KCAA Instrument Rating (IR) Theoretical Knowledge Examination (Kenya)

According to the Civil Aviation (Personnel Licensing) Regulations in Kenya, what is the validity period of an Instrument Rating (IR) when issued or renewed?

• A12 months
• B24 months
• C36 months
• D60 months

To meet the recent experience requirements to act as pilot-in-command (PIC) of an aircraft under IFR, a pilot must have performed how many instrument approaches in the preceding 90 days?

• A3 instrument approaches
• B6 instrument approaches
• C10 instrument approaches
• DThere are no specific approach requirements as long as a flight test was passed within 12…

What is the standard Transition Altitude (TA) within the Nairobi Terminal Control Area (TMA) in Kenya?

• A9,000 feet QNH
• B5,000 feet QNH
• C10,000 feet QNH
• DFL180

Which of the following describes the 'Transition Level' in altimeter setting procedures?

• AThe lowest usable flight level above the transition altitude
• BThe altitude below which vertical position is reported as flight levels
• CA constant altitude of 10,000 feet MSL
• DThe level at which the altimeter must be set to the local QFE

When flying under IFR outside controlled airspace in Kenya (Class G), what cruising levels must be maintained according to the semicircular rule?

• AOdd thousands of feet on magnetic tracks 000-179, and even thousands of feet on tracks 18…
• BEven thousands of feet on magnetic tracks 000-179, and odd thousands of feet on tracks 18…
• COdd thousands plus 500 feet on magnetic tracks 000-179, and even thousands plus 500 feet…
• DThere are no specific flight levels required outside controlled airspace under IFR

Under IFR, unless otherwise authorized by ATC, what is the minimum altitude for flight over mountainous terrain?

• A2,000 feet above the highest obstacle within 8 km of the estimated position of the aircra…
• B1,000 feet above the highest obstacle within 8 km of the estimated position of the aircra…
• C1,500 feet above the highest obstacle within 5 NM of the course centerline
• D2,000 feet above the mean sea level of the surrounding mountains

For non-mountainous terrain, what is the standard minimum obstruction clearance altitude under IFR?

• A1,000 feet above the highest obstacle within 8 km of the estimated position of the aircra…
• B500 feet above the highest obstacle within 5 km of the course
• C1,500 feet above the highest obstacle within 10 NM of the course
• DThere is no minimum altitude as long as the pilot is in radar contact

What is the maximum indicated airspeed for an aircraft operating below 10,000 feet MSL in Class C airspace in Kenya, unless otherwise authorized by ATC?

• A250 knots IAS
• B200 knots IAS
• C180 knots IAS
• DThere is no speed limit below 10,000 feet in Class C airspace

Which of the following statements is true regarding Class A airspace under KCAA regulations?

• AOnly IFR flights are permitted, and all flights are subject to ATC clearance and separati…
• BBoth VFR and IFR flights are permitted, but VFR flights are restricted to daytime only
• CIFR flights are separated from other IFR flights, but VFR flights must provide their own…
• DContinuous two-way radio communication is optional if in radar contact

At the flight planning stage, what are the standard alternate aerodrome planning minima for a destination airport with a precision approach procedure?

• ACeiling at or above 600 feet and visibility at or above 2.0 km (or 1.25 SM)
• BCeiling at or above 800 feet and visibility at or above 3.0 km
• CCeiling at or above 1,000 feet and visibility at or above 5.0 km
• DThe published landing minima of the precision approach apply without any addition

At the flight planning stage, what are the standard alternate aerodrome planning minima for an alternate airport served only by non-precision approach procedures?

• ACeiling at or above 800 feet and visibility at or above 3.0 km (or 2 SM)
• BCeiling at or above 600 feet and visibility at or above 2.0 km
• CCeiling at or above 1,000 feet and visibility at or above 5.0 km
• DCeiling at or above 400 feet and visibility at or above 1.5 km

To continue an instrument approach below the Decision Altitude (DA/DH) or Minimum Descent Altitude (MDA), which of the following is required?

• AThe pilot must have the runway environment or visual approach aids in sight, and the airc…
• BThe pilot must receive explicit visual landing clearance from the tower controller
• CThe flight visibility must be at least 5.0 km, regardless of the approach plate minima
• DThe autopilot must be disengaged below 500 feet AGL

What is the difference between Decision Altitude (DA) and Decision Height (DH)?

• ADA is referenced to Mean Sea Level (MSL), whereas DH is referenced to the threshold eleva…
• BDA is used for non-precision approaches, whereas DH is used for precision approaches
• CDA is measured in meters, whereas DH is measured in feet
• DDA is used only in the USA, while DH is used in Kenya

Under the airspace classification system adopted in Kenya, what is the designation of the Terminal Control Area (TMA) surrounding major airports like JKIA?

• AClass C airspace
• BClass A airspace
• CClass E airspace
• DClass G airspace

What is the standard altimeter setting (QNH) transition procedure when climbing through the Transition Altitude?

• AChange the altimeter setting from the local QNH to the standard pressure setting of 1013.…
• BChange the altimeter setting from standard pressure to the local QFE
• CKeep the local QNH until reaching the final cruising flight level
• DCross-check the radio altimeter against the GPS altitude and set 1000 hPa

If the pitot tube becomes blocked by ice but the drain hole remains open, what will the airspeed indicator show?

• AIt will drop to zero
• BIt will freeze at the current reading
• CIt will read higher than actual as altitude increases
• DIt will fluctuate wildly depending on engine RPM

If both the pitot tube inlet and its drain hole are blocked while the static port remains open, what behavior will the airspeed indicator display during a climb?

• AIt will act as an altimeter, overreading (indicating an increase in speed) as altitude in…
• BIt will drop to zero immediately
• CIt will act as an altimeter, underreading (indicating a decrease in speed) as altitude in…
• DIt will freeze at the speed at which the blockage occurred, regardless of pitch changes

What is the effect of a completely blocked static port on the altimeter and the Vertical Speed Indicator (VSI)?

• AThe altimeter will freeze at the altitude where the blockage occurred, and the VSI will r…
• BThe altimeter will read zero, and the VSI will show a continuous climb
• CThe altimeter will read higher than actual, and the VSI will behave normally
• DBoth instruments will continue to function normally using the pitot pressure

When the alternate static source is opened in an unpressurized aircraft cockpit, how are the flight instruments affected?

• AAltimeter reads slightly higher, VSI shows a temporary climb, and airspeed indicator read…
• BAltimeter reads slightly lower, VSI shows a temporary descent, and airspeed indicator rea…
• CThe altimeter freezes, the VSI reads zero, and the airspeed indicator reads zero
• DThere is no change in instrument readings as cockpit pressure matches outside air pressure

What is the definition of gyroscopic precession?

• AThe deflection of a spinning wheel's plane of rotation when a force is applied, occurring…
• BThe ability of a gyro to remain fixed in space regardless of the aircraft's attitude chan…
• CThe tendency of a gyroscope to rotate in the opposite direction of the engine crankshaft
• DThe automatic alignment of a gyroscope with the magnetic north pole

Which gyroscopic flight instrument displays rigidity in space as its primary operating principle?

• AAttitude Indicator
• BTurn Coordinator
• CTurn-and-Slip Indicator
• DMagnetic Compass

What is the primary indicator of a vacuum system failure affecting traditional steam-gauge gyroscopic instruments?

• ASluggish or erratic behavior of the attitude and heading indicators, accompanied by a low…
• BImmediate tumbling of the turn coordinator and VSI
• CA warning light on the PFD and loss of altimeter tape
• DThe artificial horizon will lock in a nose-up attitude

Why must a vacuum-driven directional gyro (heading indicator) be periodically reset to match the magnetic compass?

• AFriction in the gimbals and the earth's rotation cause the gyro to drift (precession) ove…
• BThe heading indicator is affected by changes in aircraft electrical load
• CThe magnetic compass is more stable in turbulent air than the gyroscope
• DThe gyro rotor must be realigned with the air filter intake

What information does a Turn Coordinator provide that a Turn-and-Slip Indicator does not?

• ARate of roll of the aircraft
• BRate of turn of the aircraft
• CDirection of the turn
• DQuality of the turn (slip or skid)

When turning from a northerly heading in the Northern Hemisphere (or in East Africa, where slight northern dip exists), what error does the magnetic compass display?

• AIt lags behind the actual heading, initially indicating a turn in the opposite direction
• BIt leads the actual heading, indicating a turn faster than actual
• CIt remains locked on North until the turn is completed
• DIt indicates the turn correctly without any lag or lead

What is the magnetic compass acceleration error (ANDS) when accelerating on an easterly or westerly heading in the Northern Hemisphere?

• AThe compass indicates a turn toward the North
• BThe compass indicates a turn toward the South
• CThe compass card spins rapidly clockwise
• DThe compass indicates a decrease in heading value

What is the difference between magnetic variation and magnetic compass deviation?

• AVariation is the angle between true and magnetic north; deviation is the error caused by…
• BVariation is caused by geographic location; deviation is caused by solar flares
• CVariation is corrected by realigning the gyro; deviation is corrected by adjusting the al…
• DThey are the same thing, with variation used in the USA and deviation used in Kenya

Why does magnetic dip increase as an aircraft flies closer to the earth's magnetic poles?

• AThe earth's magnetic flux lines curve downwards toward the poles, becoming vertical at th…
• BThe magnetic poles exert a stronger gravitational pull on the compass weight
• CThe compass fluid freezes, restricting horizontal movement
• DThe horizontal component of the earth's magnetic field becomes stronger than the vertical…

On an Electronic Flight Instrument System (EFIS), what is the indication of an Attitude Heading Reference System (AHRS) failure?

• AA red 'X' appears over the attitude indicator and heading display, accompanied by a loss…
• BThe airspeed indicator tape turns yellow and freezes
• CThe screen goes completely black, requiring a manual system reboot
• DThe autopilot automatically engages in 'Level' mode

What does a red 'X' over the altitude tape, airspeed tape, and Vertical Speed Indicator (VSI) on a PFD indicate?

• AA failure of the Air Data Computer (ADC)
• BA failure of the Attitude Heading Reference System (AHRS)
• CA complete electrical generator failure
• DA blockage of the engine oil pressure line

Under what weather conditions must a pilot file an alternate aerodrome on an IFR flight plan under KCAA regulations?

• AUnless the destination has a standard instrument approach and the weather forecast (ETA +…
• BFor every IFR flight plan, regardless of the forecast weather
• COnly when flying in Class G (uncontrolled) airspace
• DWhen the flight distance exceeds 50 nautical miles

What is the minimum fuel reserve required for an IFR flight in a propeller-driven aircraft under KCAA regulations?

• AFuel to fly to the destination, then to the alternate aerodrome, plus 45 minutes at norma…
• BFuel to fly to the destination, plus 30 minutes at holding speed
• CFuel to fly to the destination, then to the alternate, plus 30 minutes at normal cruise s…
• DFuel to fly to the destination, plus 45 minutes at normal cruise speed (if no alternate i…

For a turbojet aircraft flying under IFR, what is the standard fuel reserve requirement when an alternate is required?

• AFuel to fly to the destination, then to the alternate, plus fuel to hold for 30 minutes a…
• BFuel to fly to the destination, then to the alternate, plus 45 minutes at normal cruise s…
• CFuel to fly to the destination, plus 2 hours at holding speed
• DFuel to fly to the destination, plus 15% contingency fuel

Where should a pilot indicate Performance Based Navigation (PBN) capabilities (such as RNAV or RNP) on the standard ICAO Flight Plan form?

• AInsert 'R' in Item 10a (Equipment) and specify the PBN capability in Item 18 (Remarks) pr…
• BInsert 'PBN' in Item 9 (Number and Type of Aircraft)
• CInsert 'G' in Item 10a and write the aircraft serial number in Item 18
• DSpecify it only in the pilot's preflight logbook; it is not included in the ICAO flight p…

When entering a holding pattern, what is the angular sector limit for a Direct entry?

• A180 degrees
• B110 degrees
• C70 degrees
• D90 degrees

What is the angular sector limit for a Parallel holding entry?

• A110 degrees
• B180 degrees
• C70 degrees
• D120 degrees

What is the angular sector limit for a Teardrop holding entry?

• A70 degrees
• B110 degrees
• C180 degrees
• D90 degrees

Unless otherwise specified by ATC or on the approach chart, in which direction are turns made in a standard holding pattern?

• ATo the right (clockwise)
• BTo the left (counter-clockwise)
• CAlternating left and right turns to prevent pilot fatigue
• DDetermined by the direction of the prevailing wind

How should a pilot correct for wind drift on the outbound leg of a holding pattern?

• ADetermine the crab angle on the inbound leg and apply triple that angle in the opposite d…
• BFly the outbound leg on the same heading as the inbound leg
• CDouble the inbound crab angle on the outbound leg
• DAdjust airspeed by 10 knots rather than changing heading

What is the standard holding pattern timing for the inbound leg at or below 14,000 feet MSL?

• A1 minute
• B1.5 minutes
• C2 minutes
• DDetermined solely by DME distance

What is the key difference between a Minimum En-route Altitude (MEA) and a Minimum Obstruction Clearance Altitude (MOCA) on an airway?

• AMEA guarantees both obstacle clearance and navigation signal reception, whereas MOCA only…
• BMEA only guarantees obstacle clearance, while MOCA guarantees both clearance and navigati…
• CMEA is for jet aircraft, while MOCA is for propeller aircraft
• DThere is no difference; they are interchangeable terms

What is the standard minimum climb gradient required for a Standard Instrument Departure (SID) to ensure obstacle clearance, unless otherwise charted?

• A3.3% (200 feet per nautical mile)
• B5.0% (304 feet per nautical mile)
• C2.5% (152 feet per nautical mile)
• D1.5% (91 feet per nautical mile)

What is the primary function of a Standard Terminal Arrival Route (STAR) in IFR operations?

• ATo simplify clearance delivery and transition aircraft from the en-route structure to an…
• BTo guide aircraft visually to the runway threshold
• CTo provide a standard method for terrain clearance during a missed approach
• DTo define noise-abatement flight paths for departing jet aircraft

In flight planning, what is the Point of Safe Return (PSR)?

• AThe furthest point along a route to which an aircraft can fly and still return to the dep…
• BThe point where the aircraft reaches its optimum cruising altitude
• CThe final approach fix on an instrument approach where a go-around must be decided
• DThe point along a track where the time to proceed is equal to the time to return

What is the definition of the Point of Equal Time (PET) in flight monitoring?

• AThe point along a track from which it takes an equal amount of time to fly to either of t…
• BThe point where the flight duration equals the remaining fuel endurance
• CThe point where the pilot must switch from local QNH to standard altimeter setting
• DThe midpoint of the route based on ground distance

Which type of hypoxia is caused by a decrease in the partial pressure of oxygen in the atmosphere, such as during climbs to high altitude without supplemental oxygen?

• AHypoxic hypoxia
• BHypemic hypoxia
• CStagnant hypoxia
• DHistotoxic hypoxia

How does carbon monoxide (CO) poisoning affect the pilot's body, and which type of hypoxia does it cause?

• ACO binds with hemoglobin in the blood, preventing oxygen transport; it causes hypemic hyp…
• BCO blocks the alveoli in the lungs; it causes hypoxic hypoxia
• CCO slows the blood circulation; it causes stagnant hypoxia
• DCO prevents tissues from absorbing oxygen; it causes histotoxic hypoxia