Basic Manufacturing Process - Ch.7.5

[I] Choose Correct Answers
1.    Finishing is the operation best done by                                                                   (AKTU - 2008-09)
(a) Milling machine        (b) Shaper machine   
(c) Planar machine        (d) Grinding       
2.    Swing is the one of specifications of                                                                      (AKTU - 2008-09)
(a) Lathe machine            (b) Shaper machine   
(c) Driling machine        (d) Grinding machine

3.    One disadvantage of milling is
(a) quite slow    (b) quite fast    (c) medium    (d) none of these
4.    Finishing is                                                                                                          (AKTU - 2009-10)
(a) machining process        (b) welding process
(c) joining process        (d) metal forming process
5.     Which operations can be performed on a lathe machine
(a) Turning        (b) parting off        (c) Threading   
(d) Taper turning        (e) Boring        (f) All of these
6.     Turning produces
(a) Spherical shape        (b) Cylndrical shape   
(c) Quadrilaterial shape        (d) Square shape
7.     In which of the following operations, a single point cutting tool is used
(a) Milling    (b) Turning    (c) Drilling    (d) None of these
8.     In which of the following the direction of cutter rotation opposes the feed motion
(a) Up milling    (b) Down milling    (c) Both (a) and (b)   (d) None of these
9.     Principal parts of milling machine include
(a) Column            (b) Knee       
(c) Arbor            (d) Spindle    (e) All of these
10.    In compound rest method of taper turning, compound rest is swilled by the angle :                                                                                                                                                   (AKTU - 2008-09, 09-10)
(a)         (b)    
(c)         (d)
11.    Reaming operation is performed to:
(a) Enlarge a previously drilled hole   
(b) Finish previously drilled hole to accurate size
(c) Both (a) and (b)            (d) None of the above

[II] Fill in the Blanks
12.     Boring is the process of ....................... an already produced hole in a work piece.
13.     In a planer machine, the work piece ....................... and the cutting tool is .......................
14.     In lathe operations, the chuck is generally attached to .......................
15.     ....................... is a process in which the material is removed in the form of fine chips, almost as dust particles by abrasive actions using abrasives.
16.     Boring is ....................... to internal turning operations.
17.      One of the specifications to define the size of lathe is ..............                            (AKTU - 2010-11)

[III] True or False Statements
18.     Lathe is a basic machine used to perform a large operations.
19.     Grinding is basically a finishing operation.
20.     Quick return motion mechanism is used in shaper machine.
21.     Column, knee, work table, arbor and over arm are some important parts of a lathe machine.
22.     In down milling, chip thickness at the start is zero and increases to a maximum at the end of cut.
23.     Chamfering is an operations of producing a tapered corner on the work piece to remove its sharp edges.

Answer -
1. (d)            2. (a)        3. (a)        4. (a)   
5. (f)             6. (b)        7. (b)         8. (a)   
9. (e)            10. (b)        11. (b)   
12. enlarging    13. reciprocates, stationary    14. head stock
15.  grinding    16. similar    17. Height of centers.
18. (T)        19. (T)        20. (T)        21. (F)