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