Scuba Diving Scuba Diving Equipment 2

Question 1

What is a dive knife primarily used for in scuba diving?

Accepted Answer

Cutting entangling lines or nets

Answer

A dive knife is a safety tool primarily carried to cut through fishing line, kelp, or nets if a diver becomes entangled.

Question 2

Which type of fin style allows divers to wear thick booties and provides more thrust?

Accepted Answer

Open-heel fins

Answer

Open-heel fins have an adjustable strap and a larger foot pocket, making them compatible with thick neoprene booties for cold water.

Question 3

What is a dive computer's primary role?

Accepted Answer

Track depth and time to calculate no-decompression limits

Answer

A dive computer continuously monitors depth and bottom time to calculate remaining no-decompression limits and safe ascent profiles.

Question 4

What does a dry suit use to keep a diver warm?

Accepted Answer

Air or argon trapped inside the suit

Answer

A dry suit seals out water entirely and uses an insulating gas layer (air or argon) inside the suit to provide thermal protection.

Question 5

What is the purpose of a scuba mask purge valve?

Accepted Answer

Clear water from the mask without removing it

Answer

A purge valve on a mask allows divers to exhale through the nose to push out any water that has flooded the mask.

Scuba Diving Practice Test