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Determine the corrections or otherwise of the following assertion and reason : Assertion : Flying boats have higher values of empty weight fraction than that of the military aircraft. Reason: Military aircraft has to be lighter in weight. 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: A
Military aircraft has to be lighter in weight is true. Flying boats are heavier than that of the typical military aircraft. The reason behind it is that flying boat has to carry extra weight of hull. Hence, and both correct but is not the correct reason for given assertion.

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 : 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 : 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 : 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 : 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

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 : Taper ratio will affect the weight of wing. Reason: For finite taper ratio, wing thickness will be different at root and 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 : 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 : Most of the tails are using symmetric airfoils. Reason: Tail control has two primary control surface. 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 : 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