FAR 91 Flashcards
FAR 91 questions from Sportys Prep
What altitude should be maintained on IFR off-airways, over mountains
- 2000 feet above highest obstacle
- within 4NM of course
For a VOR check at a VOT, with CDI centered, what should the OBS read?
- 360 degrees, FROM
- or 180 degrees, TO
How do you check a VOR on surface?
- Set OBS to designated radio (AF/D)
- the CDI must center with a +/- 4 degrees
- FROM indication
What are the weather minimums to list an IFR alternate airport that has VOR approach only?
- Ceiling 800 feet
- Visibility 2 miles
What are the visibility and cloud clearance for a flight under Special VFR daylight, under 1200ft AGL?
- For special VFR under 10,000 feet
- visibility: 1 mile
- maintain clear of clouds
Before conducting an IFR flight the PIC should know all available information of a flight including what?
Runway lengths at airports of intended use, and the aircraft takeoff and landing data
When is an alternate airport required to be listed on a flight plan?
If the airport of intended landing has a
- ceiling below 2000 feet
- visibility less than 3 miles
- from 1 hour before and 1 hour after of intended ETA
Aircraft operated under IFR are required to have in addition to the equipment required for VFR and night
A slip skid indicator
When flying VFR on top, If you receive this clearance and fly the course of 180°, at what altitude should you fly?
maintain altitude or flight level appropriate for VFR flight. A magnetic course of 180° – 359° and above 3000 feet AGL, any even thousand foot MSL alititde +500’ would be appropriate
What is the maximum tolerance of a VOR check in the air AND on the ground?
- * +/-4° for a VOR ground check.
- * +/- 6° is the maximum tolerance for airborne VOR check
In class G airspace, more than 1200 feet above the surface but less than 10,000 feet MSL, during the day, vfr fight visibility is what
- one statute mile visibility
- cloud clearance of 500 feet below
- 1000 feet above
- 2000 feet horizontal
At what cabin pressure altitude can a pilot fly for longer than 30 minutes without using supplemental oxygen?
12,500 feet
- The minimum flight crew must use supplemntal oxygen after 30 minutes at cabin pressure altitudes above:
- 12,500’ MSL up to and including 12,000’ MSL.
When making an AIRBORNE VOR check, what is the max tolerance between TWO indicators of a DUAL VOR system?
4 degrees between the two indicated bearings of a VOR
What record is taken during an VOR check in the aircraft log or other permanent record by a pilot?
- The date
- place
- bearing error
- and signature
When using a VOT for VOR check, the CDI should be cenetered and the OBS should indicate what?
- 360 radial
- With the VOT tuned in, the CDI should center with an OBS setting of
- 360 degrees FROM
- 180 degrees TO
If the RVR equipment is inop for an IAP that requires 2,400 RVR, how should you expect the visibility requirement to be reported?
As a ground visibility of 1/2 SM
Under what conditions are you not required to list an alternate airport for an IFR flight plan? IAP in use at the airport
When the weather reports a
- ceiling of 2,000 feet
- visibility 3 miles
- 1 hour before and 1 hour after ETA
What is the visiblity and cloud clearance operating in CLASS E airspace at 9,500 ft MSL with a VFR on Top clerance in daylight?
- 3SM vis
- 1000ft above
- 500 ft below
- 2000 ft horizontal
For CLASS E airspace, les than 10,000 feet MSL, the VFR flight visibility is “3/1/5/2”
For Class E airspace for flight ABOVE 10,000 feet, VFR on top during daylight, what is the cloud and vis requirements?
- 5SM vis
- 1000 above
- 1000 below
- 1 mile horizontal
Where is DME required under IFR?
At or above 24,000 feet MSL if VOR equipment is required
What minimum navigation equipment is required for IFR flight?
Navigation equipment appropriate to the ground facilities to be used
While airborne, what is the maximum tolerance variation between the two indicate bearinces when checkng one VOR against another?
4 degrees betwen the two indicated bearings to a VOR
What is the minimum in flight visibility and distance from clounds during special VFR dayight hours BELOW 1,200 feet AGL?
- 1 mile visibility
- clear of clouds
When departing an airport located outside controlled airspace during IMC, you must file an IFR flight plan and receive a clerance before when?
Entering Class E airspace
What are the fuel requirements if the forecast from 1 hour before to 1 hour after the ETA at the first landing airport indicates a ceiling of less than 2,000 feet?
- The airplane needs enough fuel to flow to the airport of intended landing
- then the alternate
- and then fly for 45 minutes at normal cruising speed
What is needed when making a VOR check for IFR operations?
- Date
- Place of operational check
- bearing error
- signature
What rules apply to the pilot in command when operating on a VFR on Top clerance?
- VFR and IFR
- If on a VFR on top clerance, maintain an altitude or FL appropriate for VFR flight
What are the supplemental oxygen requirements for flight?
- 12,500 you start to “worry” with FARAIM
- 12,500 (MSL) to including 14,000 (MSL) minimum flight crew, > 30 minutes duration.
- above 14,000 feet (MSL) - all minimum flight crew required to use oxygen entirely
- above 15,000 feet (MSL) each occupant of the aircraft is provided with supplemental oxygen entirely
What are the VFR flight Weather Minimums for CLASS E airspace above 10,000ft?
- 111
- 1000 below
- 1000 above
- 1 sm horizontal
- 5 sm visibility
What are the VFR flight Weather Minimums for CLASS E airspace BELOW 10,000ft?
- 152
- 500 below
- 1000 above
- 2000 horizontal
- 3 SM visibility
For airspace classes C, D, E, BELOW 10,000 feet, what is the flight and cloud visibility requirements?
- 152
- 1000 above
- 500 below
- 2,000 horizonal
3 SM visibility
What are the cloud and visibility requirements for CLASS B airspace, below 10,000 feet?
- 3 SM visibility
- Clear of clouds
What are the differences for Class G airspace (day/night), 1,200 AGL or higher?
- Cloud clearance the same
- 152
- 1000 above
- 500 below
- 2000 horizontal
- 3SM vis NIGHT
- 1SM vis DAY
What are the differences for Class G airspace (day/night), below 1,200 AGL ?
NIGHT
- 152
- 3SM vis
DAY
- 1SM vis
- Clear of clouds
An aircraft altimeter test and inspection must have been done within
the last 24 calendar months
On an AIRBORNE VOR check with a DUAL VOR system, what is the max tolerance of indications?
4 degrees between the two indicated radials of a VOR
What are the minimum weather requriements that must be forecast to list an airport as an alternate with NO Instrument Approach Procedure (IAP)?
The ceiling and visibility at ETA must allow decent from the MEA, approach, and landing under basic VFR.
In operations over area designated as mountainous where no other mimum altitude is prescribed, no person may operate under IFR below what altitude
2000 feet above the highest obstacle
What are the alternate minimums that must be forecast at the ETA for an aiport that HAS A PRECISION approach?
- 600 ft ceiling
- 2 miles visibility
What reports are required of a flight operating on an IFR clearance specifying VFR on Top in a NON RADAR environment?
The same reports that are required of any IFR flight
– when operating in VFR conditions with an ATC clearnace to maintian VFR on top, pilots on IFR flight plans must comply with the IFR rules that are applicable to the flight.
When checking a dual VOR system by use of a VOT (ground), what should the VORs look like?
With the VOT tuned in, the CDI should center with an OBS setting of 360 degrees FROM or 180 deg TO. The allowable variation is +/-4. The tail shows what radial the plane is on.
A coded transponder equipped with altitude reporting capability is required in all controlled airspace at and between what altitudes?
at and above 10,000 feet MSL, excluding at and below 2,500 feet AGL
When may ATC request a detailed report of an emergency even though a rule has not been violated?
When ATC priority has been given
What minimums must be considered in selecting an altitude when operating with a VFR on top clearance?
- Minimum IFR altitude
- minimum distance from clouds
- visibility appropriate to altitude selected
What are the weather and visibility minimums for CLASS G airspace above 1,200ft AGL and above 10,000 ft MSL, DAY?
- 5 miles vis
- 1,000 feet below
- 1,000 feet above
- 1SM horizontal
What checks and inspections for instruments must be done prior to fly IFR?
- VOR within 30 days
- altimeter systems within 24 calendar months
- transponder within 24 calendar months
- ELT does not need to be tested, but required every 12 cal months
Where can the VOT frequency for a particular airport be found?
In the AF/D and on the A/G Voice Communication Panel of the En Route Low Altitude Chart
What are the minimum weather conditions to be forecast at the ETA at the alternate airport that HAS an IAP with standard alternate minimums?
600ft ceiling and 2 SM visibility at your ETA
In the 48 contig states, excluding airspace below 2,500 ft AGL, a transponder with Mode C is required in all controlled airspace at and above what altitude?
10,000 FT MSL
When making an airborne VOR check of DUAL VOR systems, what is the max tolerance?
4 degrees between the two indicated bearings of a VOR
For the dual VOR check, the pilot must center the CDI of both VORs with a TO indication. Setting the VORs to the same radials and then testing does not meet this criteria.
What publication covers the procedures required for A/C accident and incident reporting responsibilites for pilots?
NTSB Part 830
