Aircraft transmitter and DME ground station are transmitting on different frequencies.

 

2                   

reflections are subject to doppler frequency shift.

 

3                   

DME pulse recurrence rates are varied.

 

4                   

DME transmits twin pulses.

 

Вопрос 144

The indicated range from a DME station is:

 

 

Ответы

1                   

ground range only if the beacon is co-located with VOR.

 

2              

Slant range.

 

3                   

ground range.

 

4                   

0 when passing overhead the station.

 

Вопрос 145

Why is it necessary to use different frequencies for the airborne and ground equipment of a DME is:

 

 

Ответы

1              

To prevent that DME interrogation pulse pairs being received by the aircraft after reflection on the earth

 

2                   

that side lobes can be suppressed by the Side Lobe Suppressor (SLS).

 

3                   

to avoid second trace returns when a DME is more than 200 NM away.

 

4                   

that more DME frequencies are available for different beacons.

 

Вопрос 146

Every 20 kts decrease in ground speed, on a 3° ILS glide path, will require an approximate:

 

 

Ответы

1                   

increase in the aircraft's rate of descent of 100 ft/min.

 

2              

Decrease in the aircraft's rate of descent of 100 ft/min.

 

3                   

decrease in the aircraft's rate of descent of 50 ft/min.

 

4                   

increase in the aircraft's rate of descent of 50 ft/min.

 

Вопрос 147

A VOR is situated at the far end of a runway on which an aircraft is making an ILS approach. Nav 1 is switched to the localiser frequency and

 

Nav 2 to the VOR frequency. At the moment that the needle of # 1 indicator reaches the outer dot the deflection of the needle of # 2 indicator

 

will be at:

 

 

Ответы

1              

Approximately a quarter of the scale.

 

2                   

approximately three quarters of the scale.

 

3                   

approximately halfway the scale.

 

4                   

the outer dot.

 

Вопрос 148

Middle marker of an ILS facility is identified audibly and visually by a series of:

 

 

Ответы

1                   

dashes and an amber light flashing.

 

2              

Alternate dots and dashes and an amber light flashing.

 

3                   

two dashes per second and a blue light flashing.

 

4                   

dots and a white light flashing.

 

Вопрос 149

ILS Cat II equipment will permit instrument approaches down to:

 

 

Ответы

1                   

DH 100 ft, RVR 150 m.

 

2                   

DH 50 ft, RVR 200 m.

3              

DH 100 ft, RVR 300 m.

 

4                   

DH 150 ft, RVR 400 m.

 

Вопрос 150

Glide Path antenna is located on the side of the runway approximately:

 

 

Ответы

1                   

300 m from the far end of the runway.

 

2                   

200 m beyond the ILS reference point.

 

3                   

200 m before the threshold.

 

4              

M beyond the threshold.

 

Вопрос 151

ILS marker with an aural frequency of 3000 Hz is:

 

 

Ответы

1              

Inner marker (if available).

 

2                   

middle marker.

 

3                   

outer marker.

 

4                   

centreline marker.

 

 

Вопрос 152

Outer marker beacons of an ILS transmit at:

 

 

Ответы

1                   

150 MHz.

 

2                   

90 MHz.

 

3                   

75 Hz.

 

4              

MHz.

 

Вопрос 153

The UHF band is assigned to the:

 

1) Glide path

 

2) Localiser

 

3) Outer marker

 

4) Locator

 

The combination that regroups all the corrects statements

 

 

Ответы

1                   

1,3

 

2              

1

 

3                   

3,4

 

4                   

4

 

Вопрос 154

ILS marker identified audibly by a series of two dashes per second is the:

 

 

Ответы

1                   

inner marker.

 

2                   

middle marker.

 

3                   

locator.

 

4              

Outer marker.

 

Вопрос 155

An aircraft is carrying out an ILS approach. It is receiving a localiser signal with 150 Hz and 90 Hz modulations. Which of the following

 

statements is correct?

 

 

Ответы

1                   

When both modulations are received, the aeroplane will be on the center line.

 

2                   

The 150 Hz modulation predominates to the right of the center line.

 

3              

The 90 Hz modulation predominates to the left of the center line.

 

4                   

If the 150 Hz modulations predominates, the needle on the CDI moves to the right of center.

 

Вопрос 156

Instrument Landing System uses the following wavelengths:

 

 

Ответы

1              

Metric

 

2                   

decimetric

 

3                   

centimetric

 

4                   

hectometric

 

Вопрос 157

When flying overhead the inner marker (if available) on an ILS approach the color of the flashing light will be:

 

 

Ответы

1                   

blue.

 

2                   

green.

 

3                   

amber.

 

4              

White.

 

Вопрос 158

Use the 1:60 rule to determine the approximate height of an aircraft 2.5 NM from touchdown on a 2,9° glide slope:

 

 

Ответы

1              

Ft

 

2                   

825 ft

 

3                   

880 ft

 

4                   

840 ft

 

Вопрос 159

ILS receiver of an aircraft on approach and flying on the left of the exact runway centreline will receive:

 

 

Ответы

1              

Less of the 150 Hz localiser signal than the 90 Hz localiser signal.

 

2                   

more of the 150 Hz localiser signal than the 90 Hz localiser signal.

 

3                   

the modulation from both lobes at equal amplitude.

 

4                   

the left lobe modulation only.

 

 

Вопрос 160

All ILS marker beacons transmit at:

 

 

Ответы

1              

MHz.

 

2                   

150 MHz

 

3                   

It depends on the modulating frequency.

 

4                   

90 MHz

 

Вопрос 161

Sensitive area of an ILS is the area vehicles or taxiing aircraft may not enter when:

 

 

Ответы

1                   

ILS operations are in progress.

 

2                   

the ILS is undergoing calibration.

 

3              

Category ll/lll ILS operations are in progress.

 

4                   

category I ILS operations are in progress.

 

Вопрос 162

What approximate rate of descent is required in order to maintain a 3° glide path at a ground speed of 80 kts?

 

 

Ответы

1                   

550 ft/min.

 

2                   

650 ft/min.

 

3              

Ft/min.

 

4                   

450 ft/min.

 

 

Вопрос 163

Audio frequency modulation of the outer marker shall be keyed as follows:

 

 

Ответы

1