Online Boating Equipment & Maintenance Flashcards
7 cards from real OBS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Online Boating Equipment & Maintenance flashcards as text
What does it mean when a boat's engine overheats and the temperature warning alarm sounds?
Answer: Cooling water flow is restricted or lost, requiring immediate engine shutdown
An overheating alarm signals that the raw-water cooling system is not working properly; continuing to run the engine can cause serious and expensive damage.
What is the recommended minimum anchor line (scope) ratio in normal conditions?
Answer: 7:1 (seven feet of line per foot of depth)
A scope of 7:1 is the general minimum in normal conditions, meaning you let out 7 feet of anchor rode for every foot of water depth to allow the anchor to set properly.
Which navigation light must a motorboat under 65 feet display when underway at night?
Answer: A white masthead light, red port light, green starboard light, and white stern light
A power-driven vessel between 12 and 20 meters must display a white masthead light, red port (left) sidelight, green starboard (right) sidelight, and a white sternlight.
What should you do if you discover water in the bilge while underway?
Answer: Immediately run the bilge pump and identify the source of ingress
Finding water in the bilge requires immediately activating the bilge pump and locating the source of the leak before it worsens and threatens the vessel's safety.
What is the purpose of a boat's trim tabs?
Answer: To adjust the running angle of the hull for improved performance and fuel efficiency
Trim tabs are adjustable plates at the stern that alter the running angle (pitch) of the hull, improving speed, fuel economy, and ride comfort in varying load and sea conditions.
How should you test a carbon monoxide detector on your boat?
Answer: Press the test button according to the manufacturer's instructions
Carbon monoxide detectors should be tested using the manufacturer's test button, which verifies the alarm circuitry and sensor function without exposing occupants to the gas.
When towing a water skier, what additional safety equipment is required beyond normal boating requirements?
Answer: An observer in addition to the operator, or a wide-angle mirror
Most states require a dedicated observer (spotter) in addition to the boat operator, or an approved wide-angle rearview mirror, so the skier is always watched while the operator steers.