Relative wind - Study guides, Class notes & Summaries

Firefighter 1 Wildland Exam (New 2024/ 2025 Update) Questions and Verified Answers| 100% Correct | A Grade QUESTION Increased rates of spread should be anticipated due to surface wind channeling when fires cross: A. Road B. Rivers C. Saddles D. All of the above E. None of the above Answer: C. Saddles QUESTION Why do a very high percentage of fatal fires occur in light fuels? A. Firefighters more complacent B. Rate of spread can increase dramatically with...

What is the main reason for assuming the HELP position when you are stranded in the water? - ANSWER-reduces heat loss What is the important safety information found on a boat's capacity plate? - ANSWER-maximum weight and/or number of people the boat can carry safely What is the best way to avoid overloading your boat? - ANSWER-Don't exceed the limits listed on the capacity plate. What should you leave with a friend or relative before a long outing on the water? - ANSWER-float plan ...

ASA 101-Practice test with Complete Solutions How do you know when to adjust the sails while sailing? Sail adjustments should be made based on changes in wind direction, wind strength, and the desired speed and direction of the boat. What is a "no-go zone" in sailing, and how does it affect navigation? The no-go zone is the area directly into the wind, usually around 45 degrees on either side, where a sailboat cannot sail effectively, requiring sailors to tack or jibe to nav...

ASA 101 Latest Version with Complete Solutions What is the function of a mainsail on a sailboat? The mainsail is the primary sail that captures wind and propels the boat forward, providing most of the boat's power under sail. How does a sailor determine the best point of sail for a given wind direction? A sailor can determine the best point of sail by assessing the wind direction relative to the boat’s heading and choosing an angle that maximizes efficiency and speed. Wh...

ASA 101, Basic Keelboat Sailing Questions and Answers Already Passed What is the difference between true wind and apparent wind? True wind is the wind as it is experienced at a stationary point, while apparent wind is the wind felt on a moving boat, resulting from the combination of true wind and the boat's motion. How does a sailboat's rigging affect its performance? The rigging helps control the shape and tension of the sails, influencing how effectively they capture wind an...

ASA 101 Latest Version with Certified Solutions How do you determine the wind direction before setting sail? You can determine wind direction by observing the water surface, noting the movement of flags or telltales, or using a wind vane if available. What is the function of the boom on a sailboat? The boom is used to control the angle of the mainsail relative to the wind, allowing for better sail shape and performance. What is the term for the distance a boat moves forward i...

Define Wien's Law - The hotter an object, the shorter the wavelength at maximum emission. (The hotter the object the brighter) After a cold front passes what happens to dew point? - it drops, as cold air is typically dry Centripetal force wind - right angles to the wind, in towards the center of curvature ex. hurricanes Convection is the process that? - involves mixing in a fluid Coriolis effect - The effect of Earth's rotation on the direction of winds and currents. Define a category fi...

Airfoil - ANSWER A structure or body which produces a useful reaction to air movement. Chord Line - ANSWER An imaginary straight line from the leading edge to the trailing edge of an airfoil. Relative Wind - ANSWER The wind felt by an airfoil (Parallel and in the opposite direction to the flight path of the airfoil). Angle of Attack - ANSWER The angle between the chord line of the airfoil and the relative wind. Angle of Incidence - ANSWER The angle at which a wing is attached to the ...

ATC Basics Ch 2 Exam Questions & Answers 2024/2025 "The internal pressure of a fluid decreases at point where the speed of the fluid increases" is part of what principle A. Bernoulli's Principle B. Newton's law of motion C. Hindenberg's Theory - ANSWERSA. Bernoulli's Principle What is the primary source of lift? - ANSWERSBernoulli's Principle What is the secondary source of lift? - ANSWERSNewton's third law Describe Newton's third law. - ANSWERSUpward force generated by...

ASA 101 - Sailing Made Easy - Chapter 1 100% Correct What is the primary purpose of a sail in sailing? The primary purpose of a sail is to harness the wind's energy to propel the boat forward. Define "leeway" in the context of sailing. Leeway refers to the sideways drift of a boat caused by the wind and current, affecting its course and position. What is meant by "tacking" when sailing? Tacking is the maneuver of turning the bow of the boat through the wind to c...