Metal Cutting MCQ and Cutting Tools MCQ – Production Technology

31. The cutting tool used in spark erosion machinng process is called

1. arc
2. capacitor
3. electrode
4. dielectric

32. In the Taylor’s tool life equation, VTⁿ = C, the value of n = 0.5. The tool has a life of 180 minutes at a cutting speed of 18 m/minute. Determine the cutting speed if the tool life is reduced to 45 minutes.
(Where: V: cutting velocity, T: tool life, n: Taylor’s tool life exponent and C: constant)

1. 9 m/minute
2. 18 m/minute
3. 36 m/ minute
4. 72 m/ minute

33. The most important requisite of a cutting tool material is

1. Carbon percentage
2. Red (hot) hardness
3. Easy fabrication
4. Alloy percentage

34. Which one of the following sequence of increasing order of cutting speed of material is correct?

1. HSS < Carbon Steel < Cemented carbide < Ceramics
2. Carbon Steel < HSS < Cemented carbide < Ceramics
3. Carbon Steel < HSS < Ceramics < Cemented carbide
4. HSS < Carbon Steel < Ceramics < Cemented carbide

35. A work piece is turned on a lathe at 100 m/min cutting speed, 0.4 mm/rev and 1.5 mm depth of cut. What is the rate of metal removal?

1. 60000 mm³/min
2. 20000 mm³/min
3. 155 mm³/min
4. 1000 mm³/min

36. The instrument or device used to measure the cutting force during maching is

1. Comparator
2. Tachometer
3. Dynamometer
4. Lactometer

37. A diamond pointed chisel is used for cutting

1. Flat surface
2. Grooves
3. key-ways
4. V-shaped grooves

38. Abrasion cuts and punctures impact are related to

1. Machine injury
2. Head injury
3. Hand injury
4. Work injury

39. What is the angle made by the face of the tool and the plane parallel to the base of cutting tool called as?

1. Rake angle
2. Cutting angle
3. Clearance angle
4. Lip angle

40. Which of the following factors affect the life of a cutting tool?

1. Cutting speed
2. Feed
3. Depth of cut and chip thickness
4. All of these