Grinding Industrial Training Institute Exam Questions - Set 04 - ObjectiveBooks

Grinding Industrial Training Institute Exam Questions - Set 04

Practice Test: Question Set - 04

1. Balancing of wheel is done to
    (A) Make the sides of the wheel parallel
    (B) Make the outside diameter concentric with the bore
    (C) Equalize the weight in every position of the wheel
    (D) None of the above

2. It is commonly observed that the face of a grinding wheel becomes shiny and smooth or glazed after some use due to one of the following reasons. Choose the correct answer.
    (A) Grade of wheel is too hard
    (B) Abrasive of wheel is not suitable for the purpose
    (C) Grain size is too coarse
    (D) Structure of the wheel is too open

3. What is the trouble when grinding wheel fails to cut in a grinding machine?
    (A) Grinding wheels grade is too soft
    (B) Grinding wheel is glazed
    (C) Grinding wheel is not securely mounted on spindle
    (D) Too much feed is given

4. Which method of grinding the work piece is fed at a constant feed just below the grinding wheel to produce flat surface?
    (A) Surface grinding
    (B) Tool & cutter grinding
    (C) Internal cylindrical grinding
    (D) External cylindrical grinding

5. Which among the following is an artificial abrasive?
    (A) Aluminium oxide
    (B) Emery
    (C) Diamond
    (D) Corundum

6. Which types of guide wheel in used for sharpening hand saws?
    (A) Disc
    (B) Flaring cup
    (C) Saucer
    (D) Straight cup

7. What is the surface roughness grade obtained by cylindrical grinding?
    (A) N4
    (B) N5
    (C) N6
    (D) N7

8. A grinding wheel marked with 'C' is made with the abrasive
    (A) Aluminium oxide
    (B) Silicon carbide
    (C) Diamond
    (D) Corundum

9. The effect of using a glazed or loaded wheel is
    (A) More heat generation
    (B) Poor surface finish
    (C) Excessive cutting pressure between the wheel face and the work surface
    (D) All of the above

10. Grinding with a balanced grinding wheel will make it possible to achieve the required
    (A) Dimensional accuracy with surface finish
    (B) Positional tolerance surface finish only
    (C) Positional tolerance
    (D) Pattern of lay

11. What denotes by ‘5’ in the (A60H5V8) mentioned marking system of grinding wheel?
    (A) Grade
    (B) Structure
    (C) Grain size
    (D) Type of abrasive

12. Which grinding is the wet grinding?
    (A) Surface grinding
    (B) Bench grinding
    (C) Pedestal grinding
    (D) Flexible grinding

13. Which one of the following bonds is most commonly used on grinding wheels?
    (A) Vitrified
    (B) Rubber
    (C) Shellac
    (D) Silicate

14. What is the name, if the rate at which a point on the work surface pass a point on the wheel surface?
    (A) Work speed
    (B) Cutting speed
    (C) Spindle speed
    (D) Surface speed

15. What type of abrasives are used for grinding high tensile strength materials like carbon steels. high speed steels?
    (A) Silicon carbide
    (B) Aluminium oxide
    (C) Green silicon carbide
    (D) Corundum

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