Lathe Specification of distance between centers specifies MCQ - Set 09 - ObjectiveBooks

Lathe Specification of distance between centers specifies MCQ - Set 09

Practice Test: Question Set - 09


1. Carriage in a lathe moves
    (A) Parallel to the axis of rotation
    (B) At any angle to the axis of rotation
    (C) Perpendicular to the axis of rotation
    (D) Either 'A' or 'B'

2. Which one of the following statements in respect of thread cutting is NOT correct?
    (A) Inserted tool bits are more advantageous while cutting threads
    (B) Before cutting internal threads, the hole should be chamfered
    (C) When internal thread cutting is done in a blind hole, a recess should be provided
    (D) When cutting internal threads, the core diameter may be equal to the size of external threads

3. Helix angle is found on
    (A) Feed rod of lathe
    (B) Threading tool
    (C) Threaded workpiece
    (D) Taper turning attachment

4. What is the function of the drop-worm provided in the apron of a centre lathe?
    (A) Engages / disengages the power feed
    (B) Changes the direction of rotation of the workpiece
    (C) Changes the feed direction
    (D) Engages / disengages the lead screw

5. To cut 20 mm internal square thread with a pitch of 2.5 mm, the core diameter should be
    (A) 17.5 mm
    (B) 18.5 mm
    (C) 20.0 mm
    (D) 22.5 mm

6. Which one of the following statements is true with reference to the tool life?
    (A) Time between starting and finishing a job
    (B) Total time for turning work including regarding of tool
    (C) Time between two successive regrinds
    (D) Time between starting of metal cutting and tool wear out

7. In a gap bed lathe, the gap is provided
    (A) Just below the nose of the headstock spindle
    (B) Just below the spindle of the tailstock
    (C) In the middle of the bed
    (D) Anywhere in the bed

8. Which one of the following controls the length of taper cut by the compound slide method?
    (A) Tailstock
    (B) Top slide
    (C) Cross slide
    (D) Saddle

9. Which one of the following combination of movements is used to turn a ball on a centre lathe with single point tool?
    (A) Carriage and compound slides are used
    (B) Cross slide and compound slides are used
    (C) Carriage and cross slide are used
    (D) Compound slide and apron are used

10. The lathe bed has
    (A) One set of 'V' guideways and flatways
    (B) Two sets of 'V' guideways and flatways
    (C) Three sets of 'V' guideways and flatways
    (D) Four sets of 'V' guideways and flatways

11. Which one of the following statements in respect of eccentric turning is correct?
    (A) In an eccentric shaft, the centers of the individual diameters are displayed
    (B) Eccentric shaft can be turned by holding it in a three-jaw chuck
    (C) Higher speed is chosen for eccentric turning
    (D) It is preferred to give more depth of cut in the beginning while turning an eccentric shaft

12. The face plate is used for turning
    (A) Regular shaped jobs
    (B) Irregular shaped jobs
    (C) Flat jobs
    (D) None of the above

13. When machining irregularly shaped workpiece held in face plate, counterbalancing is done by clamping weights. This is done
    (A) Before mounting the face plate on the spindle nose
    (B) After mounting the face plate on the spindle nose and revolving the workpiece at the slowest rpm
    (C) After mounting the face plate on the spindle nose and keeping the spindle in neutral position
    (D) After taking the rough cut

14. By which one of the following, a multi-start thread is cut on a lathe?
    (A) By a chaser
    (B) By a die head
    (C) By a single-point tool
    (D) By a split die

15. You want to fix an irregularly shaped workpiece on a lathe, which one of the following accessories is the most appropriate?
    (A) Three-jaw self-centering chuck
    (B) Driving plate
    (C) Face plate
    (D) Catch plate

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