1. Why is there a need for non-traditional machining processes?

• a) To replace all conventional machining processes

• b) To machine soft materials efficiently

• c) To machine hard and complex materials that are difficult to cut using conventional methods

• d) To reduce manufacturing costs significantly

2. Which of the following is NOT a classification of non-traditional machining processes?

• a) Mechanical

• b) Chemical

• c) Thermal

• d) Conventional

3. Which non-traditional machining process uses a high-speed stream of abrasive particles to remove material?

• a) Water Jet Machining

• b) Abrasive Jet Machining

• c) Ultrasonic Machining

• d) Electric Discharge Machining

4. What is the primary working principle of Water Jet Machining (WJM)?

• a) High-energy thermal cutting

• b) High-velocity jet of water for material removal

• c) Chemical reaction-based etching

• d) Mechanical vibration-assisted machining

5. In Ultrasonic Machining (USM), what is the function of the abrasive slurry?

• a) To lubricate the tool and workpiece

• b) To cool down the machining zone

• c) To remove material through micro-chipping action

• d) To provide electrical conductivity for machining

6. Which of the following is NOT an advantage of Abrasive Jet Machining (AJM)?

• a) Can machine brittle and heat-sensitive materials

• b) Produces no thermal damage to the workpiece

• c) High material removal rate compared to conventional machining

• d) Capable of machining intricate shapes

7. What is the main limitation of Water Jet Machining (WJM)?

• a) Cannot cut soft materials

• b) Generates excessive heat in the workpiece

• c) Requires high-pressure pumps and maintenance costs are high

• d) Produces rough surface finishes

8. What parameter has the most significant impact on material removal rate in Ultrasonic Machining (USM)?

• a) Frequency of vibration

• b) Workpiece temperature

• c) Type of coolant used

• d) Diameter of the cutting tool

9. Which non-traditional machining process is most suitable for cutting soft materials like rubber and foam?

• a) Ultrasonic Machining

• b) Water Jet Machining

• c) Abrasive Jet Machining

• d) Electrical Discharge Machining

10. Which of the following is a disadvantage of Ultrasonic Machining (USM)?

• a) Cannot be used on brittle materials

• b) Produces excessive heat during machining

• c) Low material removal rate

• d) Causes chemical reactions on the workpiece