TRADESMAN (MACHINIST)
TECHNICAL EDUCATION DEPARTMENT
1. The reamer is used for:
(A) drilling holes in thin sheets (B) enlarging and finishing holes
(C) drilling deep holes (D) removing burrs
2. The purpose of tempering a hardened steel component is for:
(A) increasing it’s hardness (B) reducing it’s hardness
(C) increasing it’s ductility (D) increasing it’s toughness
3. The purpose of normalising is to:
(A) soften the metal (B) increase the toughness
(C) refine the structure (D) harden the surface
4. Cutting speed is always expressed in:
(A) revolutions per minute (B) millimetres per. minute
(C) metres per minute (D) number of strokes per minute
5. Which one of the following is not the operation performed using shaper?
(A) Machining horizontal and vertical surfaces
(B) Cutting splines
(C) Cutting square threads
(D) Cutting gears
6. Which of the following is not the part of a shaper?
(A) Clapppr box (B) Ram
(C) Tool head (D) Cross slide
7. Which of the following is non-clip removal process?
(A) Spinning on lathe (B) Machining on shaper
(C) Thread cutting (D) Gear hobbing