Fundamentals of Aerodynamics Which law explains the lift generation in an aircraft? A) Newton’s First Law B) Bernoulli’s Principle C) Archimedes’ Principle D) Pascal’s Law Answer: B) Bernoulli’s Principle What is the primary function of an airfoil? A) Provide thrust B) Generate lift C) Control drag D) Stabilize the aircraft Answer: B) Generate lift The … Read more
Which alloy is commonly used for its high strength and light weight in aircraft structures? a) Steel alloy b) Aluminum alloy c) Bronze alloy d) Brass alloy Answer: b) Aluminum alloy Which alloy is known for its excellent resistance to corrosion and is widely used in aerospace applications? a) Stainless steel b) Brass c) Bronze … Read more
Which metal is commonly used in aircraft structures due to its high strength-to-weight ratio? a) Iron b) Copper c) Aluminum d) Lead Answer: c) Aluminum What property of titanium makes it suitable for aerospace applications? a) High thermal conductivity b) High density c) High corrosion resistance and strength d) Low melting point Answer: c) High … Read more
What is the primary advantage of using composite materials in aerospace applications? a) High density b) Low cost c) High strength-to-weight ratio d) High thermal conductivity Answer: c) High strength-to-weight ratio In composite materials, the term “matrix” refers to: a) The reinforcing fibers b) The binder that holds the fibers together c) The interface between … Read more
Which of the following materials is most commonly used for aircraft structures due to its high strength-to-weight ratio? a) Steel b) Titanium c) Aluminum d) Copper Answer: c) Aluminum The property of a material to deform without breaking is known as: a) Toughness b) Hardness c) Brittleness d) Ductility Answer: d) Ductility In materials science, … Read more
The fundamental equation of gas dynamics is the: a) Bernoulli equation b) Navier-Stokes equation c) Euler equation d) Reynolds equation Answer: c) Euler equation In gas dynamics, the “stagnation pressure” is defined as: a) The pressure at a point in a compressible flow b) The pressure measured when the flow is brought to rest adiabatically … Read more
What does Bernoulli’s principle state about fluid flow? a) Increase in velocity leads to an increase in pressure b) Decrease in velocity leads to an increase in pressure c) Increase in velocity leads to a decrease in pressure d) Pressure and velocity are independent of each other Answer: c) Increase in velocity leads to a … Read more
The “continuity equation” in fluid mechanics states that: a) Mass flow rate is constant along a streamline b) The sum of the pressures in a fluid system is constant c) The density of a fluid remains constant d) The volume flow rate is constant in a closed system Answer: a) Mass flow rate is constant … Read more
What is the “modulus of elasticity” (Young’s modulus) used to measure? a) The material’s ability to conduct heat b) The material’s resistance to deformation under stress c) The material’s density d) The material’s thermal expansion Answer: b) The material’s resistance to deformation under stress Which type of stress is caused by a force that acts … Read more
The term “dynamic stability” in an aircraft refers to: a) The aircraft’s ability to return to its original position after a disturbance b) The aircraft’s ability to maintain a steady flight path c) The aircraft’s ability to resist aerodynamic forces d) The aircraft’s ability to remain in equilibrium Answer: a) The aircraft’s ability to return … Read more