PRODUCTION TECHNOLOGY MCQ PART 2

PRODUCTION TECHNOLOGY MCQ PART 2 

01. In ultra-sonic machining, tool is made of

brass or copper

02. In drilling aluminum, a drill with

high helix angle is used

(spiral angle drills, have a 40º helix.)

03. Continuous chips with built up edge are formed during machining of

ductile metals

04. The tool life is dependent upon

cutting speed.

05. For machining a cast iron workpiece by a high-speed steel tool, the average cutting speed is

22 m/min

06. For harder alloy steel, the point angle of the drill is kept

more than 118°

07. The average cutting speed for turning mild steel with a high-speed steel tool is

25 to 31 m/min

08. In a shaper, the metal is removed during

forward stroke

09. In which operation, the chip thickness is minimum at the beginning of the cut and it reaches to the maximum when the cut terminates.

conventional milling

10. The taper on the lathe spindle is

1 in 20

11. The form grinding is used to

grind gear teeth, threads, splined shafts and holes.

12. The relief or clearance at the cutting edge of a flat drill varies from

3° to 8°

13. In drilling Bakelite and fibrous plastics, the point angle of a drill is

90°

14. In centerless grinders, the regulating wheel is inclined at

0° to 8°

15. For turning internal tapers, the suitable method is

by a taper turning attachment

16. Lathe bed is made of

chilled cast iron

17. The operation of making a cone shaped enlargement of the end of a hole is known as

counter-sinking

18. Internal or external threads of different pitches can be produced by

planetary milling machine

19. In a shaper

work is stationary, and tool reciprocates

20. ______is an operation of smoothing and squaring the surface around a hole.

Spot facing

21. Gear finishing operation is called

burnishing

22. In drilling mild steel and brass, the point angle of a drill is

118°

23. The chuck preferred for quick setting and accurate centering of a job is

      

collect chuck

24. A bottoming tap has

full threads for the whole of its length

25. Which of the following statement is correct about nose radius?

It improves tool life

It improves the surface finish

both above

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