Interview Questions with Answers on Grinding - Set 03 - ObjectiveBooks

Interview Questions with Answers on Grinding - Set 03

Practice Test: Question Set - 03


1. What denotes by (A) in the (A60K5V8) mentioned marking system of a grinding wheel?
    (A) Grade
    (B) Grain size
    (C) Type of bond
    (D) Type of abrasive

2. Which is the advantage of wet grinding?
    (A) Good surface finish
    (B) Rough surface
    (C) Coolant not used
    (D) Chance of burning

3. What type of natural abrasives are crushed to produce abrasive grains for making the grinding wheels and lapping compound?
    (A) Emery
    (B) Diamond
    (C) Sand stone
    (D) Corundum

4. What type of abrasives is used for grinding of very hard materials with low tensile strength?
    (A) Corundum
    (B) Aluminium oxide
    (C) Green silicon oxide
    (D) Brown aluminium oxide

5. Which one of the following is NOT the cause for glazing of wheel?
    (A) Improper dressing of wheel
    (B) Dirty coolant
    (C) Hard wheel in place of soft wheel
    (D) Feed rate is too fine

6. Dressing and truing of a grinding wheel are
    (A) Exactly the same operation
    (B) Done with the same equipment
    (C) Done only for coarse grinding wheels
    (D) Only for form grinding wheels

7. Which among the following is the natural abrasive?
    (A) Corundum
    (B) Diamond
    (C) Emery
    (D) All of the above

8. Which method of grinding operation the work piece is rotated about its own axis between centers as it passes lengthwise across the face of a revolving grinding wheel?
    (A) Surface grinding
    (B) Pedestal grinding
    (C) Cylindrical grinding
    (D) Tool & cutter grinding

9. What will happen if the job is loosely fitted between centers in cylindrical grinding?
    (A) The job will be out of round
    (B) The job will be oversized
    (C) The job will be thrown out
    (D) The job will not rotate

10. Which bond use to make cutting off wheel in grinding?
    (A) Silicate bond
    (B) Shellac bond
    (C) Rubber bond
    (D) Vitrified bond

11. What is the cause of wheel chatter marks?
    (A) Wheel out of center
    (B) Incorrect wheel grade
    (C) Wheel is too soft
    (D) Dirty coolant

12. What denotes by ‘46’ in the (A46K5V8) mentioned marking system of a grinding wheel?
    (A) Grade
    (B) Structure
    (C) Grain size
    (D) Type of abrasive

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