When ADF equipment which incorporates a sense aerial and a loop aerial is tuned to a NDB and the loop aerial is rotated so that a sharp null is found the aerial is:

in line with the incoming signals

either at right angles or in line with the incoming signals

at right angles to the incoming signals

An aircraft heading 315oM shows an NDB bearing 180o on the RMI. Any quadrantal error affecting the accuracy of this bearing is likely to be:

zero, as quadrantal errors are not found on the RMI

zero, as quadrantal errors affect only the VOR

An aircraft 10 nm from a north-south coastline takes two three-position line fixes from an inland NDB. The aircraft's indicated position is:

Nearer to the coastline than its actual position

Further from the coastline than its actual position

Correct because the coastal refraction errors will cancel out because two fixes have been taken

Correct in azimuth but false in range

is used to make the ident from an A1A NDB audible

creates the audio ident for an NDB

is used to make the ident from an A2A NDB audible

is used to determine the signal strength of an NDB

With regard to the following types of NDB which statements is correct?

Locators have 15 W power, 10-25 nm range and are N0N A2A

Locators have 200 W power, 50 nm range and are N0N A2A

Locators have 5000 W power, 50 nm range and are N0N A2A

Locators have 5000 W power, 50 nm range and are N0N A1A

An NDB aerial is (i) so as to ensure the range is (ii) by minimising (iii) due to (iv):

(i) vertical; (ii) maximum; (iii) attenuation; (iv) energy losses to the surface

(i) horizontal; (ii) maximum; (iii) diffraction; (iv) the ground wave

(i) horizontal; (ii) maximum; (iii) refraction; (iv) the D layer

(i) vertical; (ii) maximum; (iii) attenuation; (iv) atmospheric refraction

If an NDB signal is received at a range of 1000 nm

It is a sky wave and is inaccurate

The signal is a surface wave and is quite usable

It will be a ground wave and will be inaccurate

It is a space wave and will be inaccurate

If an NDB has a published range of 30 nm, its accuracy is:

"only guaranteed by day to that range"

The signal to noise ratio for an NDB is ___ allowing a maximum error of ___ on 95% of occasions during

3/1, ±5 degrees, daylight hours only

5/1, ±3 degrees, daylight hours only

When is coastal error at its worst for an aircraft at low level?

Beacon inland at an acute angle to the coast

Beacon close to the coast at an acute angle to the coast

Beacon close to the coast at 90o to the coast

An aircraft over the sea is receiving a signal from an NDB 50nm from the coast and another from an NDB 20nm from the coast. Which of the following statements is most correct?

The bearing information from the beacon 20nm inland would be most correct

The bearing information from relative bearings of 90o and 270o would be most correct

The bearing information from relative bearings of 360o and 180o would be most correct

The bearing information from the beacon 50nm inland would be most correct

The purpose of the BFO switch on the ADF receiver is to:

improve the strength of the received signal

An ADF uses a sense aerial to:

detect the receiver test signal

An aeroplanes RMI shows an NDB bearing 070o, w/v calm. The aeroplane is to join a right hand holding pattern at the NDB, the inbound leg of which is 330o. The aeroplane should:

fly to the NDB and join the pattern

fly to the NDB then fly outbound on 150o for 1 minute

fly to the NDB then fly a teardrop with an outbound heading of 120o for 1 minute and a rate one turn to join in bound

fly to the NDB then fly choose either (B) or (C) above as preferred

Rnav NDB AND ADF

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Using an NDB it is possible to experience which of the following errors or limitations?

Coastal refraction, timing error and night effect

Night effect, station interference and latitude error

Night effect, station interference and lack of a failure warning system

Coastal refraction, timing error and lack of a failure warning system

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following are all errors associated with ADF:

selective availability, coastal refraction, night effect

night effect, quadrantal error, lane slip

mountain effect, station interference, static interference

selective availability, coastal refraction, quadrantal error

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What gives the greatest error in ADF:

Coastal effect

Night effect

Static interference from thunderstorms

Quadrantal error

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which combination gives the greatest reduction in reliability of ADF:

Station interference; Static interference; Lane slip

Mountain effect; Station interference; site error

Night effect; Static interference; Quadrantal error

Nigh effect; Quadrantal error; Station interference

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following may cause inaccuracies in ADF bearings?

static interference, height effect, lack of failure warning

station interference, mountain effect, selective availability

coastal refraction, slant range, night effect

lack of failure warning, station interference, static interference

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

With a transmission from an NDB aerial, the _ component travels in the _ plane and the signal is ___ polarised.

magnetic; horizontal; vertically

electrical; horizontal; vertically

electrical; vertical; horizontally

magnetic; vertical; horizontally

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When receiving an NDB signal on an ADF receiver the BFO can be selected OFF for the:

tone signal on N0NA1A

ident signal on N0NA1A

tone signal on N0NA2A

ident signal on N0NA2A

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Rnav NDB AND ADF

Using an NDB it is possible to experience which of the following errors or limitations?

Which of the following are all errors associated with ADF:

What gives the greatest error in ADF:

Which combination gives the greatest reduction in reliability of ADF:

Which of the following may cause inaccuracies in ADF bearings?

With a transmission from an NDB aerial, the _ component travels in the _ plane and the signal is ___ polarised.

When receiving an NDB signal on an ADF receiver the BFO can be selected OFF for the:

When considering the propagation of ADF transmissions night effect is most pronounced:

An NDB signal crossing from land to sea will _ speed and bend _ the normal

When ADF equipment which incorporates a sense aerial and a loop aerial is tuned to a NDB and the loop aerial is rotated so that a sharp null is found the aerial is:

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Rnav NDB AND ADF

Using an NDB it is possible to experience which of the following errors or limitations?

Which of the following are all errors associated with ADF:

What gives the greatest error in ADF:

Which combination gives the greatest reduction in reliability of ADF:

Which of the following may cause inaccuracies in ADF bearings?

With a transmission from an NDB aerial, the ___ component travels in the ___ plane and the signal is ___ polarised.

When receiving an NDB signal on an ADF receiver the BFO can be selected OFF for the:

When considering the propagation of ADF transmissions night effect is most pronounced:

An NDB signal crossing from land to sea will ___ speed and bend ___ the normal

When ADF equipment which incorporates a sense aerial and a loop aerial is tuned to a NDB and the loop aerial is rotated so that a sharp null is found the aerial is:

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Popular Resources on Wayground

With a transmission from an NDB aerial, the _ component travels in the _ plane and the signal is ___ polarised.

An NDB signal crossing from land to sea will _ speed and bend _ the normal