MET Q16 - Turbulence and wind shear

Question 1

Under which of the following conditions is the most severe CAT likely to be experienced?
Select one:

1.A curved jet stream near a deep trough.

2.A jet stream with great spacing between the isotherms

3.A straight jet stream near a low pressure area

4.A westerly jet stream at low latitudes in the summ

Answer 1

1.A curved jet stream near a deep trough.

Question 2

A flight is to depart from an airport with runways 09 and 27. Surface wind is 270/05; an inversion is reported at 300 feet with turbulence and wind shear. The wind just above the inversion is 090/30. What is the safest departure procedure?

Select one:

a.Depart runway 27 with as steep an ascent as possible

b.Take-off is not possible under these conditions.

c.Depart runway 27 with maximum throttle during the passage through the inversion

d.Depart on runway 09 with a tailwind.

Answer 2

d.Depart on runway 09 with a tailwind.

Question 3

Which of the following is correct concerning rotors associated with mountain wave?

Select one:

a.The wind direction at the lower side of the rotors is opposite to the prevailing wind direction

b.The axis of these rotors is vertical

c.The wind direction at the top of the rotors is opposite to the prevailing wind direction

d.The rotors are always visible by the presence of rotor cloud

Answer 3

a.The wind direction at the lower side of the rotors is opposite to the prevailing wind direction

Question 4

Which degree of turbulence is described in ICAO as “moderate changes in aircraft attitudes and/or altitude but the aircraft remains in positive control at all times. Changes in accelerometer readings of 0.5 to 1.0g at the aircraft’s centre of gravity. Occupants feel a strain against seat belts. Food service and walking are difficult”?

Select one:

1.Moderate turbulence

2.Severe turbulence

3.Light turbulence

4.Severe chop

Answer 4

1.Moderate turbulence

Question 5

Up to what level is low level wind shear defined?

Select one:

1.2000 - 3000ft or 700 - 900m above aerodrome level

2.6500 ft or 2000m above aerodrome level

3.500ft or 150m above aerodrome level

4.1600ft or 500m above aerodrome level

Answer 5

4.1600ft or 500m above aerodrome level

Question 6

A pilot intends to carry out a VFR flight over the Alps on a hot summer’s day when the weather is unstable. What would be the best time of day to conduct the flight?
Select one:

1.Early morning

2.Mid-afternoon

3.Early evening

4.Mid-day

Answer 6

1.Early morning

Question 7

During flight the headwind increases suddenly due to wind shear. What initial effect will that have on the aircraft’s speed?
Select one:

1.True airspeed will increase

2.Ground speed will increase

3.The speed will not be affected

4.True airspeed will decrease

Answer 7

1.True airspeed will increase

Question 8

During an ILS approach on RWY 33, a north-westerly wind is blowing parallel to the runway. Its speed is decreasing rapidly with height while its change in direction is negligible. What has the pilot to be aware of with respect to wind shear and glide path (no autopilot engaged)?

Select one:

a.Without the pilot’s intervention, the aircraft is likely to fly below the designated glide path with increasing deviation from it.

b.Without the pilot’s intervention, the aircraft is likely to fly above the designated glide path with increasing deviation from it.

c.Without the pilot’s intervention, the aircraft is likely to fly below the designated glide path with decreasing deviation from it.

d.A deviation from the glide path will not have to be considered since there is no significant wind shear to be expected

Answer 8

a.Without the pilot’s intervention, the aircraft is likely to fly below the designated glide path with increasing deviation from it.

Question 9

The primary and secondary CAT areas associated with a jet stream are respectively:
Select one:

1.On the cold air side and just below the jet’s core

2.On the warm air side and just above the jet’s core

3.On the warm air side and just below the jet’s core

4.On the cold air side and just above the jet’s core

Answer 9

4.On the cold air side and just above the jet’s core

Question 10

In a mountainous area the most turbulent flying conditions associated with mountain wave (MTW) are likely to be
Select one:

a.between the troughs of the waves around 30 - 50nm downwind close to the tropopause

b.on the windward side just above the cap cloud formation

c.just above the lenticular cloud formation on the windward side

d.in the vicinity of the roll cloud or rotor zone beneath the first wave on the leeward side

Answer 10

d.in the vicinity of the roll cloud or rotor zone beneath the first wave on the leeward side