1. Primary Radar is

Interrogation of aircraft’s transponder Reflected signal from aircraft’s own radar For ground use only

2. The general function of the ATC is to

Interrogate other aircraft which reply with an identification signal Reply with an identification signal after being interrogated by a ground station Interrogate the ground station which replies with an identification

3. ACARS is primarily used for communicating with

Other aircraft Air traffic control Maintenance base

4. The tone frequencies for glideslope and localizer are

1300 Hz and 3000 Hz 1030 Hz and 1090 MHz 90 Hz and 150 Hz

5. Radar resolution is the ability to determine between

Two targets in close proximity to each other Fast moving targets Vague targets

6. SELCAL is used to

Alert ground stations Alert other aircraft Monitor ground signals

7. A frequency of a wave is measured on the

Full wavelength Quarter wavelength Half wavelength

8. Autopilot ‘Go-Around’ mode is normally engaged by actuating a switch mounted on the

Mode selector panel, designation as ‘GA’ Engine power lever Control wheel

9. HF communication frequency is in the range

23-30 kHz 3-30 MHz 108-118MHz

10. An autopilot servo motor is often fitted to a mounting plate to

Enable easy access Allow electrical measurement to be taken from test points Enable motor replacement without disturbing flight control system

QUESTION 2

1. The polythene sleeving over a HF antenna is to stop

Precipitation static Lightning strike Moisture ingress and corrosion

2. The term HIRF means

High intensity radiated fields High intensity radio fields High interference radiated fields

3. Frequency

Has no relationship to wavelength Is inversely proportional to wavelength Is directly proportional to wavelength

4. When an autopilot is Fail Passive

The pilot must resume control and land the aircraft The autoland can continue The aircraft reverts to fail operational autopilot

5. The fundamental theory of operation of a ranging radar is

Percentage of emitted signal returned Time taken to receive returns Frequency of returns

6. On an aircraft communication system, HIRF interference is most prominent

Across the whole frequency spectrum At specific frequencies During transmission only

7. What clock is used in a GPS satellite?

Atomic Quartz Clock with battery

8. An ILS system consist of

Marker beacon only Localizer, glideslope and marker beacon Localizer, glideslope, marker beacon and VOR

9. With control wheel steering (CWS), if the flight path is disturbed by the pilot, the course will be corrected by the

Normal flight control Flight director input Autopilot panel

10. The glideslope in an ILS provides

Vertical references Vertical references and horizontal directional references Horizontal directional references

QUESTION NO 3.

1. An HF coupling is used to match the

Aerial Receiver Boom-set (headphones and mic)

2. The frequency of glideslope transmitter is

328.6 to 335.4 Hz 328.6 to 335.4 MHz 328.6 to 335.4 KHz

3. Which of the following is a DME frequency?

1100 MHz 4300 MHz 9345 Mhz

4. On an aircraft’s navigation display, distance measuring equipment gives

Slant range to beacon Height and range to beacon Ground range to beacon

5. A strapdown INS has

A solid state accelerometer system Both solid state and normal accelerometer Moving parts

6. On a modern aircraft flight instrument display system, radio deviation is shown on the

EHSI EHSI & EADI EADI

7. Marker beacon receivers have

Two control units; one on captain side and the other on co-pilot side One control unit No control unit as the unit typically turns on when the avionics master switch is activated

8. On a flight management system, the database is updated every

1 Month 2 Month 3 Month

9. In a GPS system what type of clock is in the receiver?

Quartz Atomic Battery

10. The polled mode in an ACARS

Allow the flight crew or airborne equipment to initiate communication Both operates when interrogated by the ground facility and allows the flight crew or airborne equipment to initiate

communication Operates only when interrogated by the ground facility

QUESTION NO 4

1. An airways marker is what colour?

Blue White

Amber

2. What is the purpose of the autopilot?

To reduce the flight crew’s workload To enable the aircraft to land in bad weather To relieve the flight crew of their duties during long

3. An IRS cannot calculate

Local latitude or longitude Local longitude Local latitude

4. On the ATC radio readability scale, what is satisfactory reception?

1 5 3

5. ACARS system operates in the frequency range of

121.550 MHz 131.550 MHz 131.550 Hz

6. In a MCDU, the flight deck effect is

The sudden irregular reading causing to an instrument Impact of irregular reading to the flight crew Any EICAS display or discrete annunciator to inform the flight crew of an in-flight fault

7. An ADF system includes

Both a sense and loop antenna A sense antenna A loop antenna

8. A category 2 landing RVR is

800m 400m 200m

9. Alpha range is applicable to

Auto-throttle High speed flight Anti-skid system

10. Autopilot servo brake is energized

At the same time as the clutch To actuate off To actuate on

QUESTION 5.

1. There are two FMS in an aircraft, which are

Master and slave Independent of each other Working together

2. If one FMS fails in flight

The whole FMS system is inoperative The standby FMS takes over The operation of the aircraft is hampered

3. How long does GPS ephemeris collection take?

300 ms 30 minutes 30 seconds

4. Frequencies used for a MICRO WAVE LANDING SYSTEM are

5 – 5.1 MHz 5 – 5.1 GHz 5 – 5.1 KHz

5. After passing the zone of confusion of a VOR

The phase difference stays the same The phase difference is 90 degrees out The phase difference reverses

6. Where is the antenna located for watching

On the fuselage roof Near the wingtips, away from the cabin In the stabilizer tip

7. FMC auto tunes

VOR & DME DME & ADF VOR & ADF

8. Which category are hand microphones considered essential?

Heavy passenger aircraft Aerial work aircraft Light aircraft

9. Emergency frequency is

123.5 MHz 121.5 MHz 125.5 MHz

10. An ADF system used on aircraft includes the

Sense and loop antennas Marker beacons VHF transmitters

QUESTION 6.

1. The glideslope indicator needle is

Horizontal Vertical Inclined depending on the angle of descent

2. GPS receiver Navigation Message frequency is

50 Hz 15 KHz 22 MHz

3. In a servo loop, an LVDT provides

Position feedback Either rate or position feedback Rate feedback

4. What device is used on the loop antenna prevent degree of ambiguity

Integrator Sense antenna Pre-selector

5. Microwave Landing System operates on what frequency?

4000 - 4300 MHz 5000 – 6000 MHz 5031 – 5090.7 MHz

6. 121.5 MHz is what frequency?

VHF ILS VOR

7. Transmitter aerials radiate

Electrostatic and electromagnetic energy Electromagnetic energy only Electrostatic energy only

8. 112.1 MHz is what frequency?

VOR UHF ILS

9. Accuracy of a GPS system used in aircraft navigation system is

32 +/- 10 meters 100 meters 16 meters or less

10. When turbulence mode is selected, which other mode will not be available?

ALT Hold VOR Heading Hold

QUESTION 7

1. During initialization, INS uses to calculate local vertical

Laser gyro and accelerometers Laser gyros only Accelerometers only

2. Priority messages in an aircraft centralized warning system, go in order of (lowest to highest):

GPWS, WINDSHEAR, TCAS TCAS, GPWS, WINDSHEAR

TCAS, WINDSHEAR, GPWS

3. On a fiberglass aerial, what paint should be used?

Cellulose only Not cellulose Polyurethane

4. An aircraft with 8.33 KHz separation VHF communication system communicates using

Single channel duplex Dual channel simplex Single channel simplex

5. Attenuation of ground waves

Is not affected by frequency Increases with frequency Decreases with frequency

6. Full scale deflection of the glideslope pointer from the centerline is

0.5 degrees 2.5 degrees 3 degrees

7. The ARINC Communication Addressing and Reporting System uses which frequency band?

SHF HF VHF

8. On a back beam approach, which error signal would be used?

Localizer Heading Glideslope

9. 111.2 MHz is

VHF ILS VOR

10. The autopilot disconnect indications are

Steady master warning light and an aural Flashing master warning light and an aural Flashing master warning light only