The Yellow Jack signal flag, is a plain yellow banner that was historically used to signify a vessel was, or might be, harboring a dangerous disease and needed to be quarantined. Later the flag came to mean the opposite, signaling: "My vessel is healthy and I request free pratique".

What does a yellow flag symbolize?

Yellow flag (contagion), historically displayed on ships to indicate the presence of disease or quarantine (obsolete); also used in some cities to mark a recent death in a neighborhood, regardless of cause. Racing flags, used in motor sports to indicate hazardous conditions.

What does flying a yellow flag mean?

Medical Definition of quarantine flag

: a yellow flag hoisted by all ships to request pratique on entering a harbor, by a ship to show that it has contagious or infectious disease aboard, or by a ship that has been quarantined. — called also yellow flag, yellow jack.

What do yellow flags mean in my yard?

YELLOW – Gas, Oil, Steam Petroleum or Gaseous Materials. ORANGE – Communication, Cable TV, Alarm or Signal Lines, Cables or Conduit.

What is a yellow quarantine flag?

quarantine flag in American English

noun. Nautical. a yellow flag, designating the letter Q in the International Code of Signals: flown by itself to signify that a ship has no disease on board and requests a pratique, or flown with another flag to signify that there is disease on board ship.

30 related questions found

What is a yellow flag in a relationship?

But have you ever wondered what 'yellow flags' mean in a relationship? Yellow flags are basically signs that tell you to be cautious or be on the lookout for any issues in your relationship or partner. While these may not be serious, they may hint you towards a bigger problem that's probably hiding in plain sight.

Why are there red and yellow flags in my yard?

For red flags, try to call your Electric Company. For orange flags, you could try to call your telephone or Cable TV company. For yellow flags, try to call your natural gas provider, and for green flags try to call your local sanitary sewer authority or DPW.

What do colored flags mean?

Question: What do the colors of the flag mean? Answer: According to custom and tradition, white signifies purity and innocence; red, hardiness and valor; and blue signifies vigilance, perseverance, and justice.

What does red spray paint on grass mean?

RED: Electric Power Lines, Cables, Conduit and Lighting Cables. YELLOW: Gas, Oil, Steam, Petroleum or Gaseous Materials. ORANGE: Communication, Alarm or Signal Lines, Cables or Conduits.

Is there a quarantine flag?

A visible warning to stay clear. There is no signal in the International Code of Signals for 'quarantine' (indeed the word 'quarantine' does not appear in the code).

What does yellow flag mean in Nascar?

YELLOW FLAG:

Brings the race to a slowed pace and indicates a caution period on-track due to a crash or debris that would impede the race from continuing under full-speed conditions. When the flag waves, the pace car enters the track and controls the field behind it.

What is a pink Utility flag mean?

Pink: Temporary survey markings. Purple: Reclaimed water, irrigation, and slurry lines. Red: Electric power lines, cables, conduit, and lightning cables. White: Proposed excavation.

What does orange on a flag mean?

Orange: Viewed as representation of courage and sacrifice.

What is a green American flag?

The thin green line is a symbol that is used to show support for federal law enforcement agents such as border patrol, park rangers, and conservation personnel. The thin green line is also used to show support for the men and women of our military.

Why is there a USIC truck in front of my house?

They are safely marking public utility lines buried on your property. You, a neighbor or a utility company have called #811 before a digging project, so that's why we're there!

What is green yellow red flag?

Senegal retained the green-yellow-red flag but substituted a green star for the kanaga. Green is seen as a symbol of hope and of the country's major religions, while yellow is for natural riches and the wealth derived from labour. Red recalls the independence struggle, life, and socialism.

What are 3 safe dating tips for a healthy relationship?

10 Tips for healthy relationships

  • Keep expectations realistic. No one can be everything we might want them to be. ...
  • Talk with each other. It can't be said enough: communication is essential to healthy relationships.
  • Be flexible. ...
  • Take care of yourself, too. ...
  • Be dependable. ...
  • Fight fair. ...
  • Be affirming. ...
  • Keep your life balanced.

What are dating red flags?

According to dating psychologist Madeleine Mason Roantree, a red flag can be defined as “something your partner does that indicates a lack of respect, integrity or interest towards the relationship”.

What is a blue utility flag?

Blue flags – Blue means water, irrigation or slurry. Usually this is drinking water. Damage this line and you could flood your home or find yourself without drinking water for a few days.

What does orange spray paint on road mean?

Orange: telecommunication, alarm or signal lines, cables or conduit. Yellow: natural gas, oil, steam, petroleum or other flammables. Green: sewers and drain lines.

What does a blue flag mean?

The "Thin Blue Line" flag, which resembles an American flag but has a blue stripe, is a sign of support for law enforcement but has also come to signal opposition to the racial justice movement and a symbol of white supremacy or support for the Blue Lives Matter cause.

What is NASCAR black flag?

The “passing flag,” signals slower cars to yield to faster with Diagonal traffic. Red Flag: Signals that the race stops immediately, regardless of position of cars on the track. Black Flag: Directs a driver to proceed to the pits on the next lap and to consult with race officials.

What does a black and yellow checkered flag mean?

"Lifeguards post flags along the beach to impart information. A yellow and black checkered flag divides the beach into zones: swimming, surfing, or boating. A red flag signifies "no swimming here". A yellow flag with a black dot means "swimming only" (no surf boards or boats here). A green flag means "all OK".