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