10.

11.

12.

13.

14.

15.

In a plane turning operation, if L= Length to be turned (mm) ; 8, = feed (mm/rev); N = r.p.m
of work piece; D= diameter of work (m) ; V= cutting speed (m/min), then the time for turning
is equal 10 :

(&) LS, = N) in seconds ‏٦)/‎ 72

(൫ (LxD){(S,=N) in seconds യ) (LxD)/(S, xN) in minutes

The structure of Gamma Iron formed between 910°C and 1400°C is -

ക 0 (B) FCC

(C) HCP (D) None of the above
Purest form of iron 15 :

(ಗ) Pigiron (B) Cast iron

(¢) Wrought iron (D) Puddled iron

In which of the following welding techniques a separate electrode is used to maintain the
electric are which should not touch the work/ filler material?

(५) Manual metal arc welding (B) Submerged arc welding
ര MIG o) TIG

In a vernier caliper, 50 divisions on the vernier scale is equal to 49 divisions of the main
scale. Each division on the main scale is 0.5 mm. Then the least count in mm is -

(5) 0.01 (0) 0.10
(9) 2 യ 0.20

Which of the following tool materials is the hardest, next to diamond?

(A) Tungsten carbide (B) CBN (Cubic Boron Nitride)

(0 Ceramics (D) Titanium carbide
Which of the following is the most preferred bond type in a grinding wheel for grinding glass
components?

(ക Rubber (B) Vitrified

(€) வடி (D) னிட

In Flexible Manufacturing System :
(A) Machines are flexible
(ए) Cutting tools are flexible
(0) Machines as well മട cutting tools are flexible
(D) Work- machine schedule is flexible during production

78/2014 4 A