Production Engineering MCQ - Set 16

Practice Test: Question Set - 16

1. Crater wear is predominant in
    (A) Carbon tool steels
    (B) Tungsten carbide tools
    (C) High speed steel tools
    (D) Ceramic tools

2. In order to prevent tool from rubbing the work _________ on tools are provided.
    (A) Rake angles
    (B) Relief angles
    (C) Face angles
    (D) None of these

3. In which of the following milling machine, the table can be tilted in a vertical plane by providing a swivel arrangement at the knee?
    (A) Universal milling machine
    (B) Plain milling machine
    (C) Universal milling machine
    (D) Hand milling machine

4. A 15 mm drilling machine means that it can drill a hole
    (A) Of maximum diameter 15 mm
    (B) In 15 mm thick plates
    (C) Having cross-sectional area of 15 mm²
    (D) None of these

5. The tool life is said to be over if
    (A) Poor surface finish is obtained
    (B) There is sudden increase in cutting forces and power consumption
    (C) Overheating and fuming due to heat of friction starts
    (D) All of the above

6. A fixture is defined as a device which
    (A) Holds and locates a workpiece and guides and controls one or more cutting tools
    (B) Holds and locates a workpiece during an inspection or for a manufacturing operation
    (C) Is used to check the accuracy of workpiece
    (D) All of the above

7. High speed steel drills can be operated at about _________ the speed of high carbon steel drills.
    (A) One-half
    (B) One-fourth
    (C) Double
    (D) Four times

8. Segmental chips are formed during machining
    (A) Mild steel
    (B) Cast iron
    (C) High speed steel
    (D) High carbon steel

9. In centre less grinders, the maximum angular adjustment of the regulating wheel is
    (A) 5°
    (B) 10°
    (C) 15°
    (D) 20°

10. The structure of a grinding wheel depends upon
    (A) Hardness of the material being ground
    (B) Nature of the grinding operation
    (C) Finish required
    (D) All of these

11. A feed gear box for a screw cutting lathe is designed on the basis of
    (A) Geometric progression
    (B) Arithmetic progression
    (C) Harmonic progression
    (D) None of these

12. In a shaper, the metal is removed during
    (A) Forward stroke
    (B) Return stroke
    (C) Both the forward and return strokes
    (D) Neither the forward nor the return stroke

13. The tail stock set over method of taper turning is preferred for
    (A) Internal tapers
    (B) Small tapers
    (C) Long slender tapers
    (D) Steep tapers

14. Larger than 15° side cutting edge angle
    (A) Increases tool life
    (B) Decreases tool life
    (C) Produces chipping and decreases tool life
    (D) Results in excessive stress concentration and greater heat generation

15. A dense structure of a grinding wheel is used for
    (A) Hard materials
    (B) Brittle materials
    (C) Finishing cuts
    (D) All of these

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