CNC machining and composites manufacturing MCQs – Aerospace

1. CNC machining is primarily used in aerospace to:
(A) Achieve precise and complex geometries
(B) Increase production time
(C) Produce only small quantities of parts
(D) Create non-metallic components

2. A common material used in CNC machining for aerospace applications is:
(A) Aluminum alloy
(B) Wood
(C) Plastic
(D) Concrete

3. In CNC machining, the term “feed rate” refers to:
(A) The speed at which the cutting tool moves through the material
(B) The temperature of the cutting tool
(C) The type of coolant used
(D) The hardness of the material

4. Which type of CNC machine is most commonly used for machining aerospace components?
(A) Vertical Milling Machine
(B) Lathe Machine
(C) Band Saw
(D) Press Brake

5. CNC machines are controlled by:
(A) Computer numerical control (CNC) systems
(B) Manual levers
(C) Hydraulic systems
(D) Pneumatic systems

6. In aerospace, composite materials are often used for:
(A) Their high strength-to-weight ratio
(B) Their low thermal resistance
(C) Their high density
(D) Their ease of machining

7. The process of reinforcing a polymer matrix with fibers to create a composite material is known as:
(A) Composite fabrication
(B) Laminating
(C) Fiber reinforcement
(D) Casting

8. Which of the following is a common type of composite material used in aerospace?
(A) Carbon fiber reinforced polymer (CFRP)
(B) Wood
(C) Glass
(D) Ceramic

9. In CNC machining, “tolerance” refers to:
(A) The allowable deviation from specified dimensions
(B) The color of the machined part
(C) The surface texture
(D) The weight of the part

10. The primary advantage of using composites in aerospace is:
(A) Reduced weight and increased strength
(B) Increased production time
(C) Limited design flexibility
(D) High cost and low strength