Pt -2 Quiz 2

20 Questions | Total Attempts: 88

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Pt -2 Quiz 2

Dear Students, plz fill complete and correct details before starting the quiz. This quiz contains 20 questions and time given is 10 minutes. Quiz will start at 9 PM on 19 Nov 2019 and finish at 9 30 PM You can attempt only for one time.


Questions and Answers
  • 1. 
    In metal cutting, use of low feeds and high cutting speeds is desired when the objective is
    • A. 

      (A) High metal removal rate

    • B. 

      (B) Dry machining

    • C. 

      (C) Use of soft cutting tool  

    • D. 

      (D) Surface finish

  • 2. 
    In order to achieve a specific surface finish in single point turning, the most important factor to be controlled is
    • A. 

      (A) Depth of cut

    • B. 

      (B) Cutting speed

    • C. 

      (C) Feed  

    • D. 

      (D) Tool rake angle

  • 3. 
    A lathe with four steps on the cone pulley and with back-gears will have
    • A. 

      (A) Four direct speeds

    • B. 

      (B) Four indirect speeds

    • C. 

      (C) Four direct and four indirect speeds  

    • D. 

      (D) Eight indirect speeds

  • 4. 
    The relation between the tool life (T) in minutes and cutting speed (V) in m/min is (where n = An exponent, which depends upon the tool and workpiece, and C = A constant)
    • A. 

      (A) VnT = C

    • B. 

      (B) VTn = C

    • C. 

      (C) Vn/T = C  

    • D. 

      (D) V/Tn = C

  • 5. 
    The vector sum of cutting velocity and chip velocity is __________ shear velocity.
    • A. 

      (A) Equal to

    • B. 

      (B) Less than

    • C. 

      (C) More than  

    • D. 

      (D) None of these

  • 6. 
    The angle made by the face of the tool and the plane parallel to the base of cutting tool is called
    • A. 

      (A) Rake angle

    • B. 

      (B) Cutting angle

    • C. 

      (C) Clearance angle  

    • D. 

      (D) Lip angle

  • 7. 
    It is desired to perform the operations like drilling, reaming, counter-boring etc. on a work piece. Which of the following machine will be used?
    • A. 

      (A) Sensitive drilling machine

    • B. 

      (B) Radial drilling machine

    • C. 

      (C) Gang drilling machine  

    • D. 

      (D) Multiple spindle drilling machine

  • 8. 
    The correct sequence of the following parameters in order of their maximum to minimum influence on tool life is
    • A. 

      (A) Feed rate, depth of cut, cutting speed

    • B. 

      (B) Depth of cut, cutting speed, feed rate

    • C. 

      (C) Cutting speed, feed rate, depth of cut  

    • D. 

      (D) Feed rate, cutting speed, depth of cut

  • 9. 
    In a center lathe, the cutting tool is fed in _________ with reference to the lathe axis.
    • A. 

      (A) Cross direction only

    • B. 

      (B) Longitudinal direction only

    • C. 

      (C) Both cross and longitudinal direction  

    • D. 

      (D) Any direction

  • 10. 
    Any number of equal divisions can be obtained on milling machine by
    • A. 

      (A) Direct indexing

    • B. 

      (B) Simple indexing

    • C. 

      (C) Compound indexing  

    • D. 

      (D) Differential indexing

  • 11. 
    The tool life is affected by
    • A. 

      (A) Depth of cut

    • B. 

      (B) Cutting speed

    • C. 

      (C) Feed  

    • D. 

      (D) All of these

  • 12. 
    Hard and tough materials like cast iron should be turned at
    • A. 

      (A) Slow speed

    • B. 

      (B) High speed

    • C. 

      (C) Any speed  

    • D. 

      (D) Certain specific speed

  • 13. 
    The effect of setting a boring tool above center height leads to
    • A. 

      (A) Increase in the effective rake angle and a decrease in the effective clearance angle

    • B. 

      (B) Increase in both effective rake angle and effective clearance angle

    • C. 

      (C) Decrease in the effective rake angle and an increase in the effective clearance angle  

    • D. 

      (D) Decrease in both effective rake angle and effective clearance angle

  • 14. 
    The machining of titanium is difficult due to
    • A. 

      (A) High thermal conductivity of titanium

    • B. 

      (B) Chemical reaction between tool and work

    • C. 

      (C) Low tool-chip contact area  

    • D. 

      (D) None of these

  • 15. 
    The size of a lathe is specified by the
    • A. 

      (A) Length between centers

    • B. 

      (B) Swing diameter over the bed

    • C. 

      (C) Swing diameter over the carriage  

    • D. 

      (D) All of these

  • 16. 
    Which of the following statement is wrong?
    • A. 

      (A) The larger side rake angle produces chipping

    • B. 

      (B) The smaller rake angle produces excessive wear and deformation in tool

    • C. 

      (C) The side cutting edge angle (less than 15°) increases tool life  

    • D. 

      (D) The increase in nose radius decreases tool life

  • 17. 
    A single point thread cutting tool should ideally have
    • A. 

      (A) Zero rake angle

    • B. 

      (B) Positive rake angle

    • C. 

      (C) Negative rake angle  

    • D. 

      (D) Point angle

  • 18. 
    In which of the following machine, the work rotates and the tool is stationary?
    • A. 

      (A) Vertical boring machine

    • B. 

      (B) Horizontal boring machine

    • C. 

      (C) Precision boring machine  

    • D. 

      (D) Jig boring machine

  • 19. 
    In drilling aluminum, a drill with
    • A. 

      (A) Zero helix angle is used

    • B. 

      (B) Low helix angle is used

    • C. 

      (C) High helix angle is used  

    • D. 

      (D) Any helix angle can be used

  • 20. 
    The operation performed on a shaper is
    • A. 

      (A) Machining horizontal surface

    • B. 

      (B) Machining vertical surface

    • C. 

      (C) Machining angular surface  

    • D. 

      (D) All of these

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