Q1. During a landing approach, the aircraft is subjected to windshear with an increasing headwind. In the absence of a pilot action, the aircraft:
A
Q2. During a landing approach, the aircraft is subjected to windshear with a decreasing headwind. In the absence of a pilot action, the aircraft:
A
Q3. During a landing approach, the aircraft is subjected to windshear with an increasing tailwind. In the absence of a pilot action, the aircraft:
C
Q4. During a landing approach, the aircraft is subjected to windshear with a decreasing tailwind. In the absence of a pilot action, the aircraft:
B
Q5. Take-off EPR is being delivered by all engines and the take-off is proceeding normally, the undercarriage has just retracted. Which initial indications may be observed when a headwind shears to a downdraught?
Correct answer is – Indicated Airspeed: decreases. Vertical Speed: decreases. Pitch Attitude: decreases.
Q6. Maximum downdraughts in a microburst encounter may be as strong as:
Correct answer is – 6000 ft/min.
Q7. An aircraft that encounters a headwind of 45 knots, within a microburst, may expect a total shear across the microburst of:
Correct answer is – 90 kt.
Q8. What is the expected duration of an individual micro burst?
Correct answer is – Seldom longer than 15 minutes from the time the burst strikes the ground until dissipation.
Q9. Which windshear condition results in a loss of airspeed?
Correct answer is – Decreasing headwind and increasing tailwind.
Q10. Which performance characteristics should be recognized during take-off when encountering a tailwind shear that increases in intensity?
Correct answer is – Loss of, or diminished climb ability.
Q11. Which condition would INITIALLY cause the indicated airspeed and pitch to increase and the sink rate to decrease?
Correct answer is – Sudden increase in a headwind component.
Q12. Which INITIAL cockpit indications should a pilot be aware of when a constant tailwind shears to a calm wind?
Correct answer is – Altitude, pitch, and indicated airspeed increase.
Q13. What is the recommended technique to counter the loss of airspeed and resultant lift from windshear?
Correct answer is – Avoid overstressing the aircraft, pitch to stick shaker, and apply maximum power.
Q14. Which of the following would be acceptable techniques to minimize the effects of a windshear encounter? 1. To prevent damage to the engines, avoid the use of maximum available thrust. 2. Increase the pitch angle until the stick shaker activates, then decrease back-pressure to maintain that angle of pitch. 3. Maintain a constant airspeed. 4. Use maximum power available as soon as possible. 5. Keep to noise abatement procedures. 6. Wait until the situation resolves itself before taking any action.
Correct answer is – 2 and 4.
Q15. Which of the following statements about windshear is true? 1. Windshear can subject your aircraft to sudden updraughts, downdraughts, or extreme horizontal wind components. 2. Windshear will cause abrupt displacement from the flight path and require substantial control action to counteract it. 3. Windshear only affects small single and twin engine aircraft. Large, modern, powerful, fast gas turbine engine powered aircraft will not suffer from the worst effects of a microburst. 4. Microbursts are associated with cumulonimbus clouds. 5. Windshear can strike suddenly and with devastating effect which has been beyond the recovery powers of experienced pilots flying modern and powerful aircraft.
Correct answer is – 1, 2, 4 and 5.
Q16. A microburst is one of the most dangerous sources of windshear associated with thunderstorms. They are:
Correct answer is – small-scale (typically less than 1 mile in diameter) intense downdraughts which, on reaching the surface, spread outward in all directions from the downdraught centre.
Q17. Thrust is being managed to maintain desired indicated airspeed and the glide slope is being flown. Which of the following is the recommended procedure when you observe a 30 kt loss of airspeed and the descent rate increases from 750 ft/min to 2000 ft/min?
Correct answer is – Apply full power and execute a go-around; report windshear to ATC as soon as practicable.
Q18. Which of the following statements are correct? 1. A rapid increase in headwind is an ‘energy gain’. 2. A rapid loss of tailwind is an ‘energy gain’. 3. A shear from a tailwind to calm is an ‘energy gain’. 4. A shear from calm to a headwind is an ‘energy gain’. 5. A shear from headwind to calm is an ‘energy loss’.
Correct answer is – 1, 2, 3, 4 and 5.
Q19. Which of the following statements are correct? 1. A downdraught is an ‘energy gain’. 2. A rapid loss of tailwind is an ‘energy loss’. 3. A shear from a tailwind to calm is an ‘energy loss’. 4. A shear from calm to a headwind is an ‘energy gain’. 5. A downdraught is an ‘energy loss’.
Correct answer is – 4 and 5 only.
Q20. Which of the following sequences might be encountered when flying into a microburst?
Correct answer is – Increased headwind, followed by downdraught, followed by increased tailwind on the approach, or following take-off.
Q21. Which of the following statements is correct when considering windshear? 1. Recognize that windshear is a hazard to all sizes and types of aircraft. 2. Recognize the signs which may indicate its presence. 3. Avoid windshear by delaying departure or by diverting if airborne. 4. Prepare for the inadvertent encounter by a speed ‘margin’ if ‘energy loss’ windshear is suspected. 5. Know the techniques for recovery recommended for your aircraft and use them without any hesitation if windshear is encountered.
Correct answer is – 1, 2, 3, 4 and 5.