When must an operational check on the aircraft VOR equipment be accomplished when used to operate under IFR?
Within the preceding 10 days or 10 hours of flight time.
Within the preceding 30 days or 30 hours of flight time.
Within the preceding 30 days.
Which data must be recorded in the aircraft log or other appropriate log by a pilot making a VOR operational check for IFR operations?
VOR name or identification, date of check, amount of bearing error, and signature.
Place of operational check, amount of bearing error, date of check, and signature.
Date of check, VOR name or identification, place of operational check, and amount of bearing error.
What record shall be made in the aircraft log or other permanent record by the pilot making the VOR operational check?
The date, place, bearing error, and signature.
The date, frequency of VOR or VOT, number of flight hours since last check, and signature.
The date, place, bearing error, aircraft total time, and signature.
Which checks and inspections of flight instruments or instrument systems must be accomplished before an aircraft can be flown under IFR?
VOR within 30 days, altimeter systems within 24 calendar months, and transponder within 24 calendar months.
ELT test within 30 days, altimeter systems within 12 calendar months, and transponder within 24 calendar months.
VOR within 24 calendar months, transponder within 24 calendar months, and altimeter system within 12 calendar months.
When making an airborne VOR check, what is the maximum allowable tolerance between the two indicators of a dual VOR system (units independent of each other except the antenna)?
4 degrees between the two indicated bearings of a VOR.
Plus or minus 4 degrees when set to identical radials of a VOR.
6 degrees between the two indicated radials of a VOR.
What minimum navigation equipment is required for IFR flight?
VOR/LOC receiver, transponder, and DME.
VOR receiver and, if in ARTS III environment, a coded transponder equipped for altitude reporting.
Navigation equipment appropriate to the ground facilities to be used.
(Refer to figures 27 and 165) To which maximum service volume distance from the OED VORTAC should you expect to receive adequate signal coverage for navigation at the flight planned altitude?
100NM
80NM
40NM
(Refer to figure 58) Which indications on the VOR receivers and DME at the Easterwood Field VOR receiver checkpoint would meet the regulatory requirement for this flight?
VOR #1...097 FROM; VOR #2...101 FROM; DME...3.3
VOR #1...097 TO; VOR#2...096 TO; DME...3.2
VOR#1...277 FROM; VOR#2...280 FROM; DME3.3
(Refer to figure 64) The course deviation indicators (CDI) are centered. Which indications on the No. 1 and No. 2 VOR receivers over the Lafayette Regional Airport would meet requirements for the VOR receiver check?
VOR #1...162 TO; VOR#2...346 FROM
VOR #1...160 FROM; VOR#2...162 FROM
VOR #1...341 FROM; VOR #2...330 FROM
(Refer to figure 76) Which indication would be an acceptable accuracy check of both VOR receivers when the aircraft is located on the VOR receiver checkpoint and the Helena Regional Airport?
A.
B.
C.
What is the maximum tolerance allowed for an operational VOR equipment check when using a VOT?
Plus or minus 4 degrees.
Plus or minus 6 degrees.
Plus or minus 8 degrees.
When using VOT to make a VOR receiver check, the CDI should be centered and the OBS should indicate that the aircraft is on the
090 radial.
180 radial.
360 radial.
How should the pilot make a VOR receiver check when the aircraft is located on the designated checkpoint on the airport surface?
Set the OBS to 180 plus or minus 4 degrees; the CDI should center with a FROM indication.
Set the OBS on the designated radial. The CDI must center within plus or minus 4 degrees of that radial with a FROM indication.
With the aircraft headed directly toward the VOR and the OBS set to 000, the CDI should center within plus or minus 4 degrees of that radial with a TO indication.
When the CDI needle is centered during an airborne VOR check, the omnibearing selector and TO/FROM indicator should read
within 4 degrees of the selected radial.
within 6 degrees of the selected radial.
0 degrees TO, only if you are due south of the VOR.
(Refer to figure 81) When checking a dual VOR system by use of a VOT, which illustration indicates the VOR's are satisfactory?
1.
2.
4.
While airborne, what is the maximum permissible variation between the two indicated bearings when checking one VOR system against the other?
4 degrees between the two indicated bearings to a VOR.
Plus or minus 6 degrees when set to identical radials of a VOR.
Set the OBS on 180 plus or minus 4 degrees; the CDI should center with a FROM indication.
(Refer to figure 82.) Which is an acceptable range of accuracy when performing an operational check of dual VOR's using one system against the other?
Where can the VOT frequency for a particular airport be found?
On IAP Chart and in the Airport/Facility Directory
Only in the Airport/Facility Directory.
In the Airport/Facility Directory and on the A/G Voice Communication Panel of the En Route Low Altitude Chart.
Which indications are acceptable tolerances when checking both VOR receivers by use of the VOT?
360 TO and 003 TO, respectively.
001 FROM and 005 FROM, respectively.
176 TO and 003 FROM, respectively.
In which publication can the VOR receiver ground checkpoint(s) for a particular airport be found?
Airman's Information Manual
En Route Low Altitude Chart.
Airport/Facility Directory.
Which is the maximum tolerance for the VOR indication when the CDI is centered and the aircraft is directly over the airborne checkpoint?
Plus or minus 6 degrees of the designated radial.
Plus 6 degrees or minus 4 degrees of the designated radial.
Plus or minus 4 degrees of the designated radial.
4 degrees between the two indicated radials of a VOR.
Which distance is displayed by the DME indicator?
Slant range distance in NM.
Slant range distance in SM.
Line of sight direct distance from aircraft to VORTAC in SM.
Where does the DME indicator have the greatest error between ground distance to the VORTAC and displayed distance?
High altitudes far from the VORTAC.
High altitudes close to the VORTAC.
Low altitudes far from the VORTAC.
For operations off established airways at 17,000 feet MSL in the contiguous U.S> (H) Class VORTAC facilities used to define a direct route of flight should be no farther apart than
75NM.
100NM.
200NM.
What indication should a pilot receive when a VOR station is undergoing maintenance and may be considered unreliable?
No coded identification, but possible navigation indications.
Coded identification, but no navigation indications.
A voice recording on the VOR frequency announcing that the VOR is out of service for maintenance.
A particular VOR station is undergoing routine maintenance. This is evidenced by
removal of the navigational feature.
broadcasting a maintenance alert signal on the voice channel.
removal of the identification feature.
What is the meaning of a single coded identification received only once approximately every 30 seconds from a VORTAC?
The VOR and DME components are operative.
VOR and DME components are both operative, but voice identification is out of service.
The DME component is operative and the VOR component is inoperative.
Which DME indication should you receive when you are directly over a VORTAC site at approximately 6,000 feet AGL.
0.
1.3
