MK 2(G) is an acoustic sweep known as what?

MK 2(G) is an acoustic sweep known as what?

• A. Rattle bars
• B. Whistle cords
• C. Bubble curtains
• D. Siren nets

Answer: (A)

The MK 2(G) acoustic sweep is produced by a rattle bar assembly, which creates a broad, sweeping noise as the device is towed. The metal bars rattle or strike against each other, generating a wide range of frequencies that travel through the water. This broad-band signal is what the acoustic sweep is designed to produce, making it the best answer because the term “rattle bars” directly describes the mechanism behind that sweep. Other options describe different noise or barrier devices that don’t produce the characteristic broad-frequency sweep used in this context.

The MK 2(G) acoustic sweep is produced by a rattle bar assembly, which creates a broad, sweeping noise as the device is towed. The metal bars rattle or strike against each other, generating a wide range of frequencies that travel through the water. This broad-band signal is what the acoustic sweep is designed to produce, making it the best answer because the term “rattle bars” directly describes the mechanism behind that sweep. Other options describe different noise or barrier devices that don’t produce the characteristic broad-frequency sweep used in this context.