60.

61.

62.

63.

64.

65.

66.

What is the main purpose of using coolant while drilling ?
[ക] 0 81010 colouring of the chips

हि) To avoid the corrosion of polished machine parts
(9 1० 0001 (೧೯ tool edge and lubricate the chips

(D) To use it 85 a cleaning medium and finish the chips

A point-to-point control system is suitable only for one of the following applications 1
(ಯ) Grinding (B) Jig boring (C) Turning (ப) Milling profile

The temperature (റ which a workpiece is heated depends on the materials and the type of
forging process. The temperature range for forging high carbon steel is ↼

⊏⋀⋗↗⋯⋅∁⋅⊠∞⋅⋅⊂⊓∋⋥≀∃≮↿∅≖∁⇁↿∃∞↜⊂≼∁≻⋅∃⊓∐⋌⋅∁−∥⋮∘∘∁⋞∣⊃⊐∃⊞∘⊂⇀∏⋯↭∁

W}uch‘nnenrthefullawingia!hecharaclerish'cnfa shaping machine relating to cutting
process ?

(ಗಿ) Tool cuts on both forward and return stroke
(8) Tool cuts during forward stroke

(ल) 001 kept stationary

(1) Tool cuts during return stroke

‎which of the following cases do you use higher “rpm” while turning ?‏ جا
‎(A) Large diameter of work with higher feed rate‏

‎(8) Fine finish on small diameter of work

‎(೮) Hard and tough work material

‎(D) High rate of metal removed

‎The grade of a grinding wheel is specified by the letters from A to 2.
(हि) E © 1 ‏مم‎ ೫ (೧) ೫

‎Find the normal module of a helical gear. Having an angle of 25° and real module (m)
6.62.

‎(^) 662 X sin25° (ए) 6.62 x cos 25" (C) 662 x tan25° (D) 662 % cot 25°

‎150/ 2014 10 A

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