Atc Tower Cab Block 4

A Change in wind speed/direction in a short distance, resulting in a tearing or shearing effect.

A small downburst with outbursts of damaging winds extending 2.5 miles or less.

In spite of its small horizontal scale, it could include wind speeds as high as 150 kts.

Can exist in a horizontal, or vertical direction and occasionally in both.

Poses a hazard to aircraft during take off or landing, because it produces both horizontal and vertical wind shear.

Usually extends between 1/2 and 2 1/2 miles in diameter.

The leading edge of gusty surface winds from thunderstorm downdrafts; sometimes associated with a shelf cloud or a roll cloud.

Fully automated, computer driven system that provides airport surface wind condition information to ATC in the control tower.

Requires no essential operator intervention while in use.

Purpose of LLWAS is to:

Provides continuous output of calculated results to TRACON and Tower displays. Located in the Tower equipment room.

Located at strategic positions around the airport. Each are self contained wind units equipped with Anemometers, 2 way communications with the master station and a back up battery.

Data from the 6th sensor:

The station that provides gust data.

Integral in providing data calculations and used as a comparative reference for data derived from other remote stations.

The occurrence of a column of air perpendicular to the ground with acceleration toward the ground describes a

A. Frontal Passage

B. Microburst

C. Gust Front

The typical LLWAS is comprised of a centerfield station and ___ other remote stations?

The LLWAS display panel located in the TRACON is normally used to report wind conditions

A Within the airport area

B. On a five mile final

C. For a selected runway

Displays wind data from the centerfield station and four of the other five stations.

Displays the 2 min average of the airport wind direction to the nearest 10 degree and the 2 min average of the airport wind speed to the nearest nautical mile per hour.

Is the only row that provides gust data.

Row 2

Rows 3 - 6

Lamp Test Indicator

Blanking switches

This indicator illuminates and flashes if data is not received from the master computer for approximately 100 seconds. All boundary rows blank simultaneously.

This indicator illuminates when the associated boundary station is selected.

Used by approach control ATCs. Displays a 2 min average from the centerfield indicator plus gust info is available.

Manual controls on the TRACON display are identical to corresponding controls on the tower display panel and preform the same functions.

A. True

B. False

If the Centerfield station is out of service or has failed

Rows 2 - 6 will flash all 9s

If stations other than the centerfield are OTS

If a wind shear is occurring in the area by one of the remote stations

If the wind speed at a remote station is calm (below 3 kts)

If the centerfield station is OTS row 1 will flash all 9s except the last digit of the wind ____ will flash a 1.

A. Speed

B. Gust

C. Direction

What will alert the controller of a wind shear?

A. The Data Fail light will blink

B. The audible alarm will sound

C. The blanking switch/status indicator will flash

If no data has been received from the central computer for about ____ seconds the data fail light will flash with a blank display.

A. 20

B. 60

C. 100

A low level wind shear/microburst may be reported by

At locations equipped with LLWAS the local controller must provide wind info as follows:

An advisory for wind shear must be given to all succeeding aircraft when

If an aircraft under your control informs you that it is performing a wind shear escape

Which of the following is an example of the phraseology used for a wind shear advisory?

A. Runway one seven arrival microburst alert, four zero knot loss, three mile final

B. Runway one seven arrival wind shear alert, four zero knot loss, three mile final

C. Runway one seven arrival alert, four zero knot loss, three mile final

If requested by the pilot or deemed appropriate by the controller, issue the displayed wind information

A. oriented to the threshold or departure end of the runway

B. displayed as Airport Wind

C. with the greatest gust factor

What is the phraseology local controller uses to provide wind information if a wind shear is detected?

A. Wind shear alert. Airport wind (direction) at (velocity). (Location of sensor) Boundary wind (direction) at (velocity)

B. Airport wind shear alert. (location of sensor) boundary wind (direction) at (velocity)

C. Wind shear alert advisory in effect for (location of sensor) boundary and airport

A microburst encounter poses a serious threat to aircraft during take off and landing because it produces

A. a rapid change from tailwind to headwind conditions

B. severe updrafts

C. both vertical and horizontal wind shear

Provide airport traffic control service based only upon

Provide preventive control service only to aircraft operating in accordance with

The Local controller has primary responsibility for

When Local authorizes another controller to cross an active runway, LC must

Ground must advise Local when the coordinated runway operation is complete. LC may initiate the closing of the coordination loop however

LC must coordinate with GC when

Authorization for traffic to proceed on an active runway for purposes other than crossing

When runways are not visible from the tower or on radar

Coordination may be accomplished via

LC and GC continuously scan areas to ensure that the runway is free of all vehicles, equipment, and personnel before

When using Certified Tower Radar Display (CTRD) you may issue traffic advisories that include:

Determine the position of an aircraft before

Do not authorize an aircraft to line up and wait at an intersection

Steady Green light gun

Flashing green light gun

Steady red light gun

Flashing red light gun

white flashing light gun

red and green light gun

Standard direction of traffic pattern

Departure leg

Upwind leg

Issue the appropriate departure control frequency and beacon code

After takeoff instruct civil, military transport and cargo to

Do not request departing military turbo prop/ turbo jet to make radio feq or squak changes before

Nonapproach control towers without tower radar display may be authorized to provide appropriate separation between consecutive departures based on

Ensures separation

Initiates control instructions

Scan tower cab environment

Process and forward flight plan info

issues appropriate control instructions/restrictions including speed control, vectoring techniques, and visual separation

Provides safety alerts, recognizing that they are a first priority duty along with separation of aircraft

The conditions and limitations for the radar usage must

CTRDs may be used by local for the following

Uncertified displays must be used

The Local Control position is in direct communication with the aircraft and ensures separation of aircraft ____

A. in the designated airspace

B. on the taxiways

C. above FL180

Local Control observes present traffic and considers ____ to predict if an overload may occur

A. Traffic Delays

B. Forecasted Traffic

C. Equipment Capability

Who sets the radar displays to the appropriate area of jurisdiction?

Issue the current RVR for the runway when

The RVR data is not acceptable and can not be reported when

Issue both midpoint and rollout RVR when

Issue the current RVR for the runway when

When the RVR indicates a reportable value of 6,000 feet or less, issue the current ____ RVR for the runway in use to departing aircraft

A. Rollout

B. Midpoint

C. Touchdown

The minimum info needed in an emergency is

Do not transfer responsibility of an emergency unless

If an aircraft involved in an emergency is operated by a foreign air carrier

When an emergency occurs on the airport proper

Orient an aircraft by any of the following recognized methods

When info is received from any source that a bomb is on or near an aircraft obtain the following and relay it to your supervisor

If a bomb threat is received and the aircraft is on the ground

If a pilot insists on taking off with a bomb threat

Base your decision about the type of assistance needed to handle an emergency intelligently on information and requests received from the

A. Pilot

B. Aircraft Owner

C. Airport Authority

For special VFR and VFR on top

For runway 16/34 departures

For IFR departures runways 10R/L and 28R/L runway heading or

Issue missed approach instructions as follows

When CTRD is out of service

Local control shall use ___ to maintain the arrival/departure sequence

A. CTRD

B. pad management procedures and strips

C. memory

Position determination of an aircraft on the airport may be determined visually by the controller, by pilots, or through the use of

A. ASR

B. ASDE

C. ARTS

Approve a pilots request to cross Class C or D surface areas at a speed that does not exceed ____ knots unless higher min speed is required.

A. 200

B. 250

C. 225

Local control must forward to TRACON arrival times of all

A. IFR

B. SVFR

C. OTP

Local control must use automatic releases on

A. Runways 10L/R and 28R/L only

B. Runways 10L/R and 16/34 only

C. All runways

Issue both midpoint and rollout RVR when the value of either is less than___ feet and the value of the touchdown RVR is greater than the midpoint or rollout.

A. 1000

B. 2000

C. 3000

Specific traffic pattern entry info can be omitted if the aircraft is to circle the airport to the

A. North

B. Right

C. Left

At low key

Except over an aircraft in takeoff position or a departure aircraft a low approach my be authorized with an altitude restriction of not less than

A. 300

B. 500

C. 1000

Controllers may authorize simultaneous opposite direction operations on parallel runways only when

A. Pilots are in direct communication with each other

B. Operations are conducted in VFR conditions

C. Neither is a CAT III aircraft

The minimum distance required from the landing runway threshold when a CAT I is landing behind a CAT I is

A. 6000

B. 4500

C. 3000

The min distance needed when a CAT I is landing behind a CATII is

A. 3000

B. 4500

C. 6000

Between sunset and sunrise what is the min distance required from the landing runway threshold when at CAT II is landing behind a landing CAT I

A. 4500

B. 3000

C. Clear of Runway

A C172 landing behind a PA38

A C172 landing behind a BE40

A BE58 landing behind a C172

During same runway ops while LUAW is being applied landing clearance must be withheld if

Consider an aircraft cleared for touch and go as an arriving aircraft until it

A. Crosses the landing threshold

B. Touches down

C. Turns final

A Simulated Flameout approach pattern consists of

A. High base, low base, straight in, and rollout

B. High base, low base, straight in, rollout and flare

C. High key, low key, base key, flare and roll out

W-hen an aircraft conducting an overhead maneuver reaches the initial point on the initial approach portion of the maneuver

The minimum distance required to conduct LAHSO is

For LAHSO weather requirements are

A light bar is considered OTS when

Each landing aircraft with a LAHSO clearance shall be required to read back the clearance and will be given

A. A Wind Check

B. Traffic Info

C. Rejected Landing Instructions

All conditions specified in LAHSO must be issued in sufficient time for pilots of the aircraft involved to take action if desired and

A. prior to the aircraft involved turning final

B. prior to the aircraft involved crossing the approach end of the runway

C. no later than the time landing clearance is issued

Information issued to arriving aircraft that will conduct an overhead maneuver includes

A. ATIS

B. direction of flight

C. request for report on initial approach

Phraseology to issue a landing clearance to an arriving aircraft reporting a position where they should be seen and has not been visually observed is

A. Not insight, runway (number) cleared to land

B. Cleared to land

C. Runway (number) cleared to land, not in sight

Between sunrise and sunset if you can determine distances by reference to suitable landmarks, what is the min distance required from the landing threshold when a CAT I is landing behind a CAT I

A. 3000

B. 4500

C. Clear of Runway

Do not clear an aircraft to line up and wait if

Do not use ___ instructions when instructing an aircraft to line up and wait

Do not use the term "full length"

N71GL has landed and is taxing on Runway 34, the only active runway. N56CD is requesting takeoff clearance on runway 34. Phraseology for N56CD is

A. November five six charlie delta, cleared for take off

B. November five six charlie delta, runway three four line up and wait

C. November five six charlie delta line up and wait

When must you identify the runway in a take off clearance ?

When canceling a previously issued takeoff clearance you should

A Cessna 310 is 1,00 feet down the runway on takeoff roll. A cherokee is holding short of the runway. Can takeoff clearance now be issued ?

A B727 is departing Runway 28R. A Tomahawk is holding short of Runway 34 requesting takeoff. When is the earliest the Tomahawk can depart?

If a helicopter requests departure from an area not visible from the tower the phraseology should be

A. (ACID) cleared for takeoff

B. (ACID) Proceed as requested at our own risk

C. (ACID) departure from (location) will be at your own risk

Separate a departing helicopter from an arriving helicopter by ensuring that the departure does not take off until the arrival has

A. Established visual contact wit the departing aircraft

B. Arrived and taxied off the landing area

C. Landed

If suitable landmarks are not available a departing aircraft must not begin takeoff roll until the preceding departure has become airborne and crossed the runway end or

A. has been assigned a diverging heading

B. is the same category

C. has turned to avert conflict

A departing piper colt is airborne. The earliest time you can clear a succeeding Cherokee for takeoff from the same runway using minimum prescribed separation is

A. when the Piper Colt has departed and crossed the runway end

B. when the Piper Colt is 3,000 from the landing threshold

C. when 3,000 exists between the two aircraft

The minimum distance required for a CAT I departing behind a CAT III same runway is

Helicopters are authorized to conduct simultaneous takeoffs if the

A. Distance between takeoff points is at least 200 feet

B. Previous departure is airborne

C. Wind is less than 10 kts

If the extended centerline of a runway crosses the extended centerline of a converging runway within ___ of either departure end apply intersecting runway separation