Exam 45 Created on June 04, 2021 By admin Exam 001 Hey guys, the paper has been set as in the DGCA format but with only 50 questions. Try to finish it within 01:30 hours 1 / 50 The camber Decides the purpose of the aerofoil Is the curvature of the aerofoil Both of the above 2 / 50 Density is directly proportional to Altitude Pressure Temperature Humidity 3 / 50 Asymmetrical aerofoil can create lift Does not create lift Without airflow Even at negative angle of Attack Only at positive angle of attack 4 / 50 Angle of Attack can be changed by flight controls Is constant Cannot be changed Is not required 5 / 50 Which is the densest layer in the atmosphere? Troposphere Exosphere Mesosphere Thermosphere 6 / 50 What are the kinds of pressures that occur in Aerodynamics Static pressure All of the above Dynamic pressure Total pressure 7 / 50 Which layer in the atmosphere is used by airlines? Troposphere Ionosphere Stratosphere Exosphere 8 / 50 In a symmetrical Aerofoil The mean camber line and chord line coincide The chord line isn't there Camber line isn’t there The mean camber line and chord line do not coincide 9 / 50 Full form of DGCA Director of civil aviation Directive of civil aviation Direction of international aviation Directorate General of civil Aviation 10 / 50 The line that cuts the aerofoil into half is Chord line Camber Mean camber line Leading edge 11 / 50 When velocity of fluid decreases Constant Static Pressure Descreases, Dynamic pressure increases Pressure decreases Static Pressure Increases, Dynamic pressure decreases 12 / 50 Which gas contributes to 21% of air Argon Nitrogen Helium Oxygen 13 / 50 Angle of Incidence is the angle between chord and relative airflow None of the above Chord and longitudinal axis of Aircraft Chord and mean camber line 14 / 50 More the humidity, density will Decrease Remain constant Increase 15 / 50 The pressure that occurs due to moving air brought to rest on a surface is Dynamic pressure Total pressure All of the above Static pressure 16 / 50 When the air molecules flow in a non steady path forming Eddie’s it’s called Turbulent flow Non streamlined flow Laminar flow None of the above 17 / 50 When a fluid is displaced from point A to B, the total energy: Remains constant Changes Varies Gets lost 18 / 50 ICAO WAS FORMED ON 4th April 1956 4th April 1948 4th April 1947 10th April 1956 19 / 50 Which is heavier or more dense Humid air Water vapour Dry Air Air with water vapour 20 / 50 Full form of ICAO Indian civil aviation organisation International civil Aviation organisation Indian civil organisation International civil organisation 21 / 50 Coefficient of lift depends on The Shape of the Aerofoil None of the above Angle of Attack Both of the above 22 / 50 How many layers are present in the atmosphere? 2 8 4 6 23 / 50 Full form of VFR Visual fight rules Visual flight rules Visual fit rules Vital flight radio 24 / 50 Full form of IFR Instrument flight radio Instant flight rules Instrument flight rules Instant fight rules 25 / 50 The line joining the leading and trailing edge of the aerofoil is Mean line Camber Mean camber line Chord line 26 / 50 The unit of Force is Watt Metre Joule Newton 27 / 50 “For every action there is an equal and opposite reaction”- which law is it Newton’s third law Newton’s 2nd law Law of conservation of Energy Newton’s 1st law 28 / 50 At the stagnation point Airflow has max velocity Dynamic pressure is high Airflow is accumulated Airflow has zero velocity 29 / 50 Density increases with? Humidity Temperature Altitude Pressure 30 / 50 What is the Full form of ISA International Standard Atmosphere Indian standard Atmosphere International non standard atmosphere Indian standard Arrogance 31 / 50 Its day time and visibility is 5km and when you are clear of cloud by 1500 m horizontal and 1000 ft vertical, which flight rules can be followed VFR None of the above IFR SPL VFR 32 / 50 When the air molecules flow in a steady path maintaining steady velocity it’s called Laminar flow Turbulent flow None of the above Non streamlined flow 33 / 50 The point at which all the weight acts on the aircraft is None of the above Centre of Gravity Centre of Pressure Neutral point 34 / 50 Which gas constitutes 78 % of air Carbon dioxide Argon Nitrogen Oxygen 35 / 50 Which layer in the atmosphere has satellites? Mesosphere Thermosphere Exosphere Ionosphere 36 / 50 The potential energy of an object is the result of its Movement Motion Work Position 37 / 50 Pressure Decreases with increase in? Altitude Temperature Humidity All of the above 38 / 50 The law of conservation of Energy states that Energy can neither be created nor be destroyed but can only be transformed from one state to the other Energy can only be created Energy can neither be created nor be destroyed but cannot be transformed from one state to the other Energy can neither be created nor be destroyed 39 / 50 Lift is caused because of Ground forces Inertia Pressure differential Weight 40 / 50 Which layer in the atmosphere have the most weather Troposphere Stratosphere Mesosphere Ionosphere 41 / 50 Density is inversely proportional to Temperature Altitude Humidity Pressure 42 / 50 What is the density of dry air 1.55 kg/m cube 1.225 kg/m cube 1.332 kg/m cube 2.0 kg/ m cube 43 / 50 An aerofoil Is only present in airplanes Is the cross-section of the wing which when moved through a fluid like air creates aerodynamic forces Is too complicated Is a wing that creates lift 44 / 50 The unit of pressure is Pascal Joule Watt Newton 45 / 50 Which statement is true Total pressure= Static pressure + Dynamic Pressure Total pressure= Pitot pressure + Dynamic pressure Total pressure = Dynamic pressure Total pressure= static pressure 46 / 50 Which layer plays an important part in communication? Troposphere Ionosphere Mesosphere Exosphere 47 / 50 At sea level what is the ISA pressure 1013.25 mb 1011 mb 1012 mb 1010 mb 48 / 50 Which are the four forces of flight Thrust, Gravity, Weight, Drift None of the above Lift , Weight , thrust, Drag Lift, Drag, Drift, Thrust 49 / 50 With Altitude temperature? Constant Increases Decreases 50 / 50 What is the ISA temperature at mean sea level 20 degree C 30 Degree C 15 degree C 40 Degree C Your score is The average score is 76% LinkedIn Facebook Twitter VKontakte 0% Restart quiz . Do well guys!! Happy Landing .
