Practice Oral #3 Flashcards
What is an occluded front?
Cold front overtaking a warm front, embedded TS
What direction does air flow in a low pressure system
Counter-Clockwise and rising
Why do lows produce a lifting action?
It cannot go out against the pressure gradient and it cannot go into the ground, it has to go up.
What is the droplet size of clear ice compared to rime ice?
Clear ice particles are larger and form more commonly in cold fronts
What are the levels of severity referencing icing?
Trace, light, moderate, severe
how is breaking action measured?
Reported by pilots or airport management, measured in nil, poor, fair, good
Where would you look to predict windshear?
wind shear PIREPs, METAR remarks, ITWS (Integrated Terminal Weather System), TDWR (Terminal Doppler Weather Radar), LLWAS (Low Level Windshear Advisory System)
What are some places you would expect to find wind shear?
Inversion layers, thunderstorms, surface obstructions, unstable lapse rate (3c/1000ft)
At what rate does temperature decrease with altitude?
2c/1000ft
What is ASRS?
Aviation Safety Reporting System, voluntary reporting of info regarding safety issues.
What are some situation in which you would declare an emergency?
Overdue or missing aircraft; pilots are lost; fire; medical issue on board, engine shutdown in flight, ect.
What 4 limitations must be considered for takeoff?
Airport must have 1) an instrument approach
2) An official source of weather
3) Traffic advisories and status of
service
4) Facilities & services to safely
conduct IFR operations
What is required for Lower Landing Minimums?
15% additional runway available over the landing field length; precision instrument runway markings or operational centerline lights
What is the difference between a dispatch release and & flight release?
Dispatch Release - Flag/Domestic
Flight Release - Supplemental
Describe the communication sequence between the pilot and ATC.
Pilots call Clearance Delivery first, then Ground Control for taxi, Tower for takeoff, Departure Control next, Center, Approach Control, Tower, and Ground Control to taxi to the gate.
What is HIWAS?
High Altitude Weather Advisory Service
Where can i find a list of certified company airports?
C070
Can the flight depart without a dispatch authorization?
Only if operating Part 91( MX test flight or ferry flight for MX)
If the pilots have the required visibility to land, but not the ceiling can they land?
Yes, ceiling is not a requirement in part 121
What 4 things are considered when calculating required fuel as per the FARs?
- Wind & Weather
- Anticipated Traffic Delays
- One instrument approach & possible Missed
approach - Any other condition that may delay landing
What is the restriction with 1 PACK inop?
FL 250
Can a senior captain riding in 1st class replace a junior captain in bound to the airport to the airport if the higher mins for junior preclude him from making a landing due to low weather conditions?
Yes, an amendment is required and a log book entry
Name 3 AIRMETs
Sierra, Tango, Zulu
What is prevailing visibility?
Greatest horizontal distance over which objects or bight lights can be seen over at least half the horizon
Does the B737-300 have anti-ice or deicing capabilities?
Anti-icing, Deicing is a ground operation
What is the max tailwind and crossing components
Tailwind - 10kts
Crosswind - Dry - 35kts
Crosswind - Wet - 15kts
How long are METARs valid?
METARs are valid only at the time of issue and broadcast until superseded by the next hour or by a speci.
What is the definition of a large aircraft?
Over 12,500 lbs
The altimeter senses altitude by the difference of the..
Ram air and static pressure
The NDB transmitter is on the ground. The signal is received in the cockpit with what instrument?
Automatic Direction Finder (ADF)
Who can open or close an airport?
The Airport manager or his staff
Can the pilot depart at night without runway lights
No
What is required to begin an instrument approach?
Official weather
Company policy requires that we meet three requirements at all times, they are…
Safe, efficient and on time.
If something is missing from the aircraft what do we check?
CDL - Configuration Deviation List
In researching a regulation, we may find the answer in both the FARs and Ops spec, which takes precedence?
The more restrictive answer
What is an alternate required for the destination airport?
the 1,2,3 rule
What are the minimums for a senior captain at the alternate?
The minimums on the bottom of the approach chart
What are the minimums for a junior captain at the alternate?
Never less than 300 & 1
When is an alternate required for the departure airport?
When the weather is below landing minimums for the departure airport
Can we operate into a civilian airport not listed as Part 139?
no
What should the hydraulic pressure be in the hydraulic system?
3000psi, 2800 min to dispatch
How many hydraulic systems are on the 737?
3 - A, B, Standby
How many flight attendants are required?
Divide the number of seats by 50 and round up
How many hours can a dispatcher legally work at one time before a rest period is required?
10 hours
In which approach category is the B737?
Cat C
Are our pilots allowed to do circling approaches in IMC in our ops spec?
No, because we do not practice them in the simulator. C075
A jet stream by definition is a wind of __ kts or greater just below the tropopause.
50kts
What are 2 types of NOTAMs?
Distant (D) and Flight Data Center (FDC) NOTAMs
The standard rate of decent for an ILS approach is
3 degrees
The Enroute Flight Watch frequency nationwide below FL180 is…
122.0
If a flight diverts to an alternate, who is responsible for coordination?
Dispatcher
What is the primary source of information regarding the expected weather at the destination?
Terminal Aerodrome Forecast (TAF)
How often does the automated weather station update the ATIS?
Every minute
A radar summary chart is issued how often?
Every hour at 35 min after the hour
300mb is equal to approx what FL?
FL 300
At what point in the atmosphere does the lapse rate go to zero?
At the tropopause
The PIC informs you that he is diverting to an airport not listed in the dispatch release as per earlier agreement with you. Under what condition can he do this?
Only if he is declaring an emergency
What is a sterile cockpit?
No idle chit-chat below 10,000ft. Takeoff and landing only, excludes cruise
