ATSC 113 Midterm 1 Exam Questions and Answers

ATSC 113 Midterm 1 Exam Questions and Answers What is the cloud ceiling? - Answer-Theheight of the lovest cloud base above gorund level BUT ONLY if the cloud cover is over half the sky - this means a 5 out of 8 - ceiling height can't be abover 20,000 ft How do you calculate cloud ceiling height? - Answer-- ceilometers - laser ceilometers - ceiling ballons - weather observer estimates (using markers) What is vertical visibility? - Answer-Visibility straight down - important for seeing runway or other aircrafts What is horizontal visibility? - Answer-Visibility straight ahead or out a window - important for VFR flying and landing planes What is slant visibility? - Answer-Visibility at a almost vertical angle - important for seeing runway or other aircrafts What is RVR? - Answer-Runway Visual Range - distance that a pilot cna see horizontally along a runway centerline What is VFR? VFC? - Answer-Visual Flight Rules - means flying mostly by looking out the window Visual Flight Conditions - name given to weather that is good enough to fly using VFR *whe cloud base is more than 3,000ft What is MVFR? - Answer-Marginal Visual Flight Rules - VFR is allowed but cloud base or visability is lower *when cloud base is between 1,000-3,000ft What is IFR? IFC? - Answer-Instrument Flight Rules - uses onborad systems or instructions by air traffic controllers to navigate Instrument Flight Conditions - name given to weather in which visibility is very poor *when cloud base is less than 1,000ft What is fog? - Answer-a cloud that touches the ground - common in cool, humid air How does fog form? - Answer-1. When water is added to unsaturated air 2. When unsaturated air is cooled to its dew-point (temp which vapor starts to condense)