50.

51.

54.

55.

57.

A work piece is to be manufactured with a minimum dimension of 60 mm and tolerance of
0.02 mm Which is designation correctly for the above tolerance dimension?

എന്തു ‏85ھ‎
‎(५) ஸு (0) ട്ര 01
+03
(©) 605% (D) 60+0,02

A capstan lathe meant for bar work has a bar feed mechanism and a hollow main spindle.
The hollow main spindle has a provision to mount:

(ಯ) For Jaw chuck (B) Self centering chuck
(C) Collect chuck (D) Combination ண்பன்‌

Which taper is used on spindle nose of the lathe head stock?
(ക Brown and sharpe taper (ए) Morse taper
(0 Jarno taper (D) Pin taper

C.N.C lathe machines have built in co-ordinates measuring system, the zero position of this
co-ordination system is called:

(ಗಿ) Work zero point (B) Machine zero point
(0) Reference point (D) Program zero point

Which one of following factors will NOT influence the selection of cutting speed?
(A) Work material (B) Operation to be performed
(ര Tool material (D) Diameter of work piece

Taper turning by using compound slide method can cause the following defect?
(ಗ) Chatter (3) Steep taper can't produced
(C) Internal taper can't produced (D) Poor surface finish

Tool makers buttons are used for:
(A) Setting the tool correct centre height
(B) Aligning the work piece for boring to given datum
(0 Adjusting the slackness in guid ways of cross-slide
(D) Holding the work piece and Guiding the tool

When using taper turning attachment, the depth of cut given by?
(4) Compound slide (ए) (०58 ~ 81१९
(C) Tail stock (D) Adjusting tool

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