MCQ on Automatic & Semi-Automatic Lathes, Gears

1.Automatic lathes are machine tool, in which work pieces are loaded manually.

a)True                                     b)False

 

2.Choose the correct statement(s) about automatic lathes.

a) High production rate

b) High accuracy

c) High labour fatigue

d) More labour cost

 

3.In automatic lathes, there is less production time

a) True                                    b) False

 

4.Semi-automatic lathes are suitable for large size components

a)True                                     b) False

 

5.In a parallel action multi spindle automatic lathes, different kind of operation carried out on the same workpiece

a) True                                    b) False

 

6.In a multi-spindle automatic lathes, number of spindles are vary from

a) 2 to 8

b) 2 to 6

c) 2 to 10

d) 2 to 4

 

7.Automatic lathes are suitable for small size components

a) True                                    b) False

 

8.In a progressive action multi spindle automatic lathes, same operation carried out on all the spindles

a) True                                    b) False

 

9.Choose the correct statement (s) about single spindle automatic lathe

a) There is only one spindle

b) High production rate

c) Higher machining accuracy

d) Only one work piece is machined at a time

 

10.Choose a correct statement(s), about multi-spindle automatic lathe

a) Lower machining accuracy

b) Tool setting time is more

c) High production rate

d) Economical for longer runs only

 

11.In automatic lathes, cams are used for power transmission

a) True                                    b) False

 

12.Parallel action multi-spindle machine are suitable for machining complicated shapes

a) True                                    b) False

 

13.Production rate is very high in parallel action multi-spindle machine

a) True                                    b) False

 

14.Transfer machines are those used to indexing the tool regarding to the operation

a) True                                    b) False

 

15.Choose the correct statement(s) about transfer machines

a) only suitable for mass production

b) workpieces are clamped in fixtures

c) less floor space is required

d) less production time

 

16.Gear broaching is mainly used for producing external gears

a) True                                    b) False

 

17.For finishing a hardened gears, which method is/are used

a) gear grinding

b) gear lapping

c) gear burnishing

d) gear shaving

 

18.Choose the odd one out

a) Gear broaching

b) Gear shaping

c) Gear hobbing

d) Gear burnishing

 

19._________________Gears are self-lubricating

a) Nylon

b) Fibre

c) Brass

d) Bronze

 

20.The gear finishing method typically performed prior to heat treatment is:

a) Honing

b) continuous grinding

c) form grinding

d) shaving

 

21.The rolling action between engaging gear teeth is due to:

a. high viscosity lubricants

b. points of tangency between teeth

c. the involute curve form

d. gear rotational synchronization

 

22. The imaginary rolling circle produced by meshed gears during rotation is called the:

a. Pitch Circle

b. Base Circle

c. Dedendum Circle

d. Addendum Circle

 

23. The most common type of gear is the:

a. spur gear

b. helical gear

c. straight bevel gear

d. hypoid gear

 

24. A worm gear is an example of a gear type used along:

a. parallel axes

b. non-intersecting, non-parallel axes

c. connecting axes

d. intersecting axes

 

25. The most common gear manufacturing method is:

a. forging

b. machining

c. injection molding

d. stamping

 

26. Hobbing is used to produce only:

a. helical gears

b. spur gears

c. external gear teeth

d. internal gear teeth

 

27. Gear form cutting involves the use of:

a. hobbing and shaping

b. shaping and milling

c. multiple stacked blanks

d. broaching and milling

 

28. The gear finishing method typically performed prior to heat treatment is:

a. honing

b. continuous grinding

c. form grinding

d. shaving