Grinding Operations ITI Exam Questions with Answers - Set 01 - ObjectiveBooks

Grinding Operations ITI Exam Questions with Answers - Set 01

Practice Test: Question Set - 01


1. You have to select a grinding wheel with suitable abrasive to grind glass. What is the type of abrasive you will select?
    (A) Diamond
    (B) Emery
    (C) Quartz
    (D) Silicon carbide

2. The grade of a grinding wheel is specified by letters from A to Z. Which one of the following refers to the hardest grade?
    (A) E
    (B) J
    (C) P
    (D) Y

3. Grinding fluids are used to
    (A) Reduce the friction between the wheel face and the job
    (B) Wash away chips
    (C) Prevent loading of wheel
    (D) All of the above

4. What type of surface is produced by internal cylindrical grinding?
    (A) Flat
    (B) Formed
    (C) Irregular
    (D) Round hole

5. Which main part of the surface grinding machine has a driving mechanism?
    (A) Base
    (B) Table
    (C) Saddle
    (D) Wheel head

6. Which method of grinding operation, straight or tapered holes is produced?
    (A) Surface grinding
    (B) Pedestal grinding
    (C) Cylindrical grinding
    (D) Tool & cutter grinding

7. Why cutting fluid supply is continuous for wet grinding?
    (A) Maintain uniform temperature
    (B) Maintain dimensional accuracy
    (C) Increase the temperature
    (D) Maintain the centrifugal pressure

8. Which one of the following materials is used for making a grinding wheel?
    (A) Silicon carbide
    (B) Granite
    (C) Sand
    (D) Calcium carbonate

9. Which among the following is NOT the cause for loading of grinding wheel?
    (A) Dense structure
    (B) Feed too fine
    (C) Wheel speed more than recommended
    (D) Proper grain size and grade of wheel

10. By which unit the roughness value is expressed for grinding?
    (A) Micro meter
    (B) Micro in.
    (C) Micro lbs.
    (D) Micro ft.

11. Find the surface speed of the grinding wheel if the diameter of the grinding wheel is 300 mm (d) and RPM of the spindle is 2000 (N)?
    (A) 31.4 m/sec
    (B) 35.6 m/sec
    (C) 37.5 m/sec
    (D) 38.7 m/sec

12. Which grinding is the dry grinding?
    (A) Bench grinding
    (B) Cylindrical grinding
    (C) Surface grinding
    (D) Centre-less grinding

13. What type of abrasives are used for grinding low tensile strength materials like brass, copper, grey cast iron and aluminium?
    (A) Corundum
    (B) Aluminium oxide
    (C) Green silicon carbide
    (D) Brown aluminium oxide

14. Which method of grinding operations straight or tapered cylindrical surface produce?
    (A) Surface grinding
    (B) Pedestal grinding
    (C) Cylindrical grinding
    (D) Tool & cutter grinding

15. Which type of dresser in used in tool and cutter grinder?
    (A) Diamond dresser
    (B) Abrasion dresser
    (C) Star and disc dresser
    (D) Lock disc dresser

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