WorksheetsAdvanced Machining Processes 2
Total questions: 10
Worksheet time: 8mins
1. What is the working principle of Chemical Machining (CHM)?
a) Mechanical abrasion to remove material
b) Chemical etching using acids or alkalis to dissolve material
c) Electrical energy to remove material
d) High-pressure water jet cutting
2. Which of the following is a key factor affecting the rate of material removal in Chemical Machining?
a) Type and concentration of etchant
b) Electrical conductivity of the workpiece
c) Speed of tool rotation
d) Temperature of the coolant
3. Which of the following is NOT a maskant application technique in Chemical Machining?
a) Screen printing
b) Spray coating
c) Dip coating
d) Electroplating
4. Electrochemical Machining (ECM) removes material by which of the following processes?
a) Thermal melting
b) Mechanical abrasion
c) Anodic dissolution
d) Laser ablation
5. In Electrochemical Machining (ECM), which parameter has the most significant impact on the material removal rate?
a) Type of electrolyte used
b) Rotational speed of the tool
c) Workpiece hardness
d) Diameter of the tool
6. What is the primary application of Electrochemical Honing (ECH)?
a) Producing deep holes in soft materials
b) Finishing of gears and splines
c) Removing burrs from delicate parts
d) Creating high-precision surface finishes in hardened materials
7. Electrochemical Grinding (ECG) combines which two processes?
a) Chemical machining and ultrasonic machining
b) Electrochemical machining and conventional grinding
c) Water jet machining and abrasive jet machining
d) Plasma arc cutting and grinding
8. Which of the following is a key advantage of Electrochemical Machining (ECM)?
a) High tool wear
b) Can machine complex shapes in hard materials
c) High thermal distortion
d) Requires frequent tool replacement
9. What is the main purpose of Electrochemical Deburring (ECD)?
a) Creating holes in soft materials
b) Removing sharp edges and burrs from machined components
c) Increasing surface roughness of metal parts
d) Welding metal surfaces together
10. Which of the following is a limitation of Electrochemical Machining (ECM)?
a) Cannot machine hard materials
b) High tool wear during the process
c) High initial cost and maintenance
d) Generates excessive heat that melts the workpiece
