31.

32.

37.

Dirill chucks are hold on the machine spindle by means of
(A) chuck nut (8) drift
(C) drawin bar (D) ಜಂ:

For machining a job on the shaper the length of the stroke should be
(ಹ) equal to that job length. (8) more than job length.
(C) less than the job length. (D) maximum length of stroke.

In a crank type shaping machine the length of the stroke can be increased or decreased by rotating
the

(ക) Vertical lead screw (B) Horizontal lead screw
(ಲ) Radial lead screw (D) Connecting rod

Quick return mechanism is used in
(ಹ) milling machine (B) shaper
(C) welding machine (D) grinding machine

The type of file used for wood work 15

(A) single cut file (B) double cut file
(ಲ) raspcutfile (D) None of the above
The feed of shaper takes place
(ಹ) at the middle of cutting stroke (8) at the middle of return stroke
(C) at the start of return stroke (D) at the start of cutting stroke

A carbon steel piece 18 heated just above 730 °C, maintained at that temperature for a few hours
and then slowly cooled. What heat treatment process is carried out ?

(A) Normalizing (8) Case hardening
(ಲ) Hardening (D) Annealing

‘Which among the following locators is best suitable णि location of a round shaped job ?

(ಹ) Pin type locator (B) Wedge type locator

(ಲ) Vee locator (D) Adjustable stop locator
The root of ISO metric thread is

(ಹ) flat (8) ஸம்‌

(C) sharp corner (D) None of the above

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