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Determine the corrections or otherwise of the following assertion and reason : Assertion : Fuel consumption is more for low level, high speed flight mission. Reason: At low altitude, the aerodynamic efficiency decreases drastically which affects the engine efficiency and range as well. To maintain cruise flight more fuel consumption is required. and are true and is the correct reason for b) Both and are true but is not the correct reason for c) is true but is false d) is false but is true

Correct Answer: and reason : Assertion : Fuel consumption is more for low level, high speed flight mission. Reason: At low altitude, the aerodynamic efficiency decreases drastically which affects the engine efficiency and range as well. To maintain cruise flight more fuel consumption is required. ] Both and are true and is the correct reason for
The low-level strike mission has to fly at just few km off the ground. During such flight the L/D ratio – aerodynamic efficiency is reduced in drastic manner. Since flight needs to be at higher velocity more thrust will be required. This will increase fuel consumption as compare to high altitude flight. Hence, both and are true and is the correct reason for .

Determine the corrections or otherwise of the following Assertion and reason : Assertion : Total fuel volume of aircraft is divided into mission or used fuel, reserve fuel and trapped fuel. Reason: Depending on type of aircraft, fuel fraction for each category will be different. and are true and is the correct reason for b) Both and are true but is not the correct reason for c) is true but is false d) is false but is true

Determine the corrections or otherwise of the following assertion and reason : Assertion : Maintaining smooth longitudinal contour in fuselage will give better aerodynamic design. Reason: Longitudinal control lines are used to provide smoothness to the fuselage. and are true and is the correct reason for b) Both and are true but is not the correct reason for c) Both and are false d) is false but is true

Determine the corrections or otherwise of the following Assertion and Reason : Assertion : Total fuel CG is located near to the aircraft CG. Reason: Fuel can be located at centre, at tip or at tail. and are true and is the correct reason for b) Both and are true but is not the correct reason for c) is true but is false d) is false but is true

Determine the corrections or otherwise of the following Assertion and Reason : Assertion : Supersonic flight is very difficult with pylon mounted external weapon carriage. Reason: External weapon carriage will experience minimum drag at supersonic speeds. and are true and is the correct reason for b) Both and are true but is not the correct reason for c) is true but is false d) is false but is true

Determine the corrections or otherwise of the following assertion and reason : Assertion : In general, wing twist should not be more than 6°. Reason: Wing twist is used to improve stall properties at tip. and are true and is the correct reason for b) Both and are true but is not the correct reason for c) is true but is false d) is false but is true

Determine the corrections or otherwise of the following Assertion and Reason : Assertion : For longitudinal static stability of an aircraft, slope of moment curve should be negative. Reason: Positive slope will result in more static stability than negative slope. Hence, slope should be positive always. and are true and is the correct reason for b) Both and are true but is not the correct reason for c) is true but is false d) is false but is true

Determine the corrections or otherwise of the following assertion and reason : Assertion : In modern A/C, we generally do not use spline lofting. Reason: Spline lofting is drawn through connecting different known points via spline line. and are true and is the correct reason for b) Both and are true but is not the correct reason for c) Both and are false d) is false but is true

Determine the corrections or otherwise of the following assertion and reason : Assertion : Aerobatic prop aircraft has much higher power loading. Reason: Power loading of prop aircraft is ratio of power to the weight of the aircraft. and are true and is the correct reason for b) Both and are true but is not the correct reason for c) Both and are false d) is false but is true

Determine the corrections or otherwise of the following assertion and reason : Assertion : Typically control surface are tapered with same taper ratio as primary component such as wing or tail Reason: Control surface is used to provide trim control to the A/C and are true and is the correct reason for b) Both and are true but is not the correct reason for c) Both and are false d) is false but is true

Determine the corrections or otherwise of the following assertion and reason : Assertion : To generate new airfoil, we use spanwise line instead of chord line in flat wrap interpolation technique. Reason: Chordwise line will generate flat structure from curves having different values of tangent angle. and are true and is the correct reason for b) Both and are true but is not the correct reason for c) Both and are false d) is true but is false