A female non-swimmer is having difficulty floating. Which of the following would you suggest (based on the explanations provided) to help the swimmer float on her back in a relatively horizontal position? You would have the swimmer: Question 12Answera.breathe out deeply and then move her arms above her head so that her centre of gravity and centre of buoyancy lie in the same vertical lineb.breathe out deeply and then move her arms above her head so that her centre of gravity and centre of buoyancy line in the same horizontal linec.breathe in as deeply as possible and then move her arms above her head so that her centre of gravity and centre of buoyancy lie in the same plane as her moment of inertiad.breathe in deeply and then move her arms above her head so that her centre of gravity and centre of buoyancy lie in the same horizontal line e.breathe in deeply and then move her arms above her head so that her centre of gravity and centre of buoyancy lie in the same vertical line

A swimmer is towed through the water firstly while lying in a prone position on the water surface, then in a prone position but submerged under the water surface (assume the swimmer maintains the same horizontal position and is towed at the same speed in both situations). The person towing the swimmer would usually need to apply the greatest force to move the swimmer through the water in which situation:Question 17Answera.the prone position on the water surface and pulled quickly because, in this position, the swimmer has a higher wave drag than when submergedb.the prone position on the water surface because in this position, the swimmer has a higher surface area exposed to two types of fluid than when submerged, which increases form dragc.the submerged prone position and pulled quickly because, in this position, the swimmer has a less streamlined body position compared to when on the water surface, which increases form dragd.the submerged prone position and pulled quickly because, in this position, the swimmer has a higher surface area exposed to the flow compared to when on the water surface, which increases surface drage.the same force would be applied to the swimmer in a prone position on the water surface and when submerged to move them at the same velocity through the water. This is because there is the same amount of form drag in both situations.

Which of the following should you do if you were caught in a fast-flowing river?Remain calm and swim underwaterRemain calm and swim against the currentRemain calm and try to float feet first in a half-sitting positionAll of the above

A passive drowning victim isn't moving and will be floating face down on the bottom or near the surface of the water.Group of answer choicesTrueFalse

A vessel freely floating in the water will behave as if all of its weight is acting downward through a point called:Select the correct response:center of gravitymetacentercenter of flotationcenter of buoyancy

Which of the following should you do when performing survival swimming?Adopt the Heat Escape Lessening Posture (H.E.L.P.) or huddle positionRemain calm, breathe regularly and swim with slow relaxed strokesChange position and stroke to save eneregy and avoid overusing your musclesAll of the above