Nav 2 Midterm Quiz 1

What symbol on a nautical chart most specifically indicates a lighthouse with a light?

• Star with a dot in the center

• Circle with radiating lines

• Triangle with a cross inside

• Square with a diagonal slash

The abbreviation "Fl (3) 10s" on a navigational aid refers to which light characteristic?

• Single flashing light every 10 seconds

• A group of three flashes, repeating every 10 seconds

• A fixed light visible for 10 seconds

• Flashing light combined with Morse code signals

What do the black-and-yellow horizontal stripes of a North Cardinal Mark signify?

• Safe navigation to the east and west

• A hazard to the north of the mark

• Safe navigation to the north of the mark

• A mid-channel location

Which statement accurately describes the function of a Safe Water Mark?

• It acts as a lateral marker for port-hand navigation.

• It indicates the transition from deep to shallow water.

• It is a central navigation aid, marking safe water all around it.

• It provides specific depth readings for nearby areas.

The top mark of two black cones pointing upwards identifies which navigation feature?

• An isolated danger mark

• A cardinal mark indicating safe passage to the north

• A lateral mark for a port-side channel

• A special-purpose navigation buoy

When navigating around a South Cardinal Mark during low visibility, which action ensures safety?

• Use radar to confirm the mark and navigate northward.

• Maintain course directly south, ensuring a wide berth.

• Pass east or west while avoiding the northern sector of the mark.

• Approach the mark slowly from the south, stopping to verify its position.

How can Notices to Mariners enhance safe navigation when operating in unfamiliar waters?

• By detailing seasonal maritime conditions in the area

• By providing real-time updates on potential navigational risks

• By listing coordinates of all shipwrecks and obstructions

• By offering guidelines for compliance with international ship standards

In a practical scenario, how should contour lines on a nautical chart be interpreted to ensure safe passage?

• Align your course to avoid areas where contour lines are densely packed.

• Follow the shallowest depths indicated to avoid hidden obstructions.

• Use contour lines only for tidal calculations near landmasses.

• Relate the contours to latitudinal distances for precise positioning.

Which anchorage symbol on a modern electronic chart system might be color-coded to indicate its usage category?

• Anchor with "A" inside it

• Standard anchor symbol

• Anchor with a surrounding dashed circle

• Anchor enclosed in a solid square

A navigation aid flashes at a rate of 80 flashes per minute. What best describes its light characteristic?

• A quick flashing light visible continuously from all directions

• A very quick flashing light indicating immediate hazard

• A continuous group flashing light marking a special purpose

• An alternating light combining quick and long flashes