This is a timed quiz. You will be given 2700 seconds to answer all questions. Are you ready?
A holder of a LAPL or PPL may carry out certain minor repairs and services, these are:
The minor repairs and services permissible by a licenced pilot, providing the aircraft MTOW is less than 2,730kg, are prescribed in the Air Navigation Regulations from the CAA.
The green arc on the airspeed indicator shows:
The greenarc indicates the normal operating range of the aircraft from Vs1 to Vno.
The actual outside air temperature at 4,000ft is +5 degrees Celsius. How does this compare to the ISA?
ISA temperature at sea level is +15 and it decreases by 2 degrees per 1000ft. 4000ft would mean a reduction in temperature of 8 degrees. 15 – 8 = +7 degrees which is 2 degrees warmer than the standard temperature for 4000ft meaning the answer is A, ISA -2.
A light aircraftโs certificate of airworthiness:
A certificate of airworthiness will remain valid so long as the aircraft meets it approved type design and is operated and maintained in a safe, efficient and approved manner.
Which of the following are signs of an overstressed airframe?
Answer A highlights vital indications that the structural integrity of the airframe is being compromised. Scratches are only signs of overstress if they turn into cracks. In addition to this, missing rivets is usually down to maintenance but not an overstressed airframe.
High air density improves aircraft performance. Which of the following factors will increase air density?
Density is influenced by humidity, altitude and temperature. Humidity decreases density as water molecules are lighter than air molecules. Density is higher at lower altitudes, as density decreases with gain in altitude. Low temperature means the air molecules do not have as much kinetic energy and donโt move as freely, thus being more dense.
Climbing out after take off an aircraft is subjected to windshear with an increase in tailwind. Without pilot intervention, the aircraft will experience:
An increase in tailwind will essentially push the plane down from behind, thus reducing the rate of climb. An increase in tailwind will also create a lesser relative airflow over the wings and into the pitot tube, reducing the indicated airspeed.
Ground effect will result in:
Ground effect will increase lift and reduce drag causing the plane to float near to the ground.
By how much would you expect the landing distance to increase when landing on short, wet grass?
The safety factor for short, wet grass on the landing distance is 30%. Multiplying a distance by 1.3 will give the relevant factor.
It is recommended that when calculating take-off distance, a take-off safety factor should be applied. What is this take-off safety factor?
Take-off safety factor is calculated to be 1.33.
Increasing an aircraftโs weight by 10% will have what effect on the take off distance?
Increasing the weight of an aircraft will increase the take-off distance as the aircraft will need more lift to get the higher weight off the ground. The safety factor for a 10% increase in weight is 1.2 for take off distance and 1.1 for the landing distance.
When using runway 27, the surface wind is 300/28. What is the approximate crosswind component?
To work out the crosswind component that calculation is. Wind speed x Sine (Angle between the wind direction and runway). 28 x sin(30) = 14kts. Alternatively the CRP1 can be used.