interval Time feature on your PDC.
What are two types of weight systems? - ✔️✔️The weight belt and the weight-
integrated BCD.
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