Universal Dividing Head in Milling and Types of Indexing

Q. The diameter and rotational speed of a job are $100m$ and $500rpm$ respectively. The high spots (chatter marks) are found at a spacing of $30deg$ on the job surface. The chatter frequency is

1. $5Hz$
2. $12,Hz$
3. $100Hz$
4. $500Hz$

Q. Teeth of internal spur geaars can be accurately cut in a

1. Milling machine
2. Gear shaping machine
3. Slotting machine
4. Hobbing machine

Q. Which of following gear manufacturing processes is based on generation principle.

1. Gear hobbing
2. Gear shaping
3. Gear milling
4. Gear shaving

Q. Internal gear cutting operation can be performed by

1. milling
2. shaping with rack cutter
3. shaping with pinion cutter
4. hobbing

Q. Gear hobbing produces more accurate geers than milling because in hobbing

1. there is a continuous indexing operation
2. pressure angle is larger than in milling
3. hob and work piece both are rotating
4. a special multi-tooth cutter (hob) is used

Q. The teeth of both external and internal sper gears can be cut of

1. drilling machine
2. gear shaping machine
3. gear hogging machine
4. gear shaving machine

Q. The flanks of teeth of rack-type gear cutter used for cutting involute gear profiles are

1. Cycloidal
2. Circular
3. Involute
4. Straight