Browse all practice questions for the Enroute Academy Controller Knowledge Test (CKT) 1 Practice Exam. Search by topic, open any question and review its full explanation, then test yourself in the practice quiz.

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  • Which two facilities' LOA governs the nonradar procedures?
  • N1234N has been issued a descent from 12,000 feet to 6,000 feet. N4567B is at 14,000 feet. N4567B can be assigned 12,000 feet when N1234N reports leaving ________ feet.
  • What must always be stated in an abbreviated clearance?
  • ________________ only after an aircraft is established on a segment of a published route or an instrument approach procedure, or has been assigned an altitude to maintain until established on a segment of a published route or an instrument approach procedure.
  • When should arrival information be forwarded to a VFR Tower?
  • Which document would a pilot consult to obtain the detailed steps for an instrument approach?
  • What is necessary in order to use an abbreviated departure clearance?
  • In airports with ATC service, which item is specified as needed in a clearance?
  • For charted holding patterns, which phrase indicates to follow the published hold parameters?
  • What is the required lead time for passing flight progress data to the receiving facility's area?
  • All of the following are required conditions for authorizing a non-approach control tower to provide visual separation between aircraft within a surface area or designated area EXCEPT
  • Which statement best reflects the priority order for ATC actions?
  • In the N1234A and N4567B scenario, N4567B may be assigned 10,000 feet when N1234A reports leaving ________ feet.
  • A flight progress strip should be removed from the sector when?
  • Under Greenwood ATCT FDIO operations, arrival information should be forwarded if which condition(s) occur?
  • At what distance from a VOR will two converging aircraft lose separation if their angle of divergence is 15 degrees?
  • During manual data transfer between Aero ARTCC and Fort Worth ARTCC, coordination must be affected with the receiving ARTCC before departure when the departure point is less than _________ flying time from the ARTCC boundary.
  • When two aircraft will depart adjacent airports and their courses diverge by 55 degrees immediately after takeoff, what is the minimum separation that may be used?
  • When must arrival information be forwarded to an approach control facility?
  • Which item is not included in the forward sequence to a VFR Tower according to the example?
  • If the times are the same, sequence the flight progress strips by
  • When are aircraft established on radials of the same NAVAID that diverge by at least 15 degrees considered laterally separated?
  • What phraseology example correctly identifies the order of information to forward to the VFR Tower?
  • What is the phraseology for issuing holding instructions when the holding pattern is charted?
  • Which type of separation is addressed by the 44-knot and 22-knot rules?
  • Which of the following is not controlled airspace?
  • A pilot who has a cruise clearance is authorized to
  • When issuing a clearance void time at a non-towered airport, the pilot should advise ATC of intentions no later than how many minutes after the void time if not airborne?
  • Within 51 miles from the NAVAID, the lateral separation for an aircraft on an established airway is measured from which feature?
  • One thousand feet of vertical separation is required at and below which flight level?
  • In space 28 notation, the abbreviation 'H' indicates clearance to which action?
  • Which instance requires including direction of turns in a holding clearance?
  • Which of the following are among the terms in which fixes or waypoints are defined?
  • What is the correct phraseology to assign one one thousand to an en route aircraft currently at nine thousand?
  • Under automated data transfer, proposed departures less than 15 minutes flying time to the receiving facility require coordination.
  • When relaying clearances through a non-ATC facility, who should be referenced in the clearance to include ATC?
  • What does the hold for release phrase 'expect (time in hours and/or minutes) departure delay' indicate?
  • What is the standard minimum lead time for flight progress data before entering the receiving facility's area?
  • East of MLU VORTAC, the degree of divergence between V18 and V417 is approximately how many miles?
  • A Monroe ATCT nonradar departure entering the center's airspace must NOT be cleared above 6,000 ft until it is established on the ARTCC-assigned route.
  • What action must be taken before an aircraft under your control enters airspace delegated to another controller?
  • If approach control service is NOT provided, altimeter setting is to be issued approximately how many miles from the destination airport?
  • When unable to approve a pilot's request for deviation from the filed flight plan, the controller should ________.
  • Which statement about the Preferential Departure Route (PDR) is true?
  • Which of the following is a specific departure route from an airport or terminal area to an en route point where there is no further need for flow control?
  • What is the correct sequence for assigning an altitude when issuing initial departure instructions?
  • Under what condition can communications transfer instructions be omitted?
  • Which statement describes Aero ARTCC's role in Jackson nonradar procedures after coordination?
  • What does the clearance 'Maintain block one five thousand through one seven thousand' instruct the aircraft to do?
  • N281, a Piper Apache, is requesting clearance from Jackson to Greenville via V74. What are the correct altitudes for this flight?
  • In a non-charted holding clearance, which item identifies the starting point of the hold?
  • When conditions such as weather, equipment states, potential sector overloads, emergency situations, and special flight operations may affect sector operations, a controller should notify whom?
  • The size of the protected airspace of a holding pattern varies according to which factors?
  • When must coordination be accomplished if an aircraft is landing at an airport served by a nonapproach control tower?
  • Deviation from LOA procedures must be coordinated with which party?
  • N74Y has been cleared to descend from 8,000 feet to 4,000 feet at pilot's discretion. A higher aircraft may be assigned 8,000 feet when N74Y reports ________ feet.
  • Under what condition is the transition included with a SID?
  • What is provided to all aircraft operating under IFR in controlled airspace?
  • The hold for release instruction uses the 'expect' phrase to indicate what unit for the departure delay?
  • Automation procedures should be used in preference to non automation procedures when
  • When anticipating an altitude change, inform the aircraft ________ or ________.
  • Which step is first in the correct sequence for altitude when issuing initial departure instructions?
  • Which phrase correctly indicates that visual separation is approved between two specified IFR aircraft?
  • When departing from an airport located in Class G (uncontrolled) airspace, what should NOT be specified after takeoff as part of the departure clearance?
  • What action must be taken if you delay or intend to delay aircraft?
  • Which route type is designated as RNAV and published for U.S. use?
  • Under Greenwood FDIO operations, the forwarding rule for arrival information is best captured by which statement?
  • What is the minimum vertical separation required for aircraft operating above FL290 from the upper or lower limits of active Special Use airspace or ATC Assigned Airspace?
  • When a delay is expected, holding instructions should be issued at least ____ minutes before the aircraft reaches the clearance limit fix.
  • In the Monroe nonradar departure scenario, what altitude must not be exceeded before establishment of the ARTCC route?
  • When aircraft fly the same course initially and you authorize 2 minutes of separation, courses must diverge with ____ after takeoff.
  • Using the 22-knot rule, the minimum longitudinal separation is which of the following?
  • Action should be taken to obtain a position report that affects separation no later than ________ minutes after the aircraft was estimated to pass the fix
  • N12B, at 6,000 feet, has been cleared for approach. The earliest an altitude of 6,000 feet can be assigned to another aircraft is when N12B reports ________.
  • If automated data transfer is not used, proposed departures must be coordinated if they are less than how many minutes flying time from the receiving facility's boundary?
  • When the assigned altitude in a previously issued clearance is amended, the controller must restate the _________.
  • Aircraft may be cleared to hold over different fixes at the same altitude if what condition is met?
  • Regarding minimum fuel, what is the controller's primary obligation?
  • If no delay is expected, when should clearance beyond the fix be issued?
  • An aircraft has reported at other than the assigned altitude. This would be indicated on the flight strip by the reported altitude....
  • When an aircraft is landing at an airport near the common boundary in an adjacent center's airspace, the controller must ______.
  • Which elements are included in the correct initial radio contact format?
  • An "X" is used to delete what type of information on a flight progress strip?
  • How are fixes or waypoints defined in relation to NAVAIDs?
  • The normal clearance limit specified in a departure clearance is
  • For the designated fix pairs, how are altitudes precoordinated for northbound versus southbound?
  • At airports where air traffic control service is provided, specify, as needed, what?
  • The phraseology to reroute an aircraft via Victor Five New Hope without changing the remainder of the route is _________.
  • Which of the following best describes a missed approach?
  • When delays are in progress and aircraft elect to hold on the ground, in what order should departure clearances be issued?
  • The phraseology to clear a pilot for a particular approach is 'CLEARED ________.'
  • If a pilot is unable to accept a clearance ________.
  • Which component of the initial radio contact is optional if there is no message to send?
  • To determine a distance for lateral separation when the degrees divergence falls between two values listed in the divergence table, you should:
  • Forward position reports if the time differs from the estimate by more than which number of minutes?
  • Authorization by ATC for a pilot to conduct an instrument approach is an...
  • Two converging aircraft with a 15-degree divergence from a VOR lose separation at approximately how many miles from the VOR?
  • Controllers should transmit only those messages that are necessary for air traffic control and __.
  • Vertical separation is applied between aircraft experiencing severe turbulence by ________.
  • A pilot in flight reports the loss of all low frequency navigational receiving capability. In this situation the controller should ________.
  • The aeronautical data which is required to execute an instrument approach to an airport is a(n) ________.
  • Actual departure time need not be forwarded if it is within how many minutes of the assumed departure time?
  • When a pilot reports a NAVAID is NOT operating properly, the controller should ________.
  • IFR departure clearance compatibility may be verified by asking the pilot if items obtained/solicited will allow the pilot to comply with obstruction avoidance, local traffic pattern, or ________.
  • Which interphone message has the highest priority?
  • The minimum vertical separation required above FL410 through FL600 is ______ ft
  • Why is it important that interphone messages are limited to those necessary for air traffic control?
  • What is the phraseology to determine the altitude of an aircraft if it is known to be operating below the lowest usable flight level?
  • Which action is correct when a flight progress strip is no longer needed for control use?
  • Which clearance must be issued only after an aircraft is established on a segment of a published route or an instrument approach procedure, or has been assigned an altitude to maintain until established on a segment of a published route or an instrument approach procedure?
  • A maneuver conducted by a pilot when an instrument approach cannot be completed to a landing is a(n) ________.
  • When a pilot declares 'minimum fuel', the controller should...
  • Which is not a situation that would be given first priority?
  • What is the phraseology to assign a higher altitude?
  • How many times must an altimeter setting be issued to an en route aircraft operating below FL180 while it is in your area of jurisdiction?
  • If holding instructions have been issued to an arriving aircraft, the controller must
  • What is the correct phraseology for issuing the Jackson altimeter setting 30.12?
  • The red direction arrows serve to indicate traffic movement between which two directions?
  • How many times must an altimeter setting be issued to an en route aircraft operating below FL180 within your area of jurisdiction?
  • The symbol "D" in space 27 of a flight progress strip indicates an aircraft has been cleared to...
  • The protected airspace of a holding pattern must NOT do what in relation to an airway?
  • Which statement best describes the meaning of 'Maintain block one five thousand through one seven thousand'?
  • When a route or altitude in a previously issued clearance is amended, which action should you take?
  • Which of the following is the correct radio message format to initiate an initial radio contact with an aircraft?
  • Which of the following is an appropriate instruction when an altitude change is anticipated and coordination with another facility is required?
  • In the example where N1234N is descending from 12,000 feet to 6,000 feet, to what altitude is N1234N descending?
  • Prior to issuing a clearance for a departure from Class E airspace with no ATC service, what must be obtained?
  • After a clearance containing IMMEDIATELY or EXPEDITE, the controller should ________ if time permits.
  • Nonradar separation should be used in preference to radar separation when an operational advantage is realized.
  • Which of the following is an Area Navigation (RNAV) route published for use in the US?
  • A series of predetermined maneuvers for the orderly transfer of an aircraft under instrument flight conditions from the beginning of the initial approach to a landing or to a point from which a landing may be made visually is a(n) ________.
  • Three circumstances that allow controllers to assign an inappropriate altitude for direction of flight are
  • East of MLU VORTAC, the divergence between V18 and V417 is approximately how many miles?
  • When an airborne aircraft changes its destination, forward the information to the which facility?
  • When a SID is assigned, the transition is included if ________.
  • When describing the direction of a holding pattern, which terms describe acceptable directions?
  • What does PDR stand for?
  • A release time may be issued to specify what?
  • The term "ATC" should be included in clearances relayed through a(n) _________.
  • What is the correct sequence for issuing holding instructions for a non charted holding pattern to an aircraft?
  • Between the 44-knot and 22-knot rules, which rule requires greater longitudinal separation?
  • What two words may be used to interrupt a lower priority interphone message?
  • When must arrival information be forwarded to an approach control facility?
  • For an abbreviated departure clearance to be valid, which condition regarding ATC facilities must be true?
  • The red direction arrows in space 23 can be used to determine which type of traffic?
  • How should formation flights be controlled?
  • In nonradar procedures at Jackson ATCT, arriving aircraft must not be cleared beyond the clearance limit until they are at or below which altitude?
  • N1234A has been issued a descent clearance from 12,000 feet to cross MHZ VORTAC at 6,000 feet. N4567B is at 14,000 feet. N4567B may be assigned 10,000 feet when N1234A reports leaving ________ feet.
  • Using the 44-knot rule, the minimum longitudinal separation is which of the following?
  • When issuing a clearance void time at a non-towered airport, what should you request the pilot to do?
  • In a non-charted holding clearance, which item defines the leg length?
  • Which statement describes the permitted altitude operation under a block clearance?
  • The designated space on the flight progress strip for the Mode 3/A beacon code is...
  • What is the correct phraseology for the hold for release instructions?
  • Which statement correctly describes the circled altitude on the flight strip?
  • Which document contains the Instrument Approach Procedure (IAP) data used for instrument approaches?
  • The correct phraseology for issuing a clearance to an aircraft utilizing an airway above/below its route structure is
  • Which of the following is an example of phraseology to obtain altitude reports?
  • Which of the following best describes coordinating before entering airspace with another controller?
  • Give first priority to...
  • When a clearance is amended, which statement best describes the controller's action regarding restrictions?
  • What is the phraseology to authorize a non-approach control tower to provide visual separation between arriving and departing IFR aircraft?
  • In a non-charted holding clearance, which item identifies the airway or route on which to hold?
  • Clearance to hold over different fixes at the same altitude is permissible when what condition is met?
  • Which option correctly identifies what space 27 is used for in relation to the Mode 3/A beacon code?
  • In the same example, what is the altitude of N4567B?
  • A red W on a flight progress strip indicates all of the following EXCEPT _____.
  • An aircraft operating at FL310 is cleared to 12,000 feet. The altimeter setting should be issued for the weather reporting station nearest to which location?
  • When is a controller authorized to issue the approach clearance according to standard procedures?
  • Aircraft assigned V9, V555, V557, and J35 or the following fix pairs, SQS/MCB, MHZ/MCB, HAZAL/MCB, or RICKS/MCB must be assigned altitudes that have been precoordinated as __________ northbound and __________ southbound.
  • What does a horizontal arrow in Space 20 indicate?
  • DME/ATD procedures and minima are to be used only when which condition is met?
  • The instructions to an aircraft that the pilot make communications transfer at a specified time, fix, or altitude may be omitted when ________.
  • If you cannot approve a pilot's deviation request and time permits, what should you do?
  • Aircraft operating at or below FL290 must be vertically separated from the upper/lower limits of active Special Use or ATC Assigned Airspace by at least....
  • In the N74Y scenario, a higher aircraft may be assigned 8,000 feet when N74Y reports ________ feet.
  • The rule for applying vertical separation between military aircraft conducting aerial refueling and other traffic is: ________.
  • Identify the correct phraseology for assigning more than one altitude
  • Which statement best describes the action when another aircraft vacates the altitude and a new altitude is to be assigned under vertical separation rules?
  • Prior to including direction of takeoff in a clearance issued to an aircraft departing an airport within Class E airspace where ATC service is NOT provided, the air traffic controller must ________.
  • Which group of items would be forwarded to a non approach control tower?
  • The lateral separation provided for an aircraft on an established airway or route and within 51 miles from the NAVAID is how many miles on each side of the centerline?
  • During En Route FDP operations, forward flight plan information should be forwarded to the appropriate ATC facility, FSS, or ______.
  • Flight progress data must be passed at least how many minutes before the aircraft enters the receiving facility's area?
  • What is the phraseology to confirm altitude information for an aircraft in level flight?
  • Deviation from the procedures established in the Aero ARTCC and Jackson ATCT LOA may be made only after coordination.
  • Control formation flights as...
  • A12468 is requesting clearance from Jackson to Baton Rouge via V245. What are the correct altitudes for this flight?
  • When making route assignments, use airways and routes consistent with the _________.
  • Which statement best describes the relationship between holding pattern protected airspace and an airway?
  • Terminate all interphone messages with...
  • Nonradar procedures for Jackson ATCT state that Aero ARTCC, after coordination, will assume responsibility for control of air traffic at and above 6,000 ft.
  • To provide minimum vertical separation (when pilots are NOT executing pilot's discretion descent), assign an altitude ________.
  • Either ARTCC (Aero or Houston) may clear an aircraft to operate at an IAFDOF after __________.
  • What is the phraseology to release N123 two minutes after N65K?
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