IFR Exam 2 Quiz & Flashcards: VASI and DME Insights

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Questions and Answers

Which indication would a pilot see while approaching to land on a runway served by a 2-bar VASI?

If departing to the high side of the glidepath, the far bars will change from red to white. (correct)

If on the glidepath, both near bars and far bars will appear white.

If on the glidepath, the near bars will appear red, and the far bars will appear white.

Which lines should you cross when exiting the runway?

Solid lines.

Both solid and striped lines. (correct)

Striped lines.

The middle and far bars of a 3-bar VASI will:

Constitute a 2-bar VASI for using the lower glidepath.

Constitute a 2-bar VASI for using the upper glidepath.

Both appear white to the pilot when on the upper glidepath. (correct)

When on the proper glidepath of a 2-bar VASI, the pilot will see the near bar as:

White and the far bar as red. Signup and view all the answers

If an approach is being made to a runway that has an operating 3-bar VASI and all the VASI lights appear red as the airplane reaches the MDA, the pilot should:

Level off momentarily to intercept the proper approach path. Signup and view all the answers

Which approach and landing objective is assured when the pilot remains on the proper glidepath of the VASI?

Safe obstruction clearance in the approach area. Signup and view all the answers

Which runway marking indicates a displaced threshold on an instrument runway?

Arrows leading to the threshold mark. Signup and view all the answers

Which type of runway lighting consists of a pair of synchronized flashing lights, one on each side of the runway threshold?

REIL. Signup and view all the answers

The primary purpose of runway end identifier lights, installed at many airfields, is to provide:

Rapid identification of the approach end of the runway during reduced visibility. Signup and view all the answers

The 'runway hold position' sign denotes:

An entrance to the runway from a taxiway. Signup and view all the answers

'Runway hold position' markings on the taxiway:

Identify where aircraft hold short of the runway. Signup and view all the answers

The 'No Entry' sign identifies:

Paved area where aircraft entry is prohibited. Signup and view all the answers

When turning onto a taxiway from another taxiway, the 'taxiway directional sign' indicates:

Designation and direction of taxiway leading out of an intersection. Signup and view all the answers

In the movement area of an airport, what does a 'Destination' sign indicate?

Direction to the takeoff runway. Signup and view all the answers

When exiting the runway, what is the purpose of the runway exit sign?

Indicates designation and direction of exit taxiway from runway. Signup and view all the answers

A runway exit sign:

Points toward a named taxiway that leads off the runway. Signup and view all the answers

The ILS critical area markings denote:

Where you are clear of the ILS critical area. Signup and view all the answers

A pilot is making an ILS approach and is past the OM. What should the pilot do if the electronic glide slope malfunctions?

The pilot may continue the approach and use the VASI glide slope in place of the electronic glide slope. Signup and view all the answers

Which pilot action is appropriate if more than one component of an ILS is unusable?

Use the highest minimum required by any single component that is unusable. Signup and view all the answers

Immediately after passing the final approach fix inbound during an ILS approach in IFR conditions, the glide slope warning flag appears. The pilot is:

Permitted to continue the approach and descend to the localizer MDA. Signup and view all the answers

Which substitution is appropriate during an ILS approach?

LOC minimums should be substituted for ILS minimums whenever the glide slope becomes inoperative. Signup and view all the answers

When simultaneous approaches are in progress, how does each pilot receive radar advisories?

On tower frequency. Signup and view all the answers

A Precision Runway Monitoring (PRM) approach may require:

Monitoring of two communication frequencies simultaneously. Signup and view all the answers

Precision Runway Monitoring (PRM) is:

A radar system for monitoring approaches to closely spaced parallel runways. Signup and view all the answers

Which of the following statements is true regarding Parallel ILS approaches?

Parallel ILS approaches provide aircraft a minimum of 1-1/2 miles radar separation between successive aircraft on the adjacent localizer course. Signup and view all the answers

Which distance is displayed by the DME indicator?

Slant range distance in NM. Signup and view all the answers

Where does the DME indicator have the greatest error between ground distance to the VORTAC and displayed distance?

High altitudes close to the VORTAC. Signup and view all the answers

What is the meaning of a single coded identification received only once approximately every 30 seconds from a VORTAC?

The DME component is operative and the VOR component is inoperative. Signup and view all the answers

Which DME indication should you receive when you are directly over a VORTAC site at approximately 6,000 feet AGL?

1 Signup and view all the answers

As a rule of thumb, to minimize DME slant range error, how far from the facility should you be to consider the reading as accurate?

One or more miles for each 1,000 feet of altitude above the facility. Signup and view all the answers

When a VOR/DME is collocated under frequency pairings and the VOR portion is inoperative, the DME identifier will repeat at an interval of:

30 second intervals at 1350 Hz. Signup and view all the answers

How does a pilot determine if DME is available on an ILS/LOC?

IAP indicate DME/TACAN channel in LOC frequency box. Signup and view all the answers

How should a pilot determine when the DME at Price/Carbon County Airport is inoperative?

The airborne DME may appear normal, but there will be no code tone. Signup and view all the answers

How should a pilot determine when the DME at PUC airport is inoperative?

The airborne DME may appear normal, but there will be no code tone. Signup and view all the answers

As a guide in making range corrections, how many degrees of relative bearing change should be used for each one-half mile deviation from the desired arc?

10° to 20°. Signup and view all the answers

What is a waypoint when used for an IFR flight?

A predetermined geographical position used for an RNAV route or an RNAV instrument approach. Signup and view all the answers

What minimum airborne equipment is required to be operative for RNAV RWY 36 approach at Adams Field?

Any approved RNAV receiver. Signup and view all the answers

What are the primary benefits of satellite based area navigation (RNAV)?

Provides optimal routing and altitudes. Signup and view all the answers

Study Notes

VASI and Approach Procedures

A 2-bar VASI system shows both near bars and far bars white if on the glidepath.
Departing the glidepath high side causes the far bars to change from red to white.
A 3-bar VASI's middle and far bars will both show white on the upper glidepath.
On the proper glidepath of a 2-bar VASI, the near bar appears white, while the far bar appears red.

Runway Markings and Signs

Striped and solid lines should be crossed when exiting a runway.
Displaced threshold on an instrument runway is marked by arrows leading to the threshold.
'Runway hold position' signs indicate an entrance to the runway from a taxiway, while markings identify where aircraft must hold short.
'No Entry' signs denote areas where aircraft entry is prohibited.

Taxiway and Directional Signs

'Taxiway directional signs' provide designation and direction of the taxiway leading out of an intersection.
'Destination' signs indicate direction to the takeoff runway from a taxiway.
Runway exit signs show the designation and direction of exit taxiways from the runway.

ILS and Glide Slope Procedures

ILS critical area markings indicate where the aircraft must be to clear the ILS area.
If the glide slope malfunctions, pilots can continue the approach using the VASI as a reference.
Inoperable components of an ILS lead pilots to use the highest minimum required by any unusable component.
A glide slope warning flag requires pilots to continue to the localizer MDA.

DME displays slant range distance in nautical miles; greatest error occurs at high altitudes close to the VORTAC.
Coded identification from a VORTAC indicates the DME component is operative, while the VOR is inoperative.
Accurate DME readings can typically be considered when two miles or more away from the facility for each 1,000 feet of altitude above.

RNAV and Equipment Requirements

RNAV waypoints are predetermined geographical positions used for RNAV routes and approaches.
Satellite-based RNAV provides optimal routing and altitudes, minimizing radio tuning and communication needs.
Minimum equipment required for RNAV approaches includes any approved RNAV receiver.

Approach Monitoring

Precision Runway Monitoring requires simultaneous monitoring of two communication frequencies.
During parallel ILS approaches, radar separation is maintained between aircraft using adjacent localizer courses.

Summary Notes

Proper glidepath navigation ensures safe obstruction clearance and guidance.
Runway signage and markings are crucial for the safe transition from taxiway to runway.
Awareness of communication protocols during multi-aircraft approach situations enhances safety and efficiency.

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