Comkputer based minimum Q Flashcards
(158 cards)
Which moments or motions interact in a Dutch roll?
Yaw and roll.
A Dutch roll is a coupled lateral-directional oscillation observed in aircraft, primarily involving a combination of yawing and rolling motions. It is typically a stability issue that affects swept-wing and high-speed jets more than straight-wing or slower aircraft.
Why Is It Called Dutch Roll?
The term originates from a resemblance to a traditional Dutch ice-skating technique, where skaters glide side-to-side in a smooth, swaying motion. Similarly, an aircraft experiencing a Dutch roll exhibits a side-to-side yawing combined with a rolling motion.
How Does Dutch Roll Happen?
Initial Yaw Disturbance:
A disturbance (like turbulence or improper control input) causes the aircraft’s nose to yaw (move side-to-side).
Roll Reaction (Dihedral Effect):
As the aircraft yaws, one wing advances faster than the other.The advancing wing generates more lift due to increased airspeed, causing the aircraft to roll toward the opposite side of the yaw.
Yaw Reaction from Roll:
The roll induces further yaw due to aerodynamic forces.The oscillation continues as yaw and roll feed into each other.
Oscillation:
The aircraft will sway from side to side and roll alternately, creating a damped oscillation (if the aircraft is stable) or a growing oscillation (if the aircraft is unstable).
Cruising at 600 km/h, how many km/min?
10 km/min
600km/h÷60=10km/min
The fuel consumption of an aircraft is 2400 kg/h. If it is fitted with sharklets, fuel consumption is reduced by 5%. What is the consumption of an engine (ac fitted with sharklets) in 180 minutes?
6840 kg
The diameter of a wheel is 60 cm. What is the distance covered in 2 revolutions?
376.99 cm
4(x+3)=28. What is xxx?
4
If 6 workers do the job in 40 hours, how much time will it take for 5 workers?
48 hours
Sum of prime numbers between 4 and 16?
36
5+7+11+13=36
What is the volume of the cube (in m³), if the lengths of the sides are 100 cm, 50 cm, 50 cm?
0.25 m³
1.1 x 1.1?
1.21
Start with 1:
Since both numbers are close to 1, begin with 1 as your base.
Add the small increases:
Both numbers are 0.1 more than 1. Add these together:
0.1 + 0.1 = 0.2
Add the product of the small increases:
Multiply the two small increases:
0.1 × 0.1 = 0.01
Add everything together:
1 + 0.2 + 0.01 = 1.21
Which engine is on our A320neo fleet?
Pratt & Whitney PW1100G-JM.
The Airbus A320neo fleet of Wizz Air is powered by the Pratt & Whitney PW1100G-JM engines, which are part of the Geared Turbofan (GTF) engine family. This engine is known for its advanced technology, including a reduction gear system that allows the fan to rotate at a different speed than the low-pressure turbine.
This innovation improves fuel efficiency by up to 16%, reduces noise footprint by around 75%, and decreases nitrogen oxide emissions significantly compared to previous-generation engines. The enhanced performance of the PW1100G-JM aligns with Wizz Air’s strategy to operate a fuel-efficient, environmentally friendly fleet.
Where is the financial HQ of Wizz Air?
Jersey, Channel Islands.
The financial headquarters of Wizz Air Holdings Plc is located in Jersey, one of the Channel Islands. Jersey is a well-known offshore financial center, offering favorable tax and regulatory advantages for international businesses. While Wizz Air’s operational headquarters is in Budapest, Hungary, the financial HQ in Jersey allows the company to manage its financial affairs more efficiently, particularly concerning taxation and corporate structure. This setup is common for many multinational companies looking to optimize their financial operations.
Wizz Air was established on?
19 September 2003.
First Wizz Air flight took off from?
Katowice International Airport (KTW), Poland.
Wizz Air, a Hungarian low-cost airline, launched its first commercial flight on May 19, 2004, from Katowice International Airport to London Luton Airport. Katowice was chosen due to its strategic location in Poland, offering access to a large market in Central and Eastern Europe. This inaugural flight marked the beginning of Wizz Air’s rapid expansion across Europe.
With the centre of gravity on the forward limit, the stalling speed would?
Why are vortex generators often fitted on aircraft with straight wings?
Answer: To delay flow separation and improve control effectiveness.
What is the approximate composition of the dry air by volume in the troposphere?
Nitrogen (N₂): 78.09%
Oxygen (O₂): 20.95%
Argon (Ar): 0.93%
Carbon Dioxide (CO₂): 0.04%
Other Gases: Trace amounts (neon, helium, methane, krypton, hydrogen)
What does RVR stand for?
Runway Visual Range
What is the meaning of the abbreviation “BKN”?
Broken
Other Octas in metar?
Landing at an airfield (elevation: 540 ft, QNH: 993) with your altimeter set to 1013, what will be the indication on the ground?
1180 ft
The Minimum Equipment List (MEL) is established by?
The aircraft operator, approved by the national aviation authority.
Right after takeoff there is a microburst in front of you. What can you expect first?
Runway centre line lights shall be fixed lights showing variable …. from the threshold to the point 900 m from the runway end, alternate …. and variable …. from 900 m to 300 m from the runway end, and …. from 300 m to the runway end.
White from the threshold to 900 m from the runway end
Alternate white and red from 900 m to 300 m from the runway end
Red from 300 m to the runway end
You are turning from 330°(C) to 040°(C) in the Northern Hemisphere, using timing. You stop the turn at the correct time. Before the direct indicating magnetic compass settles down, does it over-read or under-read, and does the effect of liquid swirl increase or decrease?
The compass will over-read, and the effect of liquid swirl will increase.
