Question 1 Which of the following process cannot be done on a lathe (without a s

Question

Question 1 Which of the following process cannot be done on a lathe (without a special attachment)? (Ch.22) a.Drilling b.Milling c.Knurling d.Boring

Question 2 Which of the following parts in lathe is used in threading operation but not in turning operation? (Ch.22) a.Feed rod b.Spindle c.Carriage assembly d.Lead screw

Question 3 Which type of lathe helps in carrying out different sequential operations on a single workpiece with minimal tool change time? (Ch.22) a.Tool room lathe b.Turret lathe c.Gap-bed lathe d.Bench lathe

Question 4 Which among these is the hardest material for a cutting tool? (Ch.21) a.High-speed steel b.Sintered carbide c.Alloy steel d.Cubic boron nitride

Question 5 Which of the following tool material doesn't involve sintering process? (Ch.21) a.Tool steel b.Cubic boron nitride c.Ceramics d.Polycrystalline diamond

Question 6 Which is the hardest cutting tool material? (Ch.21) a.PCD b.CBN c.HSS d.Carbide

Question 7 Which of the following cutting parameter is not a direct input to the machine tool in face milling? (Ch.20) a.Feed rate b.Feed per tooth c.Depth of cut d.Cutter speed

Question 8 Which are the 2 forces involved in Orthogonal machining? (Ch.20) a.Shear force & Feed force b.Friction force & Shear force c.Cutting force & Shear force d.Cutting force & Feed force

Question 9 A 6 inch diameter shaft is to be faced at 600 fpm; the RPM set on the lathe would be______. (Ch.20) a.400 RPM b.133 RPM c.1600 RPM d.33 RPM

Question 10 Which of the following involves single point cutting? (Ch.20) a.Slab milling b.Shaping c.Drilling d.Broaching

Explanation / Answer

Question number wise answers are as below alongwith some explainations:

1. (C) Knurling, although it is done on lathe but it requires an attachment.

2. (A) Feed Rod, It is used for precise longitudenal movement of carriage for thread cutting.

3. (B) Turret Lathe, it has a special kind of tool holder on which more than one tools can be mounted which inturn reduces the tool chnage time.

4. (D) Carbon Boron Nitride, It is the second hardest material known after Diamond.

5. (A) Tool Steel, As it is not made by using Powder Metallurgy.

6. (A) PCD , Polycrystaline Diamond.

7. (B) Feed per Tooth

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