Manufacturing Technologies - Set 09 - ObjectiveBooks
Manufacturing Technologies - Set 09

Manufacturing Technologies - Set 09

Practice Test: Question Set - 09

1. Which of the following statement is correct for oblique cutting system?
    (A) The cutting edge is inclined at an angle less than 90° with the normal to the velocity of the tool
    (B) Frequently, more than one cutting edges are in action
    (C) The chip flows on the tool face at an angle less than 90° with the normal on the cutting edge
    (D) All of the above
2. Crack in grinding wheel is developed due to
    (A) High temperature developed at the contact of the wheel face and work
    (B) Grinding hard work
    (C) Low speed of wheel
    (D) High speed of wheel
3. EDM machining is applied for
    (A) Shaping carbide dies and punches having complicated profiles
    (B) Making large number of small holes in sieves and fuel nozzles
    (C) Embossing and engraving on harder materials
    (D) All of these
4. In drilling operation, the metal is removed by
    (A) Shearing
    (B) Extrusion
    (C) Shearing and extrusion
    (D) Shearing and compression
5. In centerless grinders, the regulating wheel is inclined at
    (A) 0° to 8°
    (B) 9° to 15°
    (C) 16° to 20°
    (D) 21° to 25°
6. The process of improving the cutting action of the grinding wheel is called
    (A) Truing
    (B) Dressing
    (C) Facing
    (D) Clearing
7. Which of the following statement is wrong?
    (A) The diamond is the hardest tool material and can run at cutting speeds about 50 times that of high speed steel tool
    (B) The ceramic tools can be used at cutting speeds 40 times that of high speed steel tools
    (C) The cemented carbide tools can be used at cutting speeds 10 times that of high speed steel tools
    (D) The ceramic tools can withstand temperature up to 600°C only
8. Which of the following parameters influence the axial feed rate in centerless grinding?
    (A) Regulating wheel diameter
    (B) Speed of the regulating wheel
    (C) Angle between the axes of grinding and regulating wheels
    (D) All of the above
9. The type of tool used on milling machine and broaching machine is
    (A) Single point cutting tool
    (B) Two point cutting tool
    (C) Three point cutting tool
    (D) Multi-point cutting tool
10. The width of cutting edge of a parting off tool varies from
    (A) 3 to 12 mm
    (B) 5 to 20 mm
    (C) 8 to 30 mm
    (D) 15 to 40 mm
11. Which of the following statement is correct in regard to centreless grinding?
    (A) The workpiece is supported throughout its entire length as grinding takes place
    (B) It is a continuous process and adopted for production work
    (C) It requires no holding device for the work
    (D) All of the above
12. In a shaper
    (A) Tool is stationary and work reciprocates
    (B) Work is stationary and tool reciprocates
    (C) Tool moves over stationary work
    (D) Tool moves over reciprocating work
13. Side relief angle of a single point tool is the angle
    (A) By which the face of the tool is inclined towards back
    (B) By which the face of the tool is inclined sideways
    (C) Between the surface of the flank immediately below the point and a plane at right angles to the centre line of the point of tool
    (D) Between the surface of the flank immediately below the point and a line drawn from the point perpendicular to the base
14. When the end of a tap is tapered for about three or four threads, it is known as a
    (A) Taper tap
    (B) Bottoming tap
    (C) Second tap
    (D) None of these
15. When the cutting edge of the tool is dull, then during machining
    (A) Continuous chips are formed
    (B) Discontinuous chips are formed
    (C) Continuous chips with built-up edge are formed
    (D) No chips are formed
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