Prepare for the Water Survival 929 Test. Use flashcards, multiple choice questions, hints, and explanations. Get water safe!

Multiple Choice

What are the major types of shipboard davits?

Shipboard davits are grouped by how the boat is moved and lowered. The three main types you’ll encounter are gravity, mechanical, and radial. Gravity davits rely on the weight of the lifeboat to lower it once released, using simple hardware and no power. They’re robust and require minimal equipment, making them a common, dependable option for straightforward lowering. Mechanical davits use a winch or geared mechanism—manual or powered—to control the lift and descent. This provides precise, controllable lowering, which can be advantageous in rough seas or when careful handling is needed. Radial davits feature arms that swing out in a radial fashion, positioning the boat clear of the hull during lowering. This arrangement supports safe deployment on decks with restricted space or awkward layouts. The other options mix in a release method or a geometric configuration that isn’t considered a primary davit type in standard classifications—for example, a single-point release describes how the boat is released, not the davit mechanism itself, and quadrantal or sheath screw designs are less common as broad categories in typical training.

Shipboard davits are grouped by how the boat is moved and lowered. The three main types you’ll encounter are gravity, mechanical, and radial.

Gravity davits rely on the weight of the lifeboat to lower it once released, using simple hardware and no power. They’re robust and require minimal equipment, making them a common, dependable option for straightforward lowering.

Mechanical davits use a winch or geared mechanism—manual or powered—to control the lift and descent. This provides precise, controllable lowering, which can be advantageous in rough seas or when careful handling is needed.

Radial davits feature arms that swing out in a radial fashion, positioning the boat clear of the hull during lowering. This arrangement supports safe deployment on decks with restricted space or awkward layouts.

The other options mix in a release method or a geometric configuration that isn’t considered a primary davit type in standard classifications—for example, a single-point release describes how the boat is released, not the davit mechanism itself, and quadrantal or sheath screw designs are less common as broad categories in typical training.