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 Full form of DGCA Directive of civil aviation Director of civil aviation Direction of international aviation Directorate General of civil Aviation 2 / 50 The line that cuts the aerofoil into half is Chord line Camber Leading edge Mean camber line 3 / 50 How many layers are present in the atmosphere? 2 6 8 4 4 / 50 “For every action there is an equal and opposite reaction”- which law is it Newton’s third law Newton’s 1st law Law of conservation of Energy Newton’s 2nd law 5 / 50 The point at which all the weight acts on the aircraft is Centre of Gravity Centre of Pressure Neutral point None of the above 6 / 50 The line joining the leading and trailing edge of the aerofoil is Mean camber line Camber Chord line Mean line 7 / 50 Density is directly proportional to Temperature Altitude Pressure Humidity 8 / 50 Density increases with? Temperature Humidity Pressure Altitude 9 / 50 Which is the densest layer in the atmosphere? Exosphere Mesosphere Troposphere Thermosphere 10 / 50 The unit of Force is Watt Metre Joule Newton 11 / 50 The camber Decides the purpose of the aerofoil Is the curvature of the aerofoil Both of the above 12 / 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 13 / 50 The potential energy of an object is the result of its Movement Position Motion Work 14 / 50 When velocity of fluid decreases Pressure decreases Static Pressure Increases, Dynamic pressure decreases Static Pressure Descreases, Dynamic pressure increases Constant 15 / 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 SPL VFR None of the above IFR 16 / 50 Coefficient of lift depends on None of the above The Shape of the Aerofoil Angle of Attack Both of the above 17 / 50 The unit of pressure is Joule Newton Pascal Watt 18 / 50 Which gas constitutes 78 % of air Nitrogen Argon Carbon dioxide Oxygen 19 / 50 An aerofoil Is a wing that creates lift Is too complicated Is only present in airplanes Is the cross-section of the wing which when moved through a fluid like air creates aerodynamic forces 20 / 50 What is the ISA temperature at mean sea level 15 degree C 40 Degree C 30 Degree C 20 degree C 21 / 50 More the humidity, density will Decrease Remain constant Increase 22 / 50 Full form of VFR Vital flight radio Visual fit rules Visual fight rules Visual flight rules 23 / 50 With Altitude temperature? Increases Decreases Constant 24 / 50 In a symmetrical Aerofoil The mean camber line and chord line coincide Camber line isn’t there The chord line isn't there The mean camber line and chord line do not coincide 25 / 50 Angle of Attack can be changed by flight controls Is not required Cannot be changed Is constant 26 / 50 What are the kinds of pressures that occur in Aerodynamics Dynamic pressure Total pressure Static pressure All of the above 27 / 50 What is the density of dry air 1.55 kg/m cube 2.0 kg/ m cube 1.225 kg/m cube 1.332 kg/m cube 28 / 50 Which layer in the atmosphere have the most weather Troposphere Stratosphere Ionosphere Mesosphere 29 / 50 Pressure Decreases with increase in? All of the above Humidity Temperature Altitude 30 / 50 Which is heavier or more dense Air with water vapour Dry Air Water vapour Humid air 31 / 50 When the air molecules flow in a steady path maintaining steady velocity it’s called Non streamlined flow None of the above Turbulent flow Laminar flow 32 / 50 At the stagnation point Dynamic pressure is high Airflow is accumulated Airflow has zero velocity Airflow has max velocity 33 / 50 Density is inversely proportional to Pressure Temperature Humidity Altitude 34 / 50 When a fluid is displaced from point A to B, the total energy: Varies Changes Gets lost Remains constant 35 / 50 Which layer plays an important part in communication? Mesosphere Exosphere Troposphere Ionosphere 36 / 50 Which are the four forces of flight None of the above Thrust, Gravity, Weight, Drift Lift, Drag, Drift, Thrust Lift , Weight , thrust, Drag 37 / 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 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 38 / 50 Lift is caused because of Ground forces Pressure differential Weight Inertia 39 / 50 Which statement is true Total pressure= Pitot pressure + Dynamic pressure Total pressure= Static pressure + Dynamic Pressure Total pressure= static pressure Total pressure = Dynamic pressure 40 / 50 Full form of IFR Instant fight rules Instant flight rules Instrument flight radio Instrument flight rules 41 / 50 Full form of ICAO International civil Aviation organisation Indian civil organisation Indian civil aviation organisation International civil organisation 42 / 50 Which layer in the atmosphere is used by airlines? Ionosphere Troposphere Stratosphere Exosphere 43 / 50 Asymmetrical aerofoil can create lift Without airflow Even at negative angle of Attack Only at positive angle of attack Does not create lift 44 / 50 When the air molecules flow in a non steady path forming Eddie’s it’s called Turbulent flow None of the above Non streamlined flow Laminar flow 45 / 50 Which gas contributes to 21% of air Oxygen Nitrogen Argon Helium 46 / 50 Which layer in the atmosphere has satellites? Thermosphere Ionosphere Mesosphere Exosphere 47 / 50 At sea level what is the ISA pressure 1010 mb 1013.25 mb 1012 mb 1011 mb 48 / 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 49 / 50 What is the Full form of ISA Indian standard Arrogance International Standard Atmosphere International non standard atmosphere Indian standard Atmosphere 50 / 50 ICAO WAS FORMED ON 10th April 1956 4th April 1948 4th April 1947 4th April 1956 Your score is The average score is 76% LinkedIn Facebook Twitter VKontakte 0% Restart quiz . Do well guys!! Happy Landing .
